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Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/syscall')
144 files changed, 1887 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1007 b/results/classifier/qwen3:32b/reasoning/syscall/1007 new file mode 100644 index 00000000..1c4b8e6d --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1007 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user provided a bug report titled "qemu-user: add execveat syscall support" and wants me to classify it into one of the three categories: instruction, syscall, or runtime. + +First, I need to understand what the bug report is about. The title mentions adding support for the execveat syscall in qemu-user. Qemu-user is part of QEMU that allows running applications compiled for one architecture on another, right? So, syscalls are system calls made by the user-space programs to the kernel. The execveat syscall is used for executing a program relative to a directory file descriptor. If qemu-user doesn't support this syscall, programs using it would fail when run under QEMU's emulation. + +The categories are instruction, syscall, or runtime. The instruction category is for faulty instructions described in the bug. The syscall category is for errors related to system calls. Runtime errors are other issues occurring during execution that don't fit the other two. + +Since the bug report is about adding support for a specific syscall (execveat), the issue here is directly related to a system call. The problem isn't about a faulty instruction (like an illegal opcode or something) but rather the absence or incorrect handling of a syscall. Therefore, the correct category should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1010 b/results/classifier/qwen3:32b/reasoning/syscall/1010 new file mode 100644 index 00000000..be1c1071 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1010 @@ -0,0 +1,19 @@ +<think> +Okay, let's see. The user is having issues with 9p mounts in a Docker VM setup using Lima and QEMU. The problem manifests as "Timer expired" errors when listing directories, and under strace, the getdents64 system call is failing with ETIME. When using a different protocol (9p2000.L), they get "Network dropped connection on reset" errors related to lgetxattr. + +The question is to classify this bug report into one of the categories: instruction, syscall, or runtime. The user mentioned that Lima suggested it might be a QEMU issue. + +First, "instruction" refers to a faulty instruction in the code, like incorrect assembly or machine instructions. That doesn't seem to fit here. The problem is about system calls failing with specific errors during operation. + +The errors here are happening during system calls (getdents64 and lgetxattr) which are part of the interaction between the user space and the kernel. However, the classification options are syscall for errors with a syscall. But wait, the syscall category is for errors with the syscall itself, perhaps like incorrect parameters or implementation. Alternatively, runtime errors are other issues during execution. + +But the problem here is that the system calls are returning errors (ETIME and ENETRESET) due to the underlying 9p implementation in QEMU. The user is experiencing runtime issues where the syscalls fail because of how QEMU handles the 9p protocol. The errors are not due to incorrect use of syscalls from the application (like ls) but rather the QEMU's 9p implementation not handling the requests properly, leading to timeouts or connection resets. + +Since the problem is related to how QEMU processes the 9p protocol during runtime, leading to these syscall errors, the root cause is likely in QEMU's handling. However, according to the classification options, if the error is directly related to a syscall failing because of a bug in the syscall's implementation (like in the kernel or QEMU's emulation), does that count as a syscall category bug? Or is it a runtime error? + +The syscall category is for an error with a syscall. Since the syscall (getdents64, lgetxattr) is failing due to the underlying 9p implementation in QEMU (which is part of the system call handling), this might be considered a syscall issue. However, if the problem is that during runtime the QEMU's 9p server is not responding correctly, leading to these errors, maybe it's a runtime error. + +But the error messages are generated by the system calls themselves. The user is getting ETIME from getdents64, which is a syscall error. If the QEMU's 9p implementation is causing the syscall to time out, that would be a problem with the syscall's handling. So perhaps it's a syscall category issue. However, runtime errors could be other runtime problems. The description says "syscall: An error with a syscall". Since the problem is directly related to syscalls failing with specific errors, and the root cause is in how QEMU handles the 9p protocol during these syscalls, the category would be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1012 b/results/classifier/qwen3:32b/reasoning/syscall/1012 new file mode 100644 index 00000000..f809604a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1012 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting an issue with bash here-documents failing after an update to gnulib and coreutils. The error is "cat: -: No such file or directory". The problem seems to be related to how newfstatat is behaving differently than fstat. + +Looking at the strace output, in the problematic case, newfstatat is called with AT_EMPTY_PATH, and it returns ENOENT. Whereas in the old system, fstat is used and it works. The key difference here is the syscall being used—newfstatat versus fstat. The error arises because newfstatat is not finding the file, but fstat did before. + +Since the issue is about the behavior of a syscall (newfstatat vs fstat) leading to an error, this would fall under the syscall category. The problem isn't about an incorrect instruction or runtime errors but specifically the syscall's handling. So the correct classification should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1033 b/results/classifier/qwen3:32b/reasoning/syscall/1033 new file mode 100644 index 00000000..cfb1a394 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1033 @@ -0,0 +1,11 @@ +<think> +Okay, let's tackle this bug report. The user is having an issue with fakeroot under QEMU failing with a "semop(1): encountered an error: Function not implemented" message. They mentioned it's similar to Debian bug 965109, which was about QEMU not handling certain syscalls. + +First, I need to classify this bug into one of the three categories: instruction, syscall, or runtime. The error message directly references the semop syscall, which is a system call used for semaphore operations. The error says the function isn't implemented, which suggests that QEMU isn't handling that particular syscall correctly. + +The user built QEMU from the latest git repo, which supposedly includes the fix for the mentioned Debian bug. But the problem persists. This could mean that either the fix isn't applied correctly, there's a regression, or maybe another syscall-related issue. Since the error is specifically about a syscall not being implemented, the category should be syscall. + +The other categories don't fit here. It's not about a faulty instruction (like an invalid CPU instruction), nor is it a general runtime error. The core issue is QEMU's handling (or lack thereof) of the semop syscall. So the correct classification is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1054831 b/results/classifier/qwen3:32b/reasoning/syscall/1054831 new file mode 100644 index 00000000..7f7654bc --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1054831 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is trying to set up a SPARC chroot on a Debian x86-64 host using qemu-user-static. They followed the steps for armhf, which worked, but for SPARC32+, they get a "fork: Invalid argument" error during the second stage of debootstrap. + +Hmm. The error is happening when they run the second stage of debootstrap inside the chroot with qemu-sparc32plus-static. The problem isn't with the initial setup because the chroot starts, but when they try to run the second stage, which probably involves some system calls. + +The "fork: Invalid argument" error suggests that the fork system call is failing. Fork is essential for creating new processes. Since they're using QEMU user-mode emulation, it's possible that QEMU isn't correctly handling the fork syscall for SPARC32+. + +I remember that user-mode QEMU needs to intercept system calls and emulate them. If there's a missing or incorrect handling of a particular syscall, like fork, that could lead to such an error. The fact that it works for armhf but not for SPARC32+ points to a possible issue specific to the SPARC target in QEMU, perhaps a syscall that's not properly emulated or a missing compatibility layer. + +The error isn't about a specific instruction, since the problem arises at the syscall level. It's not an instruction error but rather a problem with handling the fork system call. So the category would be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1066909 b/results/classifier/qwen3:32b/reasoning/syscall/1066909 new file mode 100644 index 00000000..4cc8c71c --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1066909 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU's microblaze emulation when using CLONE_THREAD. The problem is that when a new process is created with CLONE_THREAD, the program counter starts at the system call instruction instead of the next instruction. This leads to infinite thread creation and a crash. + +Hmm, so the core issue here is about the program counter not advancing after a system call. When you make a system call like clone, after the syscall returns, the CPU should continue executing the next instruction. But in this case, it's restarting from the syscall instruction again. That suggests that the emulation isn't properly handling the return from the syscall, specifically not updating the program counter correctly. + +The categories are instruction, syscall, or runtime. The instruction category is for faulty instructions described. The syscall category is about errors with syscalls. Runtime is for other runtime errors. + +Since the problem is that after a syscall (CLONE_THREAD), the PC isn't pointing to the next instruction but stays on the syscall, this seems like a syscall handling issue. The emulator isn't correctly processing the return address after the syscall. The syscall itself is being made, but the emulation's handling of the syscall's return is broken. Therefore, this would fall under the syscall category. The runtime category is for other runtime issues, but since it's specifically about the syscall's execution and return, it's more syscall-related. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1075272 b/results/classifier/qwen3:32b/reasoning/syscall/1075272 new file mode 100644 index 00000000..a723b702 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1075272 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The bug report is about the do_socket function in qemu's linux-user/syscall.c. The issue is that when handling socket types for MIPS emulation, the code isn't properly accounting for the SOCK_NONBLOCK and SOCK_CLOEXEC flags. These flags are OR'd with the socket type, but the existing code permutes the type without masking out these flags. So, when an application calls socket with SOCK_STREAM, the permutation might turn it into SOCK_DGRAM, leading to an error because the protocol (like IPPROTO_TCP) doesn't match. + +The problem here seems to be that the syscall handling for sockets isn't correctly processing the flags. The core issue is in how the socket type is being remapped. Since syscalls involve the interface between user space and kernel, and the bug is about how the syscall arguments are processed (specifically, the type parameter of the socket syscall), this would fall under a syscall-related error. + +The user mentioned that the flags need to be masked off before permutation and that the flags themselves have different values on MIPS. So, the problem is in the syscall argument translation, which is part of the syscall handling in QEMU's user-mode emulation. Therefore, this is a syscall category issue. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1075339 b/results/classifier/qwen3:32b/reasoning/syscall/1075339 new file mode 100644 index 00000000..8d7b0f48 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1075339 @@ -0,0 +1,15 @@ +<think> +Okay, let's see. The user is talking about a bug in QEMU's Linux-user emulation related to the setsockopt function. The problem is that setsockopt is always treating the optlen argument as a 4-byte int, which causes issues for timeout options that require a timeval structure. The user mentions that this breaks timeout options, which might be 8 or 16 bytes depending on the system. + +So, I need to classify this bug into one of the three categories: instruction, syscall, or runtime. + +First, what's the difference between these categories? Instruction-related bugs would involve incorrect CPU instructions, maybe something like executing the wrong instruction or handling opcodes incorrectly. Syscall would be about system calls, which are the interface between user programs and the kernel. Runtime errors are other issues that occur during execution that don't fit into the other two categories. + +The bug here is about the setsockopt system call. The emulation is mishandling the optlen parameter, which is part of the system call's parameters. Specifically, the emulation is not correctly handling the length of the option value, assuming it's a 4-byte int when it might be a larger structure. Since setsockopt is a system call, and the error is in how the system call's parameters are processed, this seems like a syscall issue. + +But wait, could it be runtime? The description says it's part of the QEMU's Linux-user emulation. The problem is that during the emulation of the system call, the code is not correctly handling the optlen. So the error is in the emulation of the system call's behavior. Therefore, it's a syscall category because it's about the correct handling of a system call's parameters. Runtime errors are more about things like memory management, threading issues, etc., not specifically about system call parameters. + +So the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1076445 b/results/classifier/qwen3:32b/reasoning/syscall/1076445 new file mode 100644 index 00000000..797c2cb7 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1076445 @@ -0,0 +1,19 @@ +<think> +Okay, let's try to figure out the category for this bug report. The user is saying that when they use qemu-i386 with a cross-compiled program that calls system(), it returns -1, but it works on other architectures like arm and mips. The same problem occurs with x86_64. + +First, the system() function in C is used to execute shell commands. When the program runs, it should call the system's shell to execute the command. The fact that it works on arm and mips but not on i386 and x86_64 suggests there might be an issue specific to those architectures in QEMU. + +The error here is that the system() call returns -1, which usually indicates an error. So, the question is why QEMU is failing to handle the system call correctly for i386 and x86_64 but not others. + +Possible categories are instruction, syscall, or runtime. + +Instruction would be if the CPU emulation was incorrect, like a wrong instruction being executed. But system() relies on syscalls, so maybe it's a syscall issue. + +Looking at the setup: QEMU's syscall emulation might be missing something for i386 and x86_64. The other architectures (arm, mips) work, so maybe there's a difference in how syscalls are handled in those emulated environments. + +The user is using uClibc, which might have different syscall numbers or handling compared to glibc. If QEMU's syscall translation for i386/x86_64 isn't compatible with uClibc's system() implementation, that could cause the error. + +Since the problem is specifically with the system() call, which is a libc function that makes a syscall (like execve or similar), the issue likely lies in how QEMU handles that particular syscall for those architectures. Therefore, the category would be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1111 b/results/classifier/qwen3:32b/reasoning/syscall/1111 new file mode 100644 index 00000000..653dcd24 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1111 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is encountering an ENOSYS error when running the "perf bench futex lock-pi" command inside an amd64 Docker image on an s390x system. They mentioned that using qemu-x86_64-static is involved. The error message points to the FUTEX_LOCK_PI system call not being implemented. + +First, I need to recall what ENOSYS means. ENOSYS is "Function not implemented," which typically indicates that the system call the program is trying to use isn't supported by the kernel or the emulator in use here. Since the user is running an amd64 container on an s390x host, QEMU is emulating the x86_64 environment. + +The problem arises when the perf tool tries to execute the FUTEX_LOCK_PI futex operation. The key here is that QEMU might not be properly emulating the specific system call or the underlying hardware features required for FUTEX_LOCK_PI. FUTEX_LOCK_PI is related to the futex (fast userspace mutex) mechanism in Linux, which involves certain kernel support and possibly specific CPU features. + +The question is whether this is a QEMU issue. Since QEMU is responsible for translating the system calls from the emulated architecture (x86_64) to the host's system calls (s390x), if QEMU doesn't handle the FUTEX_LOCK_PI operation correctly, it would result in an ENOSYS error. The user is using qemu-x86_64-static, which is the static binary for running x86_64 binaries on a different architecture. If the QEMU emulator doesn't support that particular futex operation, it would return ENOSYS because it can't translate or handle that system call. + +The categories given are instruction, syscall, or runtime. Since the error is about a system call (FUTEX_LOCK_PI) not being implemented by QEMU, this would fall under the syscall category. The problem isn't a faulty instruction in the traditional sense (like an invalid opcode) but rather that the system call isn't supported in the emulation environment. Runtime errors are more about things like memory issues or other runtime conditions, not missing system call support. Therefore, the correct classification here is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/121 b/results/classifier/qwen3:32b/reasoning/syscall/121 new file mode 100644 index 00000000..d2aaa4b2 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/121 @@ -0,0 +1,11 @@ +<think> +Okay, let's try to figure out the category for this bug report. The user says that a multiprocess program gets incorrect results when using qemu arm-linux-user. The possible categories are instruction, syscall, or runtime. + +First, I need to understand what each category means. Instruction would mean there's a problem with the actual CPU instructions being executed incorrectly. Syscall would be an error related to system calls, which are how programs interact with the operating system. Runtime errors are other issues that happen during the execution of the program but not specifically instruction or syscall related. + +The user is using QEMU to emulate an ARM environment. If the multiprocess program is getting incorrect results, maybe it's related to how QEMU handles system calls for ARM. For example, maybe the system calls that create processes (like fork) aren't being handled correctly in the ARM emulation. That would fall under the syscall category. + +Alternatively, if QEMU isn't correctly executing ARM instructions, that would be an instruction error. But the problem here is with multiprocess, which typically involves system calls for process management. So I think it's more likely a syscall issue. Runtime could be other things like memory management or scheduling, but since it's about incorrect results in multiprocess, system calls seem more directly involved. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/122 b/results/classifier/qwen3:32b/reasoning/syscall/122 new file mode 100644 index 00000000..efe99fa4 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/122 @@ -0,0 +1,11 @@ +<think> +Okay, let's tackle this. The user says "linux-user does not check PROT_EXEC". Hmm, I need to figure out what category this falls into. The options are instruction, syscall, or runtime. + +First, PROT_EXEC is a protection flag related to memory pages, specifically for execution permission. The linux-user component in QEMU is probably responsible for handling system calls when running Linux user-mode programs. So if it's not checking the PROT_EXEC flag, that might relate to how it handles memory protections during syscalls like mmap or mprotect. + +Wait, the bug is about not checking a certain protection. If a program tries to mark memory as executable and QEMU isn't verifying that, this could be a problem in the syscall handling. Because when a program makes a syscall to modify memory protections, QEMU's linux-user part should check those flags. So this seems like a syscall-related issue. + +But maybe it's a runtime error? Runtime errors are other issues that occur during execution. However, since the issue is specifically about not validating a syscall parameter (PROT_EXEC), it's more likely a syscall error. The instruction category is for faulty instructions, like if there's a wrong CPU instruction used. That doesn't seem to fit here. So I think the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1238 b/results/classifier/qwen3:32b/reasoning/syscall/1238 new file mode 100644 index 00000000..817cc873 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1238 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is having issues with QEMU when using coreutils-9 on MIPS n32. The error messages mention "Invalid argument" during deallocation. Looking at the strace output, there are calls to fadvise64 and fallocate that return errno 22, which is invalid argument. + +Hmm, those system calls. The problem seems to be related to how QEMU handles these syscalls for MIPS n32. The same code works on btrfs but not on ext4, which might be a filesystem-specific issue, but the error is coming from the syscall itself. + +The key lines are the fadvise64 and fallocate calls failing. The first argument for fadvise64 is 4 (the file descriptor), and the flags might be incorrect. Similarly, fallocate has parameters that might not be supported. But why would that be a QEMU issue? + +Wait, QEMU acts as a user-space emulator. If the syscall is not properly emulated for MIPS n32, especially for certain flags or parameters, it could return invalid arguments. For example, maybe the way QEMU translates the host's syscalls to the guest's architecture isn't handling specific flags in fadvise or fallocate correctly. + +The user mentioned it's part of QEMU, so the problem is likely in how QEMU handles these syscalls. So the category here is about syscall handling in QEMU. The error is during the execution of the syscall, not an instruction error or runtime error like memory issues. So the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1254672 b/results/classifier/qwen3:32b/reasoning/syscall/1254672 new file mode 100644 index 00000000..f27477ec --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1254672 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is having a problem where running "ps" in a chrooted Debian armhf environment on an Ubuntu Precise AMD64 host causes a segmentation fault. They used qemu-debootstrap and qemu-user-static. The error message points to procps-ng's ps, but they think the bug might be in QEMU since they couldn't find a procps bug report. + +Hmm, segmentation faults in user-space programs under QEMU user-mode emulation often point to issues with how QEMU handles the system calls or the binary execution. Since "ps" is trying to read process information, maybe it's accessing some system call that's not properly emulated. For example, maybe QEMU isn't correctly handling a specific syscall that ps uses to get process data, leading to a crash. + +Alternatively, it could be an instruction issue if the ARM binary is executing an instruction that QEMU doesn't emulate correctly. But since ps is a common utility, I'd think QEMU should handle its execution. However, maybe there's a specific system call that's involved here, like getdents or something related to reading /proc, which ps uses to list processes. If QEMU's syscall emulation for that particular architecture is missing or incorrect, that would cause a segfault. + +The user mentions that the problem happens when running "ps" in the chroot. Chrooted environments can have different /proc structures, but since it's under QEMU, maybe the syscalls to access process info aren't properly translated. So this seems like a syscall emulation problem in QEMU. The runtime category would be for other runtime errors, but since it's specifically about system call handling, the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1261 b/results/classifier/qwen3:32b/reasoning/syscall/1261 new file mode 100644 index 00000000..ed62a6d3 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1261 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU on the LoongArch64 architecture. The problem is that when they run a bash script checking if a file is readable, it returns "ERROR" instead of "OK". The strace log shows that syscall 439 (faccessat2) is not implemented in QEMU's linux-user/syscall handling. + +So, the key points here are about a system call that's not supported. The user mentioned that faccessat2 is present on LoongArch64 but QEMU's syscall handling is missing it. The error occurs because QEMU doesn't handle that particular syscall, leading to the incorrect result. + +The categories to choose from are instruction, syscall, or runtime. Since the issue is directly related to a missing system call implementation in QEMU, this falls under the syscall category. The problem isn't about a runtime error in general or a faulty instruction, but specifically about a syscall not being handled correctly. Therefore, the correct classification is "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1263747 b/results/classifier/qwen3:32b/reasoning/syscall/1263747 new file mode 100644 index 00000000..d2ac396a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1263747 @@ -0,0 +1,41 @@ +<think> +Okay, let's try to figure out the category for this bug report. The user says that an ARM64 binary runs fine on real hardware but loops forever in QEMU with 100% CPU usage. The binary is a statically linked OCaml program that should print "hello, world" and exit. + +First, the problem is specific to QEMU, so it's a QEMU bug. The categories given are instruction, syscall, or runtime. + +If the binary is stuck in a loop, maybe there's an issue with how QEMU handles certain instructions. For example, maybe a specific CPU instruction isn't emulated correctly, causing an infinite loop where it should exit. That would be an instruction category issue. + +Alternatively, if the program relies on a syscall that's not properly implemented in QEMU's user-mode emulation, that would be a syscall problem. But the user mentioned it's a statically linked binary, so maybe it's not relying on external libraries. However, even statically linked programs use syscalls for things like printing to stdout. If QEMU's emulation of syscalls like write() or exit() is broken, the program might not behave correctly. However, the program is looping instead of exiting, which might suggest it's not getting a response from a syscall, or perhaps it's stuck in a system call loop. + +Another angle: runtime errors. The OCaml runtime might be doing something that QEMU's user-space emulator isn't handling correctly. For example, thread management, signal handling, or something related to the emulator's runtime support. But the problem is that the binary runs on real hardware, so the runtime on the actual ARM hardware works, but not in QEMU. That suggests QEMU's user-mode emulation isn't handling something the runtime expects. + +But since the binary is stuck in a loop, maybe there's a specific instruction that's causing the loop. For example, if the program uses a certain ARM64 instruction that QEMU's emulator doesn't handle correctly, leading to an infinite loop. The fact that it works on real hardware points to QEMU not emulating that instruction properly. + +Alternatively, maybe the OCaml program uses some low-level features (like specific atomic operations or memory barriers) that QEMU isn't emulating correctly, leading to an infinite loop in the runtime. But again, that could fall under instruction or runtime. + +Wait, the patch mentioned in the source compilation step is from a Caml-list archive. The patch might be related to a specific ARM64 issue. If the original code had a problem with ARM64 that was fixed by the patch, but QEMU isn't handling the corrected code properly, that's possible. However, the user applied the patch, so the code should be correct for real hardware. + +Another thought: if the binary uses syscalls that are supposed to terminate the program (like exit), but QEMU isn't handling that syscall correctly, causing the program to not exit and instead loop. For example, if the exit syscall isn't properly emulated, the program might return to the main loop instead of exiting. That would be a syscall category issue. + +But the symptom is that it's looping with 100% CPU. So maybe the program is stuck in a loop because a certain condition isn't met, which depends on a syscall. For example, maybe the program is waiting for a signal or a resource that isn't available in QEMU's environment. However, the program is supposed to print and exit, so it's more likely that it's getting stuck in a system call that's not returning, or the code isn't reaching the exit call. + +Alternatively, maybe the program uses some hardware-specific features (like CPUID or other cpuid instructions) that QEMU isn't emulating correctly, leading to incorrect behavior. For example, if the OCaml runtime checks for certain CPU features and, in QEMU, it's returning incorrect information, leading to incorrect code paths that loop. + +But without more details on the actual code, it's hard to say. The key is that the binary runs on real hardware but not in QEMU. The problem is in QEMU's user-mode emulation. The fact that it's an infinite loop suggests that either an instruction isn't being emulated correctly, causing the program to not proceed, or a syscall isn't being handled properly, leading to an infinite loop in the program. + +If the program is stuck in a loop that's part of the OCaml runtime, maybe due to incorrect syscall handling (like not being able to allocate memory, or a failed syscall causing a loop), that would be a syscall issue. For example, if the runtime is trying to create threads and the clone() syscall isn't working, leading to an infinite retry loop. + +But given that the user says it's a statically linked binary, maybe it's not using threads. The test program is simple: print_endline "hello, world". So the steps are: initialize OCaml runtime, execute the print, and exit. If during the exit process, the runtime is doing something that's not working in QEMU, perhaps a syscall that's supposed to exit the process isn't working. For example, if the exit_group syscall isn't being emulated, and the program is returning to the runtime, which then loops. + +Alternatively, maybe the program is using some system calls that are architecture-specific, and QEMU's user-mode for ARM64 isn't handling them correctly. For example, maybe the program uses a system call that's available on real ARM64 but QEMU's emulation doesn't support it, leading to an error that's not handled, causing an infinite loop. + +In that case, the problem would be a syscall category issue. However, if the problem is that QEMU is not correctly emulating a specific CPU instruction that the binary uses, leading to incorrect execution flow (like not jumping to the exit code), then it's an instruction issue. + +Given that the problem is that the binary runs on real hardware but not in QEMU, and the binary is using standard OCaml runtime, which is known to work on ARM64 when run natively, the issue is likely in QEMU's emulation of some aspect. The fact that it's looping suggests that a particular instruction or syscall isn't causing the program to exit as expected. + +I think the most likely category here is 'syscall' because the program is probably making a system call (like exit) that isn't being properly handled by QEMU's user-mode emulator, causing it to not exit and instead loop. Alternatively, if the problem is that a specific instruction isn't causing the program to proceed (like a branch or a system call instruction), then it would be 'instruction'. However, without knowing the exact cause, I have to rely on the symptoms. + +But considering that QEMU's user-mode emulation is responsible for translating syscalls between the host and guest architectures. If the binary is making a syscall that QEMU doesn't handle correctly, that's a syscall issue. Since the binary is supposed to exit cleanly, maybe the exit syscall isn't being passed through properly. So the answer might be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/127 b/results/classifier/qwen3:32b/reasoning/syscall/127 new file mode 100644 index 00000000..e66b414b --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/127 @@ -0,0 +1,17 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU where there's a missing support for cmsg IP_PKTINFO, giving the error "Unsupported ancillary data: 0/8". The categories to choose from are instruction, syscall, or runtime. + +First, I need to understand what the problem is. The error message mentions "ancillary data", which in networking contexts usually relates to control messages (cmsg) used with socket options. The IP_PKTINFO is a specific option related to getting packet information, like the interface it was received on. + +The error "Unsupported ancillary data: 0/8" suggests that when trying to use this ancillary data, the system doesn't support it. This could be due to QEMU not properly emulating the necessary socket behavior. + +Now, categorizing this. The instruction category is for a faulty instruction, like a wrong command or step in a guide. That doesn't seem to fit here. + +The syscall category is for errors related to system calls. Since this involves a system call (probably related to sockets, like recvmsg or sendmsg) that's not being handled correctly by QEMU's emulation, this might fit. The problem is that QEMU isn't supporting the specific ancillary data through the syscall it's emulating. + +Runtime errors are other issues that occur during execution but aren't specifically syscall-related. However, in this case, the error is directly related to a system call's handling of ancillary data. So it's more likely a syscall issue. + +Therefore, the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1356916 b/results/classifier/qwen3:32b/reasoning/syscall/1356916 new file mode 100644 index 00000000..5200b4ca --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1356916 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is talking about a bug in QEMU where the argument list limit for execve is causing a failure. They mentioned that real kernels don't have a fixed limit anymore, but QEMU's user-space emulation does. The example given is using a command with a huge number of arguments, leading to "Argument list too long". + +First, I need to figure out which category this falls into. The options are instruction, syscall, or runtime. + +The problem here is related to the emulation of the kernel's behavior regarding the maximum size of arguments passed to execve. Since execve is a system call, this seems like a syscall issue. The error occurs when the system call is being handled in the user-space emulation, specifically when checking the argument list size. The QEMU's emulation isn't matching the real kernel's behavior here. So the error is in how the system call is being processed in the emulator. + +It's not an instruction error because there's no mention of specific CPU instructions being faulty. It's not a general runtime error either because it's tied directly to the system call handling. Therefore, the correct category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1357206 b/results/classifier/qwen3:32b/reasoning/syscall/1357206 new file mode 100644 index 00000000..5bf78e69 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1357206 @@ -0,0 +1,17 @@ +<think> +Okay, let's see. The user is reporting that QEMU user mode crashes when running multi-threaded code. They tested with a simple program that creates two threads, each printing a message. Both i386 and aarch64 versions of QEMU crash with segmentation faults. + +First, I need to figure out what category this falls into. The options are instruction, syscall, or runtime. + +Looking at the problem: The crash happens in multi-threaded code. Threads in user mode would typically involve some system calls for thread creation, like clone() on Linux. QEMU user mode emulates the system calls by translating them to the host's equivalent. If there's an issue with how QEMU handles these syscalls when multiple threads are involved, that could lead to a crash. For example, if the thread creation is not properly translated or if there's a race condition in the emulation layer, that might cause a segmentation fault. + +The bug report mentions that the problem occurs in user mode, not system mode. User mode QEMU is used to run individual binaries, translating their syscalls to the host's. So if there's a problem in the translation or handling of the syscalls related to threading (like pthread_create), that would be a syscall category issue. + +Alternatively, maybe it's a runtime issue, like a memory management problem in QEMU's runtime handling. But segmentation faults are often tied to incorrect memory access, which could be due to a syscall not being properly emulated. For example, if the clone() syscall isn't correctly set up, the threads might not be created properly, leading to invalid memory accesses. + +The original bug report (LP:668799) mentioned is about threading in QEMU, which might relate to this. The user says it's not the same issue, but the problem here is similar. If the issue is about how QEMU handles the syscalls needed for threading, then it's a syscall problem. + +So, the category is likely 'syscall' because the problem arises from the system calls made by the multi-threaded program and how QEMU handles them. The crash is due to incorrect emulation or translation of the necessary syscalls for thread creation and management. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1361 b/results/classifier/qwen3:32b/reasoning/syscall/1361 new file mode 100644 index 00000000..a83e681b --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1361 @@ -0,0 +1,11 @@ +<think> +Okay, let's try to figure out how to categorize this bug report. The user is talking about an issue with QEMU's user-mode emulation for PPC64LE with 64KiB pages. The problem started after upgrading QEMU from version 4.2 to 6.2, specifically when GitHub Actions moved from Ubuntu Focal to Jammy. The error is a SIGSEGV SEGV_MAPERR, even though the address should be mapped based on the mmap call. + +Looking at the details, the user mentions that the test case fails with a segmentation fault, but the address in question was supposed to be mapped via an mmap call. The key here is that the mmap syscall was used to map a region, but the program still gets a segmentation fault when accessing that address. The user also points to a specific commit where the breakage was first observed, but they think that commit might just expose an existing bug. + +So, the problem seems to be that the mmap syscall isn't correctly setting up the memory mapping in QEMU's emulation. If the mmap syscall is not working as expected, then this would fall under a syscall category. However, the error is happening at runtime when accessing the memory, which might make someone think it's a runtime issue. But since the root cause seems to be related to how the syscall (mmap) is handled by QEMU, leading to the memory not being properly mapped, this is likely a syscall issue. The runtime error is a symptom caused by a faulty syscall handling. + +Alternatively, if the problem were in the execution of an instruction (like a wrong instruction being emulated), it would be an 'instruction' category. But there's no mention of specific instructions being incorrect here. The problem is about memory mapping not being correctly handled by the syscall, leading to a runtime error. However, the category options here are instruction, syscall, or runtime. Since the error is due to the syscall not setting up memory correctly, I think 'syscall' is the right category. The 'runtime' category is for other runtime errors not related to syscalls, but here the syscall's behavior is at fault. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1394 b/results/classifier/qwen3:32b/reasoning/syscall/1394 new file mode 100644 index 00000000..2af86a94 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1394 @@ -0,0 +1,17 @@ +<think> +Okay, let's try to figure out what category this bug belongs to. The issue is about byte-swapping when using getresuid on qemu-user-sparc64. The problem occurs when running in a big-endian SPARC64 guest. The UID values are written with their 16-bit halves reversed. For example, UID 0x000003e8 becomes 0x03e80000. + +First, I need to recall what getresuid does. It retrieves the real, effective, and saved user IDs of the calling process. The function itself is part of the system call interface, so it's likely that the problem is related to how the system call is handled in the user-mode emulator (qemu-user). + +The user mentioned that the problem doesn't occur outside QEMU, so it's specific to the QEMU environment. The question is whether this is an instruction issue, a syscall issue, or a runtime error. + +Instruction-related issues would involve incorrect execution of specific CPU instructions. Since SPARC is big-endian, but QEMU might be emulating the endianness incorrectly for certain operations. However, the problem here seems to be with how data is passed through a system call. The getresuid function is a system call, and the byte-swapping issue suggests that the data returned by the system call is not properly handled in terms of endianness. + +QEMU's user-mode emulation is responsible for translating system calls from the guest architecture to the host's system calls. If there's a mistake in how the arguments or return values are converted, especially for data types like uid_t, that could lead to byte-order issues. Since SPARC64 is big-endian, and the host (where QEMU runs) might be little-endian (like x86-64), QEMU should handle the endianness conversion. If that conversion is incorrect for the system call's return values or arguments, it would result in the observed byte-swapping problem. + +Runtime errors typically refer to issues during program execution not directly tied to system calls or instructions, such as memory management or library functions. However, in this case, the problem is specifically tied to the system call interface between the emulated process and the host kernel. Therefore, it's more likely a syscall issue because it's about how system calls handle data across different endianness. + +So, the category should be "syscall" because the error is in how QEMU handles the system call's data conversion between the guest's endianness and the host's. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/140 b/results/classifier/qwen3:32b/reasoning/syscall/140 new file mode 100644 index 00000000..58cd4e70 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/140 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an issue with the clone() function in a Linux user mode QEMU setup. The problem is that it can't handle glibc's posix_spawn(), which causes locale-gen to assert. Hmm. + +First, I need to figure out what's going on here. The clone() system call is used for creating new processes, right? And posix_spawn() is a function in the C library that's supposed to spawn a new process. So if clone() isn't working properly with posix_spawn(), that could be a compatibility issue between QEMU's implementation of clone and what glibc expects from it. + +The user mentioned that this causes locale-gen to assert. Assertions usually indicate that some assumption in the code was violated. So maybe during the execution of locale-gen, when it tries to use posix_spawn(), the clone() function in QEMU isn't providing the necessary environment or resources, leading to that assertion failure. + +Now, looking at the possible categories: instruction, syscall, runtime. Instruction errors are about faulty assembly instructions. Syscall would be issues with system calls. Runtime is other runtime errors. Since clone() is a system call, and the problem is that QEMU's clone isn't handling the posix_spawn() correctly, this seems like a syscall issue. The problem is in the system call handling within QEMU, specifically with clone() not supporting what glibc's posix_spawn() requires. So the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1416988 b/results/classifier/qwen3:32b/reasoning/syscall/1416988 new file mode 100644 index 00000000..73916017 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1416988 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an issue with qemu-aarch64 where certain tests fail due to a segmentation fault or infinite loops. The problem is traced back to an ABI incompatibility between the Linux Kernel and QEMU, specifically the size discrepancy of the siginfo structure. + +Looking into the details, the user points out that the TARGET_SI_PAD_SIZE in QEMU's syscall_defs.h is calculated differently than the Linux Kernel's SI_PAD_SIZE. The QEMU definition uses TARGET_SI_MAX_SIZE divided by the size of int minus 3, while the kernel's version subtracts the __ARCH_SI_PREAMBLE_SIZE (which is 4 * sizeof(int) for AArch64) from SI_MAX_SIZE and then divides by the size of int. + +This suggests that the issue is related to how QEMU is handling the signal information structure, which is part of the system call interface between the user space and the kernel. Since the structure size is different, when a signal is delivered, QEMU might be reading or writing the siginfo structure incorrectly, leading to crashes or infinite loops during stack unwinding, especially when exceptions are involved. + +The problem is not with a specific syscall but rather with the structure that's used during syscall handling for signals. However, since the issue stems from the definition of a structure that's part of the system call's data structures, this would fall under syscall handling. The incorrect padding size affects how QEMU interprets the signal information passed during syscalls, leading to the observed runtime errors. So the category here is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1457275 b/results/classifier/qwen3:32b/reasoning/syscall/1457275 new file mode 100644 index 00000000..d1593898 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1457275 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user provided a bug report that's part of QEMU. They want me to classify it into one of three categories: instruction, syscall, or runtime. + +Looking at the data given, it seems to be a series of system calls related to memory mapping. There are a bunch of mmap and munmap calls with various addresses and sizes. The error mentioned here is "Invalid argument" when trying to create a thread, which is part of the QEMU process. + +The key part here is the error message: "Invalid argument" when creating a thread. The thread creation in QEMU might be failing due to some issue with the system calls involved. The mmap and munmap are system calls used for memory management. The problem might be that the arguments passed to these syscalls are incorrect, leading to the failure when QEMU tries to create a new thread. + +The instruction category is about faulty instructions, like incorrect CPU instructions. But here, the issue seems to be at the system call level. The runtime category is for other runtime errors, but since the error is directly related to a syscall (mmap/munmap) failing with an invalid argument, it's more likely a syscall issue. + +So the classification should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1462640 b/results/classifier/qwen3:32b/reasoning/syscall/1462640 new file mode 100644 index 00000000..c3807b11 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1462640 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is talking about a problem with shmat failing when running a 32-bit MIPS program on a 64-bit x86 host using QEMU. They did some investigation and created a minimal example that reproduces the issue when compiled with -m32. The problem seems to be related to mmap flags. Specifically, QEMU's 32-bit user mode is reserving the entire guest virtual address space with MAP_PRIVATE, and when shmat is called, it tries to use MAP_SHARED for a part of that region, which causes a conflict. The user suggests that unmapping the shared memory region before calling shmat might fix it. + +So, the question is to classify this bug into one of the categories: instruction, syscall, or runtime. + +First, let's recall the categories. Instruction would be if there's a wrong CPU instruction being executed. Syscall would be an issue with the system call handling. Runtime refers to other errors during execution that aren't specifically about syscalls or instructions. + +In this case, the problem is with the shmat system call. The issue arises because the mmap flags are set to MAP_PRIVATE, and shmat is attempting to use MAP_SHARED on the same region. The problem is in how the system call (shmat) is being handled, particularly in the context of the mmap setup by QEMU for 32-bit emulation. The system call's behavior is affected by the way memory is mapped, which is part of the system call handling mechanism in QEMU. Therefore, this seems to be a syscall category issue. The runtime category is more for other kinds of errors during execution, like memory management issues not directly tied to system calls. Since the problem is specifically with the shmat syscall and how mmap flags are managed in the syscall handling, the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1470170 b/results/classifier/qwen3:32b/reasoning/syscall/1470170 new file mode 100644 index 00000000..8323fbad --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1470170 @@ -0,0 +1,14 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU's usermode arm where syscalls 370 and 355 are unsupported. They mention that when running a Debian sid armhf container with systemd-nspawn, there are errors related to these syscalls. The output shows QEMU printing "Unsupported syscall: 370" multiple times and then "Unsupported syscall: 355", leading to a failure in allocating the manager object. + +First, I need to classify this bug report into one of the given categories: instruction, syscall, or runtime. The problem here is clearly about syscalls not being supported. The error messages directly mention unsupported syscalls by number (370 and 355). The user is pointing out that QEMU is missing these syscalls, which are used by systemd or another package. + +The categories are: +- instruction: if the bug is about a faulty instruction. +- syscall: if it's an error with a syscall. +- runtime: other runtime errors. + +Since the issue is specifically about QEMU not supporting certain syscalls, which are system call numbers that the guest OS is trying to use, this falls under the 'syscall' category. The errors are happening because QEMU's user-mode emulation doesn't implement these syscalls, leading to the failures. The runtime category is for other runtime issues, but here the core problem is the syscall support. Therefore, the correct classification is 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1516408 b/results/classifier/qwen3:32b/reasoning/syscall/1516408 new file mode 100644 index 00000000..03ad4ad6 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1516408 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU where it's throwing an "Unsupported syscall: 186" error when trying to install Python 3.4 in an sh4 chroot environment. They checked the source code and found that syscall 186, which is TARGET_NR_sigaltstack, isn't implemented for sh4. The code has a conditional that enables sigaltstack handling for certain architectures but not sh4. + +The question is asking to classify this bug report into one of three categories: instruction, syscall, or runtime. The main issue here is about a syscall not being supported. The user is specifically pointing out that the syscall number 186 (sigaltstack) isn't implemented for the sh4 architecture in QEMU. The problem arises during the execution of the syscall, which QEMU can't handle, leading to the error message. + +Since the bug is directly related to a syscall not being implemented for a specific architecture, the correct category should be "syscall". The other categories don't fit here. It's not about a faulty instruction (instruction category) or a general runtime error (runtime category). The core of the issue is the absence of support for a particular syscall on the sh4 target in QEMU. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1519037 b/results/classifier/qwen3:32b/reasoning/syscall/1519037 new file mode 100644 index 00000000..3b132872 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1519037 @@ -0,0 +1,23 @@ +<think> +Okay, let's see. The user is having a problem where qemu-i386 is causing segfaults on a 32-bit Linux system. They mention that the segfaults disappear when running under gdb or strace. Interesting. The user is asking for help to figure out the cause and wants to classify the bug into one of the given categories: instruction, syscall, or runtime. + +First, I need to recall what each category means. Instruction would be something wrong with how the instructions are handled, like incorrect emulation. Syscall would be issues with system calls made by the program. Runtime is other runtime errors not covered by those two. + +The key clue here is that the segfaults go away when using gdb or strace. That's a common symptom related to something called the "ptrace" system call. Both gdb and strace use ptrace to attach to processes. When a program is run under ptrace, some behaviors can change. For example, some programs or libraries might detect that they're being traced, or there might be timing differences. However, in the context of QEMU, maybe the problem is related to how QEMU interacts with the host's system calls when not being traced. + +Wait, QEMU uses dynamic translation, and when running in user-mode (like qemu-i386), it has to handle system calls from the guest (32-bit) to the host (which might be 64-bit or 32-bit). If there's a problem with how the system calls are being made or handled, that could lead to a segfault. But why would that happen only when not using gdb/strace? + +Another angle: sometimes, when a program segfaults, it's because of a race condition or a signal handling issue. When running under gdb or strace, the timing changes, which might prevent the race condition. Alternatively, maybe QEMU is not properly handling signals in certain cases when not being traced. But signals are part of the runtime environment. + +Wait, but the user says that qemu-x86_64 works fine. So the problem is specific to the 32-bit emulator. Maybe there's an issue with how the 32-bit system calls are being made on a 64-bit host. For example, if the host is 64-bit and the user is trying to run 32-bit binaries with qemu-i386, there might be some compatibility layers or library issues. However, the user mentions it's a 32-bit Linux, so maybe the host is 32-bit? Wait, the user says "32-bit linux trying to run binaries using qemu-i386 from git". Wait, that's confusing. If the host is 32-bit, why use qemu-i386? Maybe they are trying to run 32-bit binaries natively, but perhaps there's a problem with the QEMU build from git. Or maybe the host is 64-bit, and they're trying to run 32-bit binaries with qemu-i386, but that's a different scenario. + +But regardless, the key is that the segfaults disappear under gdb/strace. This is often related to something called the "vfork" system call or other system call handling. When a process is being traced, the kernel might handle certain system calls differently. For example, some programs use vfork, and if the child process does an exec, but there's a bug in how the parent handles it. However, when traced, the parent might not be starved of CPU time, so the issue doesn't occur. + +Another possibility is that the QEMU binary itself is not properly handling certain system calls when not being traced. For instance, if there's a missing or incorrect system call handler in the 32-bit QEMU, causing a segfault when the guest program makes that call. But when under strace, the system call is intercepted by strace, so QEMU might not be involved in handling it, thus avoiding the segfault. + +Given that, this seems like a system call handling issue. The fact that the problem disappears when using strace (which traces system calls) suggests that the presence of tracing changes the behavior, possibly because the system call is handled by strace instead of QEMU, or because the tracing affects how the system calls are made or handled. + +Therefore, the category would be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1563612 b/results/classifier/qwen3:32b/reasoning/syscall/1563612 new file mode 100644 index 00000000..1369319f --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1563612 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is reporting that pulseaudio applications crash when run under qemu-i386 or qemu-x86_64 on Debian 8.0. The test program they provided uses pulseaudio's simple API to create a stream and write some data. When running natively, it works without output or errors, but under QEMU, it segfaults. The user mentions they think it's related to futex and observed an assertion failure in pa_mutex_unlock when debugging pulseaudio. + +First, I need to figure out what category this fits into: instruction, syscall, or runtime. The user suspects futex, which is a system call used for thread synchronization. The segmentation fault occurs in QEMU, which is an emulator. The problem seems to be when the application uses pulseaudio under QEMU. The assertion in pa_mutex_unlock suggests an issue with mutex operations, which are typically handled via system calls like futex. Since QEMU has to emulate system calls for threading, there might be a problem there. The user's mention of futex and the syscall-related nature of mutex operations points towards a syscall issue. The crash is due to an unhandled signal (SIGSEGV) during a system call emulation. Therefore, this is likely a syscall-related bug in QEMU. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1585840 b/results/classifier/qwen3:32b/reasoning/syscall/1585840 new file mode 100644 index 00000000..f759632b --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1585840 @@ -0,0 +1,17 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU's arm-linux-user where a multiprocess program gives incorrect results. The problem doesn't happen on real hardware or standard Linux, but only under QEMU. The key part is that the test uses shared memory with mutexes and atomic operations, and the failure is suspected to be due to improper support for atomic operations in the multiprocess model. + +So, the question is to classify this bug into one of the three categories: instruction, syscall, or runtime. + +First, "instruction" would mean that QEMU is executing the wrong CPU instructions for ARM. But the problem here seems related to system calls or how they're handled in user-mode emulation. The user mentions shared memory and mutexes, which typically involve system calls like shmget, shmat, and operations on semaphores or mutexes (maybe using syscalls like futex). + +If the issue is with how QEMU handles atomic operations across multiple processes, that might relate to how system calls are emulated. For example, if the syscall for a mutex operation isn't properly synchronized between processes in QEMU's user-mode, leading to race conditions or incorrect behavior. That would fall under "syscall" category. + +Alternatively, "runtime" is for other runtime errors. But since the problem seems to be in the system call handling specific to QEMU's emulation of ARM in user-mode, especially for multi-process scenarios, the syscall category seems more appropriate. + +The user also mentions that atomic operations might not be properly supported in the multiprocess model under QEMU. Atomic operations are often handled via specific instructions, but when dealing with system calls (like those involving synchronization primitives), the emulation might not correctly handle the inter-process communication or the system call semantics. + +So, the root cause is likely in how QEMU's user-mode emulation handles the necessary syscalls for process synchronization. Hence, the category should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1591611 b/results/classifier/qwen3:32b/reasoning/syscall/1591611 new file mode 100644 index 00000000..4e7b9fe0 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1591611 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is trying to use qemu-x86_64-static on a ppc64el host to chroot into an amd64 environment, but commands are failing with an assertion error. The error message mentions something about __libc_fork and an assertion in fork.c. The error seems to be happening when they try to run commands like ls or cat, but bash builtins like echo work. + +Hmm, the assertion failure is in the __libc_fork function. That suggests that when the chroot environment is trying to fork a new process, something is going wrong. The error message has assembly code that's trying to access thread-local storage, specifically using FS register operations. But on ppc64el, the architecture is different, so maybe QEMU isn't correctly emulating the necessary parts for the x86_64 binary's fork system call? + +The user mentioned that the host has multiformat support, so maybe the kernel can handle the system calls, but QEMU isn't properly translating or handling the specific architecture's thread-local storage access. The error in the assertion seems to be that the child process's thread ID (tid) is equal to the parent's PID (ppid), which shouldn't be the case. That might be because QEMU isn't correctly setting up the thread structures for the emulated x86_64 environment, leading to the fork() not working as expected. + +Since the problem is happening during the execution of system calls related to process creation (fork), and the error is in the libc's fork implementation, this seems like a syscall issue. The QEMU emulator might not be correctly intercepting or handling the fork syscall for the x86_64 binary on a ppc64el host. The segmentation fault and the assertion failure point to a problem in the system call handling during the fork process. So the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1594394 b/results/classifier/qwen3:32b/reasoning/syscall/1594394 new file mode 100644 index 00000000..ef24b9ab --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1594394 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting a bug in QEMU where using setreuid or setegid causes a crash in user-mode for x86_64 targets. The backtrace shows a segmentation fault in the sighandler_setxid function. The problem seems to be related to the NPTL signal handlers and the __xidcmd variable being null. + +Hmm, the x86 target doesn't use a direct syscall for these functions but instead uses a signal (SIGRT1) to handle them. The issue here is that under QEMU, __xidcmd remains null, leading to a crash when the signal handler tries to access it. + +So, the core of the problem is how QEMU handles the syscalls or the signal handling for these specific functions. Since setreuid and setegid are system calls, and the problem arises from how QEMU translates or emulates these syscalls in user-mode, especially involving the signal-based handling on x86, this seems to be a syscall-related issue. The crash is happening during the syscall emulation, specifically when the signal handler is invoked and expects __xidcmd to be set, but it's not. + +Therefore, this should be categorized under 'syscall' because it's about the incorrect handling or emulation of a system call in QEMU's user-mode environment. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1605443 b/results/classifier/qwen3:32b/reasoning/syscall/1605443 new file mode 100644 index 00000000..82cc2388 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1605443 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU's epoll functionality when running i386-linux-user on an ARM host, specifically between versions 2.5.1 and 2.6. They identified a commit that caused the problem and reverted it to fix epoll. + +First, I need to classify this bug into one of the three categories: instruction, syscall, or runtime. The problem is related to epoll, which is a system call in Linux used for I/O event notification. The user mentioned that reverting a specific commit fixed the issue, which suggests that the commit introduced a change affecting how epoll is handled. + +Since epoll involves system calls, I might think it's a syscall issue. However, the problem arises in the QEMU user-mode emulation, which translates host syscalls to target syscalls. If the commit altered how syscalls are intercepted or handled for the i386 target on an ARM host, that could be a syscall category issue. But the user says that reverting the commit fixed epoll, implying that the commit introduced a bug in the syscall handling specific to that setup. + +Alternatively, runtime errors are other runtime issues not covered by instruction or syscall. But since epoll is directly tied to system calls, and the problem is with the syscall interface in QEMU's translation layer, this seems like a syscall category problem. The instruction category is for faulty CPU instructions, which doesn't fit here. So the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1617929 b/results/classifier/qwen3:32b/reasoning/syscall/1617929 new file mode 100644 index 00000000..1da4cb1b --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1617929 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is reporting that QEMU is hanging in the pselect syscall. They provided a backtrace from GDB and some strace logs. The backtrace shows that the hang is happening in the safe_pselect6 function within QEMU's syscall handling code. The strace output shows that the process is stuck in pselect6, which aligns with the GDB backtrace. + +Looking at the categories given: instruction, syscall, or runtime. The issue is directly related to a syscall, specifically pselect6. The problem isn't about an incorrect instruction (like an invalid opcode or something), but rather that the syscall is hanging. So it's not an instruction error. The runtime category is for other runtime errors, but since the problem is specifically with a syscall (pselect), the correct category here would be syscall. The user is experiencing an issue where the syscall isn't returning as expected, leading to QEMU hanging. Therefore, the classification should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1619896 b/results/classifier/qwen3:32b/reasoning/syscall/1619896 new file mode 100644 index 00000000..713131d2 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1619896 @@ -0,0 +1,9 @@ +<think> +Okay, let's try to figure out the category for this QEMU bug report. The user is running a Teamspeak server on ARM using QEMU to emulate x86. The main issue is about "Unsupported ancillary data: 0/8" which comes from QEMU's linux-user/syscall.c. + +Ancillary data is part of socket programming, specifically when using ancillary messages with sendmsg/recvmsg. The error suggests that QEMU's user-mode emulation doesn't support a particular type of ancillary data, probably related to IP_PKTINFO. The user mentioned the cmsg (which is control messages in sockets) and the error occurs when a second client connects, leading to connection drops. + +Since this error is related to a system call (probably sendmsg or recvmsg) where the QEMU emulator doesn't handle the ancillary data correctly, it's a syscall issue. The problem isn't with the instruction set emulation but with how a specific syscall is handled. The error message points directly to QEMU's syscall handling code. So the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1623020 b/results/classifier/qwen3:32b/reasoning/syscall/1623020 new file mode 100644 index 00000000..d7f8723c --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1623020 @@ -0,0 +1,17 @@ +<think> +Okay, let's try to figure out what's going on here. The user is trying to run an AMD64 binary on an ARM7 host using QEMU. The error messages mention things like "bad timediv" and "runtime: panic before malloc heap initialized". + +First, I need to recall how QEMU user-mode emulation works. It allows running binaries for different architectures on the host without a full system emulation. But there might be limitations, especially with certain system calls or CPU features. + +Looking at the error output, the key part is "bad timediv". The 'timediv' is a system call used by some programs to get the system's time. But wait, the user is using QEMU's user-mode emulation. Maybe the ARM host's kernel doesn't support the 'timediv' system call that the x86 binary is trying to use through QEMU. However, the error here is coming from the Go runtime, which suggests that the problem might be related to how the Go program initializes. + +The Go runtime needs to set up the heap and stack properly. The message "panic before malloc heap initialized" implies that the Go runtime couldn't initialize its memory structures. This could be due to a missing or incorrect system call during the startup process. QEMU might not be correctly emulating a specific system call that the Go runtime relies on for setting up memory. + +Another angle: the user compiled QEMU with --static, which might include all necessary libraries, but maybe some system call handling is missing. The 'strace' output shows that the program is making calls like arch_prctl and select, which are related to process control and I/O multiplexing. The 'select' system call returning "Bad address" might indicate that the arguments passed by QEMU to the host's system call are incorrect. However, since QEMU is emulating the system calls, maybe it's translating them incorrectly for the ARM environment. + +Wait, the error "bad timediv" is a system call that's specific to some architectures. For example, on ARM, the 'timediv' system call might not exist, and QEMU might be translating an x86 system call into an ARM one incorrectly. If the x86 binary is making a system call that QEMU can't map to the ARM host's equivalent, that would cause a failure. In this case, the Go runtime might be using a system call that's available on x86 but not on ARM, and QEMU isn't handling that translation properly. + +So the problem here is likely a syscall issue. The QEMU emulator isn't correctly handling a specific system call required by the Go program, leading to the runtime errors. The 'timediv' error is a syscall-related problem, and the subsequent heap initialization failure is a result of that. Therefore, the category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1643619 b/results/classifier/qwen3:32b/reasoning/syscall/1643619 new file mode 100644 index 00000000..7bb52cc0 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1643619 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is reporting an issue with netlink being broken on big-endian MIPS when using qemu-user. The problem causes 'ip route' to hang, and the strace shows that the sendto call has a byteswapped len field. They mention that removing fd_trans_unregister in the NR_socket syscall fixes it, but they're unsure why it was there. + +Hmm, the key part here is the syscall handling for NR_socket. The code in do_syscall for TARGET_NR_socket calls do_socket and then immediately unregisters the fd translation. The user modified that by commenting out the fd_trans_unregister line, which fixed the issue. + +So, the problem seems to be related to how file descriptors are being translated or managed during the socket syscall. The fact that the len is byteswapped suggests that there's an endianness issue, possibly due to incorrect handling of the data structures involved in the syscall. Since the fd translation is being unregistered right after the socket is created, maybe the translation is needed for subsequent operations on that socket, like sending or receiving data. Without the translation, the kernel might not be handling the endianness correctly, leading to the byteswapped value. + +The root cause likely lies in the syscall handling for socket, specifically the management of file descriptor translations. The fd_trans_unregister is part of the QEMU's mechanism to handle file descriptors between the target (MIPS) and host (probably x86_64). If the translation is unregistered too early, the subsequent syscalls (like sendto, recvmsg) might not have the correct translation, leading to incorrect data being passed, such as the byteswapped len field. + +Therefore, this is a syscall-related issue. The problem arises from how the syscall is processed, specifically the handling of file descriptor translations after the socket is created. The error isn't in the instruction set or runtime environment but in the syscall's implementation in QEMU. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1667401 b/results/classifier/qwen3:32b/reasoning/syscall/1667401 new file mode 100644 index 00000000..b7c693d1 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1667401 @@ -0,0 +1,15 @@ +<think> +Okay, let's try to figure out the category for this QEMU bug. The user says that when running a PowerPC binary under qemu-ppc on x86-64, creating a pthread leads to a segfault. The error messages mention an assertion failure in translate-all.c related to tb_lock. + +First, looking at the problem: the program uses pthread_create, which involves creating a new thread. The strace output shows two clone() system calls. The second one fails with EINVAL (invalid argument). The first clone call succeeds, but the second one, which might be related to thread creation, is failing. + +The key here is that the issue occurs during thread creation. The clone() system call is used by pthreads to create new threads. The error in the second clone suggests that the arguments passed are invalid. But why would that happen in QEMU? + +QEMU emulates the system calls for the target architecture. So when the PowerPC binary calls clone(), QEMU translates that into the appropriate system call on the host (x86_64). However, there might be a problem in how QEMU handles the clone() arguments for PowerPC, leading to an invalid argument being passed on the host side. + +Since the problem is specifically with the system call (clone()) and the arguments being passed, this seems like a syscall issue. The assertion failure in QEMU's translate-all.c might be a symptom of incorrect handling of the system call, possibly due to incorrect argument translation or threading support in the emulator. + +The runtime category is for errors that occur during runtime but not specifically related to syscalls. Since this seems tied directly to the clone() syscall and its arguments, the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1673976 b/results/classifier/qwen3:32b/reasoning/syscall/1673976 new file mode 100644 index 00000000..a39c3317 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1673976 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is having an issue with locale-gen crashing when run inside an ARM chroot on their x86_64 system using qemu-arm-static. The error message mentions an assertion failure in __spawnix with the condition `ec >= 0`. The core dump happens when qemu catches a signal 6 (Aborted). They think this might have started after updating QEMU to version 2.8. + +Hmm, the problem is related to the clone() system call not handling glibc's posix_spawn(), which is causing locale-gen to assert. The key part here is the interaction between QEMU's system call handling and the glibc function. Since the error is during the execution of a system call (specifically clone() used by posix_spawn), this would fall under a syscall issue. The assertion failure is triggered because the system call (clone) isn't being properly emulated or handled by QEMU, leading to incorrect error codes. So the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1689367 b/results/classifier/qwen3:32b/reasoning/syscall/1689367 new file mode 100644 index 00000000..6240e47e --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1689367 @@ -0,0 +1,9 @@ +<think> +Okay, let's try to figure out how to classify this bug report. The user is running an ARMv7 QEMU chroot on an x86_64 host and seeing "Unsupported syscall: 384" messages. They mentioned that syscall 384 is related to sys_getrandom, which is the getrandom system call. + +The problem here is that QEMU, when emulating an ARM environment, doesn't support the getrandom syscall. The user is getting these messages during compile activities, but it's not causing any actual issues yet. The IRC chat suggests that the syscall is present in the ARM syscall table, so maybe QEMU isn't handling it properly. + +The possible categories are instruction, syscall, or runtime. Since the error is specifically about an unsupported syscall, it seems like it should be a syscall category. The issue isn't about a faulty instruction but rather QEMU not handling a specific system call. Runtime errors are for other issues during execution, but the key here is the syscall support. So I think the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1696353 b/results/classifier/qwen3:32b/reasoning/syscall/1696353 new file mode 100644 index 00000000..2ccc7b9e --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1696353 @@ -0,0 +1,11 @@ +<think> +Okay, let's try to figure out how to classify this bug report. The user is saying that Go binaries fail to start under qemu's linux-user mode. The error message mentions a failure to create a new OS thread, with an error number 22, which is EINVAL (invalid argument). The stack trace points to the Go runtime's newosproc function, which uses the clone system call. + +Looking at the Go source code mentioned, in os_linux.go, the clone flags are set. The user mentions that the CLONE_SYSVMEM flag is missing. The patch provided probably adds this flag. + +The issue seems to be that without CLONE_SYSVMEM, the clone system call is failing. This flag is necessary for certain memory sharing between the parent and child processes, especially in environments like QEMU's user-mode emulation. Since the problem is related to the flags passed to the clone system call, which is a system call, this would be a syscall issue. + +The error isn't about the program's logic or instructions but about how the system call is being made incorrectly. The runtime is involved, but the specific problem is with the syscall parameters. So the category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1696773 b/results/classifier/qwen3:32b/reasoning/syscall/1696773 new file mode 100644 index 00000000..34fca476 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1696773 @@ -0,0 +1,19 @@ +<think> +Okay, let's see. The user provided a bug report about a Go program that crashes under ARM user emulation with QEMU. The example code starts a goroutine and calls exec repeatedly. It works natively but segfaults under QEMU's ARM emulation. The task is to classify the bug into one of the categories: instruction, syscall, or runtime. + +First, I need to understand what's happening here. The Go program uses exec, which in Unix-like systems is a system call that replaces the current process image with a new one. The problem occurs under QEMU's user-mode emulation, which emulates a different architecture (ARM here) for running binaries without virtualization. + +The bug report says that when running this code under ARM emulation, it segfaults. The user mentions that this works okay natively but not under QEMU. So the issue is specific to QEMU's emulation environment. + +Now, considering the categories. The "instruction" category is for faulty instructions. That would be if the program is executing an invalid or unsupported instruction, leading to a crash. But the problem here seems to be related to the emulation of system calls or how the environment is managed, not the CPU instructions themselves. + +"Syscall" category is for errors with a system call. Since exec is a system call, maybe QEMU is mishandling the exec syscall during emulation. The program is making repeated exec calls, which might expose a bug in how QEMU handles the syscall in user-mode emulation. For example, maybe QEMU isn't properly restoring state after the syscall, or there's a race condition when multiple threads are making syscalls. + +"Runtime" errors are other errors in the runtime. That could be memory management, threading issues, etc. However, the problem here is under QEMU's emulation, which is part of the system call handling. The Go runtime is just using standard syscalls, so it's more likely a QEMU issue with syscall handling. + +In the example, the problem occurs under ARM user emulation. QEMU's user-mode emulation has to interpose on syscalls and emulate them for the target architecture. If there's a bug in how a particular syscall (like exec) is handled, especially under high frequency or multi-threaded scenarios, that would fall under the syscall category. The fact that the issue doesn't happen natively suggests that the problem is in the emulation layer's handling of the syscall, not the actual kernel's implementation. + +Also, segfaults can be caused by incorrect memory management, but in this case, since it's a syscall-related issue (exec), the root cause is likely in how QEMU translates or handles the syscall for ARM user-mode. So the correct category here would be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1701808 b/results/classifier/qwen3:32b/reasoning/syscall/1701808 new file mode 100644 index 00000000..3cb2f1e4 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1701808 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting a stack smashing issue when using the recvmsg system call in QEMU's aarch64 user mode. The problem doesn't occur on native hardware. They mention that adding extra space (like 9 bytes or more) to the buffer makes it work in QEMU. So, the issue seems related to how QEMU handles the recvmsg syscall compared to real hardware. + +Stack smashing usually indicates a buffer overflow, but here the program works natively, which suggests that the overflow isn't in the user's code but maybe in how QEMU emulates the syscall. The fact that increasing the buffer size fixes it in QEMU implies that QEMU's recvmsg might be writing more data than expected. That could be a syscall emulation error. + +The categories are instruction, syscall, or runtime. Since the problem is tied specifically to the recvmsg system call and how QEMU handles it, the most likely category is 'syscall'. The issue isn't about an incorrect instruction (which would be 'instruction') but rather the system call's behavior in the emulator. Runtime errors are more general, but here it's specifically about a syscall's incorrect handling leading to the stack smashing detection. So the answer should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1701971 b/results/classifier/qwen3:32b/reasoning/syscall/1701971 new file mode 100644 index 00000000..cedf1181 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1701971 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting an issue with multithreading in QEMU's user mode when running on SH4. The problem is that after a thread terminates and calls pthread_join, the program hangs. They provided a test case that works on other architectures but not on SH4 with QEMU 2.9.0. + +Looking at the GDB stack traces, the threads are stuck in safe_futex or do_futex calls. Futexes are used by pthreads for synchronization, so this suggests a problem with how futex syscalls are handled in QEMU for SH4. The safe_futex function is part of QEMU's syscall emulation. The arguments passed to do_futex might not be correctly translated or handled for SH4, leading to the hang. + +The user mentioned that the same code works on other architectures under QEMU, which implies that the issue is specific to the SH4 target in QEMU. Since the problem is in the syscall handling (specifically futex), this would fall under the 'syscall' category. The runtime category is for other runtime errors, but here the core issue seems to be in the syscall emulation. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1701973 b/results/classifier/qwen3:32b/reasoning/syscall/1701973 new file mode 100644 index 00000000..b21298d0 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1701973 @@ -0,0 +1,9 @@ +<think> +Okay, let's look at this bug report. The user says that the pread system call isn't working correctly under qemu-sh4 version 2.9.0. The problem occurs in a specific test program. When they run it, the expected output is ret=1 errno=0, but the actual output is ret=0 errno=2, leading to an assertion failure and a core dump. + +The key here is that the issue is with the pread system call. The user provided steps to reproduce, and the problem is specifically related to how qemu-sh4 handles this syscall. The error code 2 corresponds to ENOENT, which usually means "No such file or directory," but in this context, it's probably indicating that the pread call isn't functioning as expected within the emulator. + +Since the bug is categorized as part of QEMU, and the possible categories are instruction, syscall, or runtime. The problem is directly related to a system call (pread) not working correctly in QEMU. So the category should be 'syscall'. The issue isn't about an incorrect instruction (which would be low-level CPU emulation) but rather how the system call is handled by QEMU's emulation layer. Runtime errors are more general, but since it's specifically about a syscall's behavior, 'syscall' is the right category. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1701974 b/results/classifier/qwen3:32b/reasoning/syscall/1701974 new file mode 100644 index 00000000..4c71c058 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1701974 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is reporting an issue with the pwrite system call not working correctly under qemu-sh4 version 2.9.0. The problem is that when they use pwrite to write to a non-zero file position, it doesn't have any effect. The test program expects the buffer to have certain data after the pwrite, but it's not changing, leading to an assertion failure. + +First, I need to figure out what category this falls into. The options are instruction, syscall, or runtime. The bug seems to be related to the pwrite system call. Since pwrite is a syscall, and the issue is that it's not working as expected in QEMU's emulation, this would point to a syscall category. The problem isn't about an incorrect instruction (which would be more about CPU emulation), but rather how the syscall is handled by QEMU. The user is saying that the syscall isn't functioning properly when used in a specific way (non-zero offset). So, the error is in the syscall handling within QEMU. Runtime errors are more about things like memory management or program execution issues not directly tied to syscalls. Since this is specifically about a syscall not working, the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1707 b/results/classifier/qwen3:32b/reasoning/syscall/1707 new file mode 100644 index 00000000..a142ab08 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1707 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is reporting an issue where QEMU's linux-user mode can't execute an x86_64 binary on an aarch64 or LoongArch host. The problem started after a specific commit related to fixing the brk() system call to release pages. The steps involve building a static hello.c with x86_64 cross-compiler, building QEMU, and then running it, but there's no output. + +Looking at the categories: instruction, syscall, or runtime. The commit in question is about brk(), which is a system call related to memory management. The issue seems to be that the fix for brk() might have introduced a problem where the program isn't running correctly, possibly due to how memory is handled. Since brk() is a syscall and the problem is tied to that commit, this is likely a syscall issue. The strace output would show system call-related errors, like failure to allocate memory or execute the program properly. So the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1716292 b/results/classifier/qwen3:32b/reasoning/syscall/1716292 new file mode 100644 index 00000000..4b68d4cc --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1716292 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting that QEMU's user mode emulation is returning -1 for a write syscall with NULL and 0 length, but on actual Linux it returns 0. The problem is specifically about the write() system call's behavior. + +So, the main issue here is how the syscall is handled in QEMU. The write syscall with a zero-length buffer and NULL pointer. On Linux, writing zero bytes returns 0, which is correct according to POSIX. But QEMU is returning -1, which suggests an error. That's a syscall handling issue. + +The user provided a test case that compiles a simple C program and shows that when run natively, it returns 0, but under QEMU's emulation, it returns -1. This indicates that QEMU's emulation of the write syscall isn't matching the host's behavior. + +So, the category should be syscall because it's about the incorrect handling of a system call in the emulator. The other options are instruction (which would be about CPU instructions) or runtime (other runtime errors). Since this is specifically about the system call's return value, the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1716767 b/results/classifier/qwen3:32b/reasoning/syscall/1716767 new file mode 100644 index 00000000..e5444419 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1716767 @@ -0,0 +1,21 @@ +<think> +Okay, let's try to figure out the category for this bug report. The user is saying that the 'file' command fails with "Invalid argument" when using qemu-sh4-user. The problem occurs when checking an ELF file. They provided some debug output showing that there's an error reading the ELF file. + +First, I need to recall what qemu-sh4-user does. QEMU's user-mode emulation allows running binaries for a different architecture. So when they run 'file /bin/bash' under qemu-sh4-user, it's trying to analyze a SH architecture binary, but perhaps there's an issue with how QEMU is handling the file reading here. + +The error message mentions an "Invalid argument" when reading. The debug output shows some mget calls, which might be related to reading the file's magic numbers or ELF headers. The user also mentions a possible overflow in a comparison. + +The options are instruction, syscall, or runtime. + +Instruction-related bugs involve incorrect CPU instructions. If QEMU was executing the wrong instruction, that would be in this category. But here, the problem seems to be when reading the file, which involves system calls. + +The 'Invalid argument' error is likely coming from a system call failing. For example, if the read() syscall is given invalid parameters, it would return that error. The debug output shows that during the mget (maybe a magic get function), there's a read operation that's failing. + +The user says on actual hardware it works, so the issue is specific to QEMU's user-mode emulation. If QEMU is not correctly emulating a system call that 'file' is using to read the ELF file, that would be a syscall category issue. + +Alternatively, runtime errors are other errors during execution, maybe memory issues or incorrect state. But since the error is directly related to a system call (like read or open) failing with EINVAL, it's probably a syscall problem. + +So the classification here is likely 'syscall' because the error is an invalid argument during a read operation, which is a system call. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1726394 b/results/classifier/qwen3:32b/reasoning/syscall/1726394 new file mode 100644 index 00000000..2be8ebbc --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1726394 @@ -0,0 +1,19 @@ +<think> +Okay, let's see. The user is talking about a bug in QEMU where prctl with PR_SET_SECCOMP and SECCOMP_MODE_FILTER is being passed through unmodified. The third argument is an address to a BPF filter, but it's causing an EFAULT. The problem is that the filter is architecture-specific, so QEMU can't rewrite the addresses. The suggestion is to return an error, maybe EINVAL, but they want something that indicates seccomp isn't supported so those errors can be ignored. + +So, the question is to classify this bug report into one of the three categories: instruction, syscall, or runtime. + +First, I need to recall what each category means. + +Instruction-related bugs are about faulty instructions, like if there's an incorrect CPU instruction being executed or emulated. + +Syscall would be issues related to system calls, like incorrect handling of a system call by QEMU. + +Runtime errors are other errors that occur during the execution of the program that don't fit into the other two categories. + +In this case, the problem is with the prctl system call. QEMU is passing through the prctl call without modifying the arguments, but the third argument (address) is architecture-specific. Since the BPF filter is architecture-specific, QEMU can't handle it and returns an error. This is about how the system call is being handled. The user is saying that the issue arises because QEMU isn't adjusting the syscall's arguments properly, leading to an EFAULT. Therefore, this seems to be a problem with the syscall handling in QEMU. The error occurs because the syscall is being processed incorrectly, so the category would be 'syscall'. + +Wait, but maybe the error is happening at runtime because it's about how QEMU is processing the arguments during execution. However, the classification is about what kind of error it is. Since the root cause is in the handling of a specific system call (prctl) and the arguments passed to it, I think it's a syscall issue. The problem is that QEMU isn't correctly emulating the syscall for the given architecture. So the error is in the syscall handling. Therefore, the correct category is 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1728116 b/results/classifier/qwen3:32b/reasoning/syscall/1728116 new file mode 100644 index 00000000..a8828394 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1728116 @@ -0,0 +1,15 @@ +<think> +Okay, let's see. The user is talking about an issue with QEMU's linux-user mode where /proc/self/auxv is empty. They mention that in older versions like 2.7.1 it worked, but starting from 2.10.1, it's failing. The problem seems to be related to a commit that introduced a change in syscall.c. + +The key part here is the output from the logging they added. The len variable is showing up as 18446744073709551264 and -352. Those numbers look like they could be related to how the value is being interpreted, possibly a sign or size issue. The correct length should be 352, but it's being read as a very large number (which is 0xfffffffffffffd80 in hex, which is -352 in two's complement for a 64-bit system). + +Looking at the code change in the commit, maybe there's a mistake in how the length is calculated or passed. The auxv_len is probably stored as an unsigned value, but if it's being treated as signed somewhere, that could cause issues. For example, if the length is stored as a negative number (like -352) but interpreted as an unsigned, it becomes this huge positive number. However, in the code, they're logging len as both unsigned and signed. The output shows that when printed as unsigned, it's 18446744073709551264 (which is indeed -352 as a signed 64-bit integer), and as signed, it's -352. + +The problem arises because the code is using an unsigned type (abi_ulong) for len, which is correct, but perhaps the way the value is being set in ts->info->auxv_len is incorrect. For instance, if the calculation for auxv_len is done with a subtraction that results in a negative value (due to incorrect order) when it should be positive. For example, if they did (a - b) when it should be (b - a), leading to a negative number being stored in an unsigned variable, which would wrap around to a very large value. Then, when using that len to read, it would read zero bytes because the length is invalid. + +The commit in question (7c4ee5bcc) probably introduced a logic error where the length is being calculated incorrectly, leading to the auxv_len being set to an incorrect value. This would fall under a syscall category because it's related to how the syscall for opening /proc/self/auxv is handled, specifically the data preparation for that syscall. The error is in the handling of the auxiliary vector data during the open syscall, leading to incorrect data being provided to the guest process. + +So the classification here is about a syscall error because it's related to the system call handling in QEMU's user-mode emulation, specifically the open syscall for /proc/self/auxv. The incorrect length causes the file to be empty when read, which is a syscall handling issue. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1729 b/results/classifier/qwen3:32b/reasoning/syscall/1729 new file mode 100644 index 00000000..3328b134 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1729 @@ -0,0 +1,11 @@ +<think> +Okay, let's try to figure out what category this bug report falls into. The user says it's part of QEMU, and we need to classify it as either instruction, syscall, or runtime. + +The problem described is about mremap failing with EFAULT when the address range overlaps with the stack guard. Specifically, when running a 32-bit program on a 64-bit host using qemu-user-static, there's an issue causing a loop in pthread_getattr_np from musl-libc. The code snippet shows a loop that keeps calling mremap until it doesn't return ENOMEM. But when it fails with EFAULT, it's causing an infinite loop. + +The key here is that mremap is a system call. The bug arises because the system call (mremap) is behaving differently than expected, leading to errors. The problem seems to be related to how the system call is handled in the QEMU environment. Since mremap is a syscall, and the issue is about how it's being processed (or not) by QEMU's user-mode emulation, this would be classified under syscall. + +The user mentioned that the error is due to QEMU, so it's not an error in the libc (musl) itself, but how QEMU handles the system call. So the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1734 b/results/classifier/qwen3:32b/reasoning/syscall/1734 new file mode 100644 index 00000000..c945e8aa --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1734 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU version 8.0 where mmap-ing more than 1GB of files fails, but it works in older versions like 6.2. The problem is when running an ARM binary in user mode on Ubuntu 22.04. The example app creates multiple large files and mmaps them, but after a certain size, mmap returns -1. The user suspects it's related to the ELF binary being loaded at 0x40000000, and trying to change that with -B option caused other issues. + +So, the problem is that mmap is failing due to address space exhaustion. The older version allows more than 1GB, but the newer version hits a limit. The user thinks it's because QEMU's default load address is taking up part of the address space. Since mmap is a system call, but in QEMU's user mode, it's emulating the system calls for the target architecture. The issue might be related to how QEMU manages the virtual address space for the target process. If the ELF is loaded at 0x40000000, maybe in version 8.0, there's a change in how the address space is allocated or reserved, causing conflicts when mmap is called for large regions. The fact that changing the base address with -B leads to other problems suggests that there's a change in how QEMU handles address space layout or memory mapping in the newer version. + +So, since the problem is with the mmap system call failing due to address space constraints introduced in QEMU 8.0, this would fall under the syscall category. The issue isn't with the instruction set or runtime errors, but specifically with the system call handling and memory mapping in QEMU's user mode emulation. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1734792 b/results/classifier/qwen3:32b/reasoning/syscall/1734792 new file mode 100644 index 00000000..13941e59 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1734792 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU where the memfd_create syscall isn't supported in user mode. The error message says "qemu: Unsupported syscall: 319". + +First, I need to figure out what category this falls into. The options are instruction, syscall, or runtime. The problem here is that QEMU doesn't implement the memfd_create syscall, which is a system call. The error message specifically mentions an unsupported syscall, so it's directly related to syscall handling. + +The user mentions that the application requires memfd_create and QEMU is failing because it doesn't support it. That's a missing syscall implementation in QEMU's user mode. So the correct category should be 'syscall' because the issue is about a system call not being supported. It's not an instruction error or a general runtime error, but specifically a missing syscall handler. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1738545 b/results/classifier/qwen3:32b/reasoning/syscall/1738545 new file mode 100644 index 00000000..19607991 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1738545 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting that Go binaries panic with "mmap errno 9" when running on qemu-user. The error message mentions mmap and errno 9. I need to figure out what category this falls into: instruction, syscall, or runtime. + +First, errno 9 is "Bad file descriptor." But mmap is a system call. So the error is happening during an mmap system call. The user is using qemu-user, which is user-mode emulation. The problem doesn't occur on real hardware, so it's specific to QEMU's emulation. + +The Go runtime is trying to perform an mmap, which is a syscall. The error suggests that the syscall is failing. Since the issue is with the system call's behavior in QEMU, this would be a syscall-related problem. The runtime is doing the correct thing, but the syscall (mmap) isn't working as expected in QEMU's environment. Therefore, the category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1741 b/results/classifier/qwen3:32b/reasoning/syscall/1741 new file mode 100644 index 00000000..6d0b385a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1741 @@ -0,0 +1,21 @@ +<think> +Okay, I need to figure out which category this QEMU bug report falls into. The commit hash given is 95059f9c313a7fbd7f22e4cdc1977c0393addc7b. The issue is that it breaks some 32-bit architectures in the Linux-user mode on an AMD64 system. + +Hmm, the options are instruction, syscall, or runtime. Let's break it down. The problem is with 32-bit architectures on a 64-bit host. Linux-user mode in QEMU is for running user-space applications, not full system emulation. So when they say it breaks some 32-bit architectures, it could be related to how instructions are handled, system calls, or runtime issues. + +If it's an instruction issue, maybe the commit introduced a wrong instruction or changed how instructions are emulated for 32-bit. But I don't have details on the specific error. System calls (syscall) would involve issues with how the guest system calls are translated to the host. If the problem is with system call handling, like incorrect parameters or not properly passing them through, that's a syscall error. + +Runtime errors are more general issues that occur during execution, like memory problems, crashes, or unexpected behavior not directly tied to instructions or syscalls. Since the problem is that the commit breaks some architectures, maybe it's a runtime issue. But how? + +Alternatively, maybe the commit changed some code that affects how 32-bit instructions are executed on a 64-bit host. For example, if there's a bug in the translation of instructions from 32-bit to 64-bit host instructions, that would be an instruction error. However, if the issue is with how system calls are made from the 32-bit user space to the host's 64-bit system, that's a syscall problem. + +But the problem is described as "breaks some 32-bit architectures". That could mean that when running a 32-bit application under QEMU's user mode on an AMD64 host, the application doesn't run correctly. This could be due to incorrect handling of system calls specific to those architectures. For example, if the commit changed how system call numbers or arguments are passed, leading to incorrect syscalls being made, causing the application to fail. + +Alternatively, it could be a runtime error where the emulator crashes or misbehaves during execution. Without more details, it's a bit tricky. But considering that user-mode emulation often involves translating system calls and handling the guest's system calls on the host, a problem here is likely related to syscalls. However, if the commit introduced an invalid instruction in the emulation path for 32-bit, that would be an instruction error. But since it's affecting multiple architectures, maybe it's more about how syscalls are handled across different 32-bit architectures on a 64-bit host. + +Another angle: runtime errors are things like memory leaks, crashes during execution, etc. If the problem is that the emulator is crashing when running 32-bit apps, that's runtime. If the apps are failing due to incorrect syscall behavior, that's syscall. If the apps are failing because the emulator isn't executing the correct instructions, that's instruction. + +Given that the issue is in the Linux-user mode, which uses the host's kernel for system calls, the most likely category here is syscall. The commit might have introduced a change that affects how system calls are generated or handled for 32-bit processes, leading to errors. Therefore, I think the category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1749393 b/results/classifier/qwen3:32b/reasoning/syscall/1749393 new file mode 100644 index 00000000..f6b8f4e0 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1749393 @@ -0,0 +1,11 @@ +<think> +Okay, let's try to figure out the category for this bug report. The user is saying that sbrk() isn't working under qemu-user when running a PIE-compiled bash binary. The problem causes allocation failures in bash's custom malloc, which uses sbrk. They mention that using glibc's malloc works, implying the issue might be with how sbrk is handled in qemu-user specifically with PIE. + +First, I need to recall what sbrk does. It's a syscall used to adjust the program break, which is how a process manages its heap. So sbrk is a system call. The problem arises when qemu-user is emulating the environment for a different architecture (like i386 on amd64), and when the binary is PIE (Position Independent Executable), which affects how addresses are handled. + +The user says that when bash is PIE, sbrk fails in qemu-user, but not when using glibc's malloc. This suggests that the issue is related to how qemu-user handles the sbrk syscall in the context of PIE binaries. Since sbrk is a syscall, the problem might be in how qemu-user is processing that particular syscall for PIE executables. + +The categories given are instruction, syscall, or runtime. Since the problem seems to be tied directly to the sbrk system call not functioning correctly under qemu-user, the most likely category here is "syscall". The error isn't about incorrect instructions (which would be 'instruction') but rather an issue with the system call interface in qemu-user. The 'runtime' category is for other runtime errors, but since the root cause is likely in the syscall handling, 'syscall' is the best fit. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1756 b/results/classifier/qwen3:32b/reasoning/syscall/1756 new file mode 100644 index 00000000..361dabc0 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1756 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting a SIGSEGV issue in qemu-user on Linux. The problem seems to be related to the brk(NULL) system call. The description says that when brk(NULL) returns a value that doesn't point to an existing page, qemu-user's do_brk() function tries to memset a region starting from that non-existent page, causing a segmentation fault. + +Hmm, the core of the problem is how qemu handles the brk system call. The issue arises because qemu assumes that the brk value returned by the system call is valid and contiguous with the .bss section. But Linux's brk(NULL) can return a random value for security reasons, which might not be backed by a page. When qemu tries to zero out the memory between the target_brk and brk_page, it's accessing a page that doesn't exist, leading to a crash. + +The user suggests that qemu should only call memset if the first page of the range exists. The problem here is in the system call handling for brk, specifically in how qemu interprets and acts upon the return value of brk(NULL). Since this is related to the handling of the brk system call, which is a syscall, the category should be 'syscall'. + +The error isn't due to an incorrect instruction (so not 'instruction'), nor is it a general runtime error like a memory leak or logic error elsewhere. It's specifically about the handling of a system call's return value and the subsequent actions taken by qemu, which falls under syscall issues. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1756519 b/results/classifier/qwen3:32b/reasoning/syscall/1756519 new file mode 100644 index 00000000..6d049842 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1756519 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting a crash in QEMU's linux-user mode when running a specific test case from the GCC libgomp testsuite. The error message mentions a GLib critical error and an assertion failure in QOM's object_get_canonical_path_component. The backtrace points to the crash happening during a do_fork() call, which is part of the syscall handling in QEMU. + +Looking at the categories provided: instruction, syscall, runtime. The problem seems to be related to the do_fork() syscall, which is handled in the linux-user mode. The crash occurs during the execution of the fork system call, specifically when creating a CPU in the child process. The error is in the QOM (QEMU Object Model) code when trying to get the canonical path component, which shouldn't be reached. + +Since the issue is triggered during a system call (fork) and the backtrace shows it's in the syscall handling code (do_fork), the category should be syscall. The problem isn't about a specific instruction being wrong, nor is it a general runtime error—it's specifically tied to the handling of the fork syscall in QEMU's user mode. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1760 b/results/classifier/qwen3:32b/reasoning/syscall/1760 new file mode 100644 index 00000000..0bf6f8d8 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1760 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The problem is about QEMU's i386 emulator not correctly decoding the arguments for the old mmap syscall (number 90) on 32-bit. The user provided a test case where when running with strace, the mmap call shows the correct arguments, but when using QEMU's -strace option, the arguments reported are different. + +Looking at the assembly code, they're setting up the stack with the six arguments for the mmap syscall. The comment mentions that %ebx points to the array of six arguments. The syscall number is 90 for mmap. The issue is that QEMU isn't reporting the correct arguments when tracing. + +The problem seems to be that QEMU is not properly interpreting the syscall arguments. The user's test case shows that the actual arguments passed (like NULL, 8192, PROT_READ|PROT_WRITE, etc.) are captured correctly by the host strace but not by QEMU's own tracing. That suggests that QEMU's code for handling the mmap syscall's argument extraction is incorrect. + +Since syscalls are the interface between user space and kernel, and QEMU emulates the system calls for the guest program, any error in how the arguments are read or passed would fall under a syscall error. The bug isn't about an incorrect CPU instruction (so not 'instruction'), nor is it a general runtime error (so not 'runtime'). It's specifically about the syscall arguments being misinterpreted by QEMU. Therefore, this is a syscall category issue. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1761153 b/results/classifier/qwen3:32b/reasoning/syscall/1761153 new file mode 100644 index 00000000..5f93cfd6 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1761153 @@ -0,0 +1,15 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU-user mode where it incorrectly handles mmap for large files when the host is 64-bit and the guest is 32-bit. They provided a test case that fails when run under qemu-i386, showing an incorrect data error. The problem occurs when the offset is over 4GiB. + +So, the question is to classify this bug into one of three categories: instruction, syscall, or runtime. + +First, instruction-related bugs are about incorrect CPU instructions being executed. This seems unlikely here because the problem is related to memory mapping, which is a higher-level operation. + +Next, syscall. The mmap function is a system call, but QEMU handles system calls in user mode by translating them between the host and guest. Since the issue is with the parameters (like offset beyond 32-bit) when passing the syscall to the host, this might be a syscall issue. + +Runtime errors are other issues happening during program execution not covered by the above. But since the problem is specifically with handling a system call (mmap) and the parameters (like large offset), it's probably a syscall category. The problem might be that QEMU isn't correctly handling the 64-bit offset in a 32-bit environment when making the mmap syscall on a 64-bit host. The host's mmap expects a 64-bit offset, but the guest's 32-bit syscall might be passing it incorrectly, leading to the wrong address being mapped. + +Therefore, the bug is related to system call handling in QEMU-user. The answer should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1763536 b/results/classifier/qwen3:32b/reasoning/syscall/1763536 new file mode 100644 index 00000000..66ba9313 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1763536 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is having issues with go build under qemu-ppc64le-static in a Docker container. The problem occurs with multi-threaded Go commands, leading to hangs, segfaults, or other errors. They mention that when using GOMAXPROCS=1 and building with -p 1, it works fine, but when using multiple threads, it fails. + +Looking at the error message, there's a fatal error related to stopm holding locks and an unexpected signal during runtime. The stack trace includes syscall.Syscall6 and some issues with signals like SIGSEGV. The key part here is that the problem arises with multi-threaded execution, which suggests it's related to how QEMU handles threading or system calls on ppc64le. + +The user also notes that the same issue occurs with arm64, which might indicate a common problem in QEMU's user-mode emulation for multiple architectures when handling threading. Since the problem disappears when running single-threaded, it's likely not an issue with the Go code itself but with how QEMU manages multiple threads in user-mode. + +In QEMU's context, syscall handling is crucial for emulating system calls correctly across different architectures. If there's a flaw in how syscalls are managed for multi-threaded applications, especially on ppc64le and arm64, that could lead to the observed crashes. The error messages point to syscall.Syscall6 and a segmentation violation, which hints at syscall handling issues. The runtime errors are symptoms, but the root cause is probably in how QEMU processes syscalls in a multi-threaded environment. + +The categories to choose from are instruction, syscall, or runtime. Since the problem is tied to system calls in a multi-threaded context and the error messages involve syscalls and signals, the most fitting category is syscall. It's not an instruction error because the problem isn't about executing wrong instructions but about handling system calls correctly across threads. Runtime errors are general, but the specifics here point more directly to syscall handling in QEMU. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1770 b/results/classifier/qwen3:32b/reasoning/syscall/1770 new file mode 100644 index 00000000..f8ff258d --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1770 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The bug report is about an issue with the epoll_event structure on qemu-or1k (OpenRISC). The problem is that when using CMake with Qt5 automoc, it freezes during the build process. The user provided a patch that adds TARGET_OPENRISC to the condition for defining TARGET_EPOLL_PACKED. + +So, the issue is related to the structure packing of epoll_event. The QEMU code for syscall handling has a structure definition for epoll_event, and on OpenRISC, it needs to be packed. The original code only applied packing for x86_64. The fix is adding OpenRISC to that condition, making the structure packed correctly. + +Now, I need to classify this bug into one of the categories: instruction, syscall, or runtime. + +The problem stems from how the epoll_event structure is defined in the syscall handling code. Since epoll is a system call in Linux, and the issue is about the structure's packing when handling syscalls in QEMU, this seems to be a syscall-related error. The structure is part of the syscall's data, so incorrect packing would cause data misalignment when the syscall is processed. + +The infinite loop happens because the application is waiting for epoll events that aren't being processed correctly due to the structure's incorrect layout. This isn't a runtime error in the general sense but specifically tied to syscall handling. So the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1783362 b/results/classifier/qwen3:32b/reasoning/syscall/1783362 new file mode 100644 index 00000000..f4fcdf20 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1783362 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting a bug in QEMU-user where mmap is supposed to return a failure when the length is zero. But right now, when len is 0, it's returning success (NULL, 0) instead of failure (MAP_FAILED, -1). + +The steps to reproduce involve compiling an ARM aarch64 binary and running it on an x86 host with qemu-user. The test case shows that on QEMU, when len is 0, mmap returns 0 (success), but on a real ARM host, it returns -1 (failure) with errno 22. The assertion in the code fails because alloc (which is 0) isn't equal to MAP_FAILED (-1). + +So the problem is that the mmap system call isn't handling the len==0 case correctly. According to POSIX, mmap's len argument can't be zero. The POSIX standard says that if len is zero, mmap should return an error. So when the user passes len=0, the system call should fail. But in QEMU's emulation, it's not doing that. + +Looking at the categories provided: instruction, syscall, runtime. The issue is with the system call (mmap) not behaving correctly. The bug is in how the syscall is handled by QEMU. The actual instruction execution might be correct, but the syscall's behavior is wrong. So the category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1785203 b/results/classifier/qwen3:32b/reasoning/syscall/1785203 new file mode 100644 index 00000000..584cdb57 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1785203 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user provided a bug report about QEMU crashing when mincore() is called with an invalid pointer. The error message mentions an assertion failure in the page_check_range function. The testcase uses mincore with a pointer that's likely out of the valid address space. + +Looking at the backtrace, the crash happens in page_check_range, which checks if the start address is within a certain limit (L1_MAP_ADDR_SPACE_BITS). The invalid pointer here is 0x00000010000000000, which is 1 << 40 (since 0x10000000000 is 1 followed by 40 zeros in hex). The assertion is checking if start is less than (1 << L1_MAP_ADDR_SPACE_BITS). If L1_MAP_ADDR_SPACE_BITS is smaller than 40, then this start address would be too big, causing the assertion to fail. + +The issue arises because the mincore syscall is passing an invalid address, which QEMU's user-mode emulation needs to handle. The problem isn't with the instruction itself but with how the syscall is processed. The crash occurs during the handling of the mincore syscall when QEMU checks the address range. Since the bug is triggered by a syscall with invalid parameters and the error is in the syscall handling code, this should be categorized under 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1791763 b/results/classifier/qwen3:32b/reasoning/syscall/1791763 new file mode 100644 index 00000000..d85d0772 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1791763 @@ -0,0 +1,37 @@ +<think> +Okay, let's tackle this bug report. The user is talking about signal handling in the Nios2 user-mode emulation for QEMU. They mention that the problem is in the 3.0 release and reference specific GCC testsuite failures. + +First, they list some issues they found and tried to fix. The first problem is code copied from the Linux kernel not differentiating between host and target data types and address spaces. That sounds like a common issue when porting kernel code to user-mode emulation, where the target architecture's structures might differ from the host's. + +The second issue is with the sigaltstack() system call returning EINVAL because the struct fields are in the wrong order. That's a syscall-related problem, specifically with the structure layout. The user applied a patch to fix that, but the signal handler still isn't being invoked. + +The user is asking for classification into one of three categories: instruction, syscall, or runtime. The problem here seems to involve system calls (like sigaltstack) and signal handling setup. The initial issues they mention are syscall-related, but the main problem persists even after fixing those. However, since the system calls are returning successfully but the handler isn't called, maybe it's a deeper runtime issue. + +Wait, the question is to classify the bug report. The report mentions syscall errors (EINVAL due to struct layout) and the handler not being invoked. The first part is definitely syscall-related. The second part (handler not invoked) might be a runtime problem, but the user's patch addresses syscall issues. However, since the user is pointing out that the syscall setup is returning success but the handler isn't called, maybe the root cause is still in the syscall handling. Or maybe it's a runtime issue because the signal delivery isn't happening even after syscalls are fixed. + +But the problem with sigaltstack is a syscall error. The user's patch fixed that, but there's still an issue. The main classification is based on the primary category. The original bug report mentions broken signal handling, which involves syscalls like sigaltstack and the setup of signal handlers. Since the user's patch addresses syscall-related issues (struct layout), but the handler isn't invoked, maybe the remaining problem is in the signal delivery mechanism, which could be a runtime issue. However, the initial problem described is about syscall handling. + +The possible categories are instruction, syscall, runtime. The user's first point is about code not differentiating host/target data types, which could be a runtime issue, but the specific example given is a syscall returning EINVAL. The second example is a syscall (sigaltstack) issue. The fact that the system calls are returning successfully but the handler isn't invoked might be a runtime problem. However, the initial bug report's classification might depend on which part is the primary issue. + +The problem with the struct target_sigaltstack is a syscall error. The user's patch fixes that, but the handler isn't called. The user is unsure why. The fact that the handler isn't invoked could be due to incorrect setup in the syscall handling (like not properly setting up the signal context) or a runtime issue in how signals are delivered. + +But given that the user mentions "system calls to set up the signal handler are returning successfully", the problem might be in the signal delivery, which is part of the runtime environment. However, in QEMU's user-mode emulation, signal handling involves both syscall handling (like setting up the handler) and the actual delivery when a signal occurs. If the syscalls are correctly setting up the handler but the signal isn't being delivered, that could be a runtime issue. + +But the initial problem mentioned in the bug report is about signal handling in the emulation, which involves syscalls. The user's patch addresses syscall issues, but the remaining problem is that the handler isn't invoked. So, the classification could be syscall if the issue is in the syscall handling, or runtime if it's in the execution. + +Alternatively, maybe the problem is that the signal handler setup is correct (syscalls return success), but when the signal is supposed to be delivered, QEMU isn't handling it properly. That would be a runtime error. + +The categories are instruction, syscall, runtime. Since the problem involves system calls (like sigaltstack) and their correct handling, but the main issue after fixing those is that the signal isn't delivered, which might be runtime. However, the initial report's primary issue is about syscall handling. + +The user says the problem is "broken signal handling", which is a broader category. The specific issues they mention are syscall-related (EINVAL from sigaltstack), but even after fixing that, there's another problem. However, the question is to classify the bug report. The first problem they identified is a syscall error (struct fields order), which is a syscall category. The fact that the handler isn't invoked could be part of the same syscall handling or a runtime issue. + +Given that the user's patch addresses syscall-related issues but the problem remains, the classification might be syscall if the remaining issue is still in syscall handling. However, if the handler not being invoked is due to something else, like incorrect context setup during signal delivery, which is part of the runtime, then it's a runtime issue. + +In QEMU's user-mode, signal handling involves both syscall handling (like setting up the handler via syscalls) and the actual delivery when a signal occurs. If the syscalls are correctly setting up the handler but the delivery isn't happening, that's likely a runtime issue. + +So, considering all that, the primary category here is syscall because the initial problem was with the syscall's structure and the user's patch addresses that. However, the remaining issue (handler not invoked) might be runtime. But the user is asking to classify the bug report as a whole. + +The bug report mentions "broken signal handling in nios2 user-mode emulation" and specific syscall issues. The user's patch fixes some syscall issues but the problem remains. The classification should be based on the main category. Since the problem is in the syscall handling (like sigaltstack) and the setup, I think the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1791796 b/results/classifier/qwen3:32b/reasoning/syscall/1791796 new file mode 100644 index 00000000..afae059a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1791796 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user provided a bug report related to QEMU. The main issue here is that certain system calls like set_robust_list and clone are reported as unimplemented. The user also mentioned that they reported signal syscall problems separately. The possible categories are instruction, syscall, or runtime. + +Looking at the log, there are multiple instances where syscalls like set_robust_list and clone are failing with "Function not implemented" errors. The key here is that the problem is with the syscall implementation in QEMU. The user is pointing out that these syscalls aren't properly handled, which falls under syscall errors. The other category, instruction, is about faulty instructions, which doesn't seem to be the case here. Runtime is for other runtime errors, but since the issue is specifically with syscalls not being implemented, the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1805913 b/results/classifier/qwen3:32b/reasoning/syscall/1805913 new file mode 100644 index 00000000..f192fca1 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1805913 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is describing a bug where readdir() returns NULL with errno EOVERFLOW when using 32-bit user-static QEMU on a 64-bit host. They provided a code example and steps to reproduce. The root cause seems to be in glibc's handling of getdents64, checking if inode numbers and offsets fit into 32-bit ranges. The problem arises because QEMU is passing through 64-bit inode numbers from the host kernel, which are too large for the 32-bit application's expectations. + +The user mentions that on real hardware with a 32-bit kernel, the inode numbers are 32-bit, so it works. But in QEMU's case, since it's emulating a 32-bit user space on a 64-bit host, the syscall (getdents64) returns 64-bit values. The glibc code checks for 32-bit compatibility and triggers EOVERFLOW when the values are out of range. + +The question is to classify this bug into one of the categories: instruction, syscall, or runtime. + +The issue is related to how syscalls are handled. Specifically, the getdents64 syscall is returning data that the 32-bit application can't handle because the values are too big. The problem stems from the syscall interface between the 32-bit user space and the 64-bit kernel. QEMU is supposed to translate syscalls appropriately, but here it's passing through the 64-bit inode numbers directly, which leads to the overflow. + +Since the core of the problem is the syscall (getdents64) returning values that are incompatible with the 32-bit application, the correct category would be "syscall". The error arises from how the syscall's data is handled between the host and the emulated environment. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1808563 b/results/classifier/qwen3:32b/reasoning/syscall/1808563 new file mode 100644 index 00000000..8aacdc33 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1808563 @@ -0,0 +1,19 @@ +<think> +Okay, let's try to figure out what category this bug report falls into. The user is talking about QEMU's behavior when using the QEMU_LD_PREFIX environment variable. They provided a demo where running QEMU with that prefix causes the root directory (/) to be remapped to a different directory. The strace output shows that when they open "/", it's actually opening the directory specified in QEMU_LD_PREFIX. The user also mentions that if they change the code to chdir("/"); opendir("."), it works fine. + +First, the problem seems to be related to how QEMU handles the QEMU_LD_PREFIX. The QEMU_LD_PREFIX is used to specify a directory that QEMU should treat as the root for the emulated system. So when the user runs QEMU with that prefix set, any access to "/" in the emulated environment should point to that directory. + +The issue here is that when they list the contents of /, QEMU is using the QEMU_LD_PREFIX directory instead of the real root. The strace shows that the openat call for "/" is remapped to the QEMU_LD_PREFIX path. That suggests that QEMU is intercepting the system calls related to directory access and modifying the paths based on the prefix. + +Now, the user is asking to classify this bug report into one of the three categories: instruction, syscall, or runtime. + +An "instruction" bug would be something related to incorrect CPU instructions being executed, like a wrong opcode or emulation issue. A "syscall" bug would involve errors in how system calls are handled, such as incorrect parameters passed to the OS or not handling a specific system call properly. "Runtime" errors are other issues that occur during the execution, perhaps configuration or logic errors that don't fit into the other two categories. + +In this case, the problem seems to be about how QEMU is handling the system calls for directory operations. The user's example shows that when they open "/", QEMU is redirecting it to the QEMU_LD_PREFIX path. The strace output confirms that the openat system call is being remapped. However, when they use chdir("/"); opendir("."), it works correctly. This suggests that the way QEMU is handling the openat system call with absolute paths is different from when the path is relative after a chdir. + +This might be a problem in how QEMU intercepts and modifies system calls related to file operations. Since the issue is directly related to the system call handling (specifically, the openat syscall) and how the paths are resolved based on the QEMU_LD_PREFIX, it seems like a syscall category issue. The QEMU is modifying the system call parameters (the path) based on the environment variable, which is part of its syscall interception logic. + +The fact that changing the code to use chdir and then opendir works correctly implies that the problem is in how QEMU processes the absolute path in the openat call. So the root cause is likely in the syscall handling code within QEMU. Therefore, the correct category should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1808565 b/results/classifier/qwen3:32b/reasoning/syscall/1808565 new file mode 100644 index 00000000..fa0a9040 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1808565 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is talking about a bug in QEMU's user mode, specifically version 3.1.0. The issue is about reading /proc/self/task/<pid>/maps not being remapped correctly. They mention that the existing code in is_proc_myself handles remapping for /proc/self/maps and /proc/<pid>/maps but not for the task directory variants. Extending that code fixes the problem. + +Hmm, the problem is related to how QEMU handles certain paths in the /proc filesystem when running in user mode. The key here is understanding what category this falls into. The options are instruction, syscall, or runtime. + +Instruction-related bugs are about incorrect CPU instructions, maybe like emulation errors. Syscall would involve system call handling issues. Runtime errors are other issues during execution not covered by the others. + +Since this is about the handling of a specific system call (reading /proc.../maps), but more specifically about the path remapping logic within QEMU's code. The problem isn't the syscall itself but how QEMU intercepts and rewrites the paths for certain syscalls. The is_proc_myself function is part of the code that remaps these paths when the process is accessing its own /proc entries. The bug is that this remapping isn't extended to the task directory cases. So, it's more about the logic within QEMU's syscall handling for specific paths. Therefore, this seems to be a syscall category issue because it's about how system calls related to /proc are being processed and remapped. The runtime category is for other runtime errors, but since this is specifically tied to syscall path handling, syscall makes sense here. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1810433 b/results/classifier/qwen3:32b/reasoning/syscall/1810433 new file mode 100644 index 00000000..c023f41f --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1810433 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an inconsistent behavior with the pwrite() system call in the aarch64-linux-user mode of QEMU. The issue arises when the buffer is NULL and the length is 0. They provided a test case that shows different results between native systems and QEMU. On native x86_64 and aarch64, pwrite returns 0, but in QEMU, it returns -1. + +First, I need to figure out what pwrite does in this scenario. According to POSIX, when the length is 0, pwrite should return 0, regardless of the buffer. Even if the buffer is NULL, since no data is being written, the system call should succeed. The fact that QEMU is returning -1 suggests that the emulation of the pwrite syscall in QEMU isn't handling the len=0 case correctly. + +The problem isn't with the instruction set emulation because the system call handling is separate from instruction execution. The issue is specifically with how QEMU's syscall emulation for pwrite processes the parameters. When len is 0, the correct behavior is to return 0 without attempting to access the buffer. However, QEMU might be checking the buffer validity even when len is 0, leading to an error when buf is NULL. + +This would be a syscall category bug because it's about the correct handling of a system call's parameters and return values. The runtime category usually includes issues like crashes or general runtime errors not specific to syscalls. Since the problem is directly related to the syscall's implementation in QEMU's user-mode emulation, the correct classification is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1813307 b/results/classifier/qwen3:32b/reasoning/syscall/1813307 new file mode 100644 index 00000000..f4bce1ea --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1813307 @@ -0,0 +1,17 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU's follow_path() function in util/path.c not handling the root directory "/" properly. They mention that when they try to run gdbserver under QEMU, it fails in __getcwd. The problem seems to be that when QEMU's lstat is called on "/", it returns the QEMU_LD_PREFIX (which is the sysroot top), but when they do a series of lstat("..") calls, it ends up at the real device root instead. This inconsistency causes __getcwd to fail. + +So, the core issue is how QEMU handles the root path "/". The user is asking why QEMU maps "/" to QEMU_LD_PREFIX and if it could be changed to map to the actual root. + +Looking at the categories provided: instruction, syscall, runtime. + +The problem isn't about a faulty instruction (like an incorrect CPU instruction emulation), so probably not 'instruction'. The issue is with how system calls related to path resolution are handled. The follow_path function is part of QEMU's user-mode emulation, which handles path translations between the host and the emulated environment. Since the problem is with the path handling during syscalls like lstat, this seems to be a syscall-related issue. However, the 'syscall' category here might refer to errors in the syscall implementation itself. Alternatively, if it's about path resolution logic, maybe 'runtime'? + +Wait, the categories are instruction, syscall, runtime. The user is describing a problem where the syscall (like lstat) is being handled incorrectly because of how paths are resolved. The follow_path function is part of QEMU's internal handling of path translations. Since the issue is in the path resolution during a syscall, maybe it's a syscall error. But maybe it's more about the runtime behavior of QEMU's path handling. + +Alternatively, the 'runtime' category is for other errors happening during runtime, not instruction or syscall. The problem here is that the syscall (lstat) is returning incorrect information because of how QEMU's follow_path is processing the path. So it's an error in the syscall handling. Therefore, the category would be 'syscall'. But maybe the problem is in the path handling logic, which is part of the runtime. + +Hmm. The user is saying that the follow_path function doesn't handle "/" well. The function is part of QEMU's utility code, which is used during syscall emulation. The problem is that when the path is "/", it's being mapped to QEMU_LD_PREFIX, leading to inconsistent behavior. The root cause is in how QEMU translates paths during syscalls, leading to incorrect results. Therefore, this is a problem with the syscall handling in QEMU. So the category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1821006 b/results/classifier/qwen3:32b/reasoning/syscall/1821006 new file mode 100644 index 00000000..126eaae0 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1821006 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is encountering an error with QEMU: "Unsupported syscall: 382" when trying to build a Docker image for ARM using qemu-user-static. They provided their Dockerfile and some system configuration details. + +First, I need to understand what the error signifies. The message mentions an unsupported syscall, specifically number 382. Syscalls are system calls made by programs to the operating system kernel. If QEMU doesn't support a particular syscall, it means that when the program inside the emulated environment tries to make that call, QEMU can't handle it, leading to an error. + +Looking at the user's setup, they're using QEMU version 1:2.8+dfsg-6+deb9u5. The Dockerfile uses an ARM base image and installs some packages. The error occurs during the build process, likely when running the curl command. The discussion they linked points to a Debian bug report, which might be related to syscall support in QEMU. + +The problem here is that the ARM binary being run through QEMU is making a system call (number 382) that the current version of QEMU doesn't support. This is a syscall-level issue because it's about QEMU's ability to translate or handle that specific system call from the ARM architecture to the host's system calls. + +The categories given are instruction, syscall, or runtime. Since the error is explicitly about an unsupported syscall, the correct classification would be "syscall". The other options don't fit: it's not about a faulty instruction (like an incorrect CPU instruction), nor is it a general runtime error. It's specifically a syscall handling problem in QEMU. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1829459 b/results/classifier/qwen3:32b/reasoning/syscall/1829459 new file mode 100644 index 00000000..d6577586 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1829459 @@ -0,0 +1,11 @@ +<think> +Okay, let's try to figure out the category for this bug report. The user is using QEMU 4.0.0 in user mode to run aarch64 binaries on a Gentoo host. The problem arises when they try to use "emerge" which fails with "qemu_thread_create: Invalid argument". They also mention that running commands with --pid or unshare_pid=True triggers the issue. + +First, I remember that QEMU user mode handles system calls from the guest architecture. The error message points to a problem with thread creation in QEMU. The user mentioned that QEMU lacks support for PID namespaces. PID namespaces allow processes to have different PID numbers in different namespaces. + +When the "unshare --pid" command is used, it creates a new PID namespace. The QEMU error here is likely because it doesn't properly handle the PID namespace, leading to an invalid argument when trying to create a thread. Since the issue is related to the handling of namespaces, which are part of the system call functionality in Linux, this might be a syscall problem. + +But wait, the options are instruction, syscall, or runtime. The error occurs when a specific system call related to namespaces is made, and QEMU doesn't support it. So the problem is that QEMU isn't handling the correct system calls needed for PID namespaces. That would fall under the syscall category. However, another angle is that the error is happening during runtime when the program tries to use the namespace. But the root cause is QEMU's lack of support for the necessary system calls related to PID namespaces. Therefore, it's an error in handling a specific syscall, making it a syscall category issue. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1837 b/results/classifier/qwen3:32b/reasoning/syscall/1837 new file mode 100644 index 00000000..cd7c0c61 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1837 @@ -0,0 +1,15 @@ +<think> +Okay, let's see. The user is reporting an issue with the QEMU emulator, specifically the qemu-aarch64-static version. The problem is that the IP_MULTICAST_IF socket option isn't supported in the linux-user mode. They provided a sample program that fails with "Protocol not available" when run under QEMU. + +Hmm, the categories to choose from are instruction, syscall, or runtime. Let me break it down. + +First, the bug is about a missing socket option support. The program uses setsockopt with IP_MULTICAST_IF, which is a syscall. In QEMU's user-mode, when a program makes a syscall, QEMU has to emulate it. If QEMU doesn't handle that particular syscall correctly, it would result in an error. + +The error message "Protocol not available" suggests that the syscall is being passed to the host kernel, which doesn't recognize it in this context. That would happen if QEMU isn't properly translating or handling that specific setsockopt call. So, this is a syscall handling issue in QEMU's linux-user component. + +The user mentions that it's similar to IP_ADD_MEMBERSHIP, implying that perhaps other socket options are handled but this one isn't. Therefore, the bug is in the syscall emulation part of QEMU. + +So the correct category here is 'syscall' because it's about a system call not being correctly emulated or supported. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1857811 b/results/classifier/qwen3:32b/reasoning/syscall/1857811 new file mode 100644 index 00000000..8ca04aaa --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1857811 @@ -0,0 +1,9 @@ +<think> +Okay, let's break this down. The user is using a QEMU user static binary to run a Gentoo chroot environment for aarch64. When they try to emerge packages, they get an error about not being able to configure the loopback interface, with the message "Operation not supported." They noticed that if they disable the network-sandbox (which uses network namespaces), the error goes away. + +So the problem seems to be related to network namespaces. The question is whether this is a QEMU bug. The user says it's part of QEMU, so I need to classify the bug into one of the three categories: instruction, syscall, or runtime. + +The error message mentions an operation not supported. Since QEMU is emulating the system calls for the ARM architecture, maybe the specific system call related to network namespaces isn't implemented or is incorrectly handled in QEMU's user-mode emulation. When the network sandbox is enabled, emerge tries to create a network namespace, which involves system calls that QEMU isn't supporting in user mode. That would fall under a syscall issue because the system call isn't properly emulated. Alternatively, maybe it's a runtime error because the operation isn't supported in the environment. But since the root cause is that the necessary system call isn't available or isn't emulated correctly by QEMU, it's more of a syscall problem. So the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1858461 b/results/classifier/qwen3:32b/reasoning/syscall/1858461 new file mode 100644 index 00000000..7a69f3fb --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1858461 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is working with QEMU and added a new syscall (436) but is getting ENOSYS from the MIPS application. They modified the mips/cpu_loop.c by adding an entry to mips_syscall_args. The issue seems to be that the syscall number is being calculated as env->active_tc.gpr[2] - 4000, and if that number is beyond the size of mips_syscall_args, it returns ENOSYS. + +Wait, the user mentioned that the ARM version has its own ARM_NR_BASE, which probably adjusts the syscall numbers correctly. The MIPS code might not be accounting for the correct base value, leading to the syscall_num being out of bounds. For example, if the actual syscall number is 436, but the base is 4000 (as in ARM's case), subtracting 4000 would give a negative number, which would definitely be beyond the array size, hence ENOSYS. + +So the problem is that the MIPS code isn't using a base value like ARM does. The user wants to refactor MIPS's cpu_loop.c to handle syscalls similarly to ARM. The root cause is that the syscall number calculation isn't correct for MIPS, leading to the wrong index in the syscall_args array. This is a syscall handling issue because the syscall number isn't being adjusted properly, causing it to fall into the ENOSYS case. + +The classification options are instruction, syscall, or runtime. Since the problem is about the syscall number not being handled correctly, the category should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1860053 b/results/classifier/qwen3:32b/reasoning/syscall/1860053 new file mode 100644 index 00000000..1fa38a64 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1860053 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user provided a bug report related to QEMU's user-mode emulation on ppc64le. The issue is with Go's time functions like NewTicker and Sleep not working correctly when using vDSO for clock_gettime. The problem appears in Go 1.12+ but not in 1.11, and it's specific to QEMU's user mode, not actual hardware or other architectures. + +The key point here is that the problem is suspected to be in QEMU's handling of vDSO calls for clock_gettime. The user mentions that when Go switched to using vDSO for PowerPC64 in 1.12, the issue arose. The symptoms are that sub-second timers aren't working—they're defaulting to 1 second. The question is whether the nanoseconds part is lost in vDSO calls via QEMU's emulation. + +The categories to choose from are instruction, syscall, or runtime. The bug seems to be related to how QEMU emulates the vDSO for clock_gettime. Since vDSO is a mechanism that allows certain system calls (like clock_gettime) to be handled in user space without a full context switch to kernel mode, the issue here is with the emulation of that specific system call's vDSO version. The problem isn't with the instruction set emulation per se, but rather how the system call (specifically the vDSO version) is handled. The runtime category is for other runtime errors, but since the issue is tied to a syscall's vDSO implementation in QEMU, the correct category would be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1861341 b/results/classifier/qwen3:32b/reasoning/syscall/1861341 new file mode 100644 index 00000000..539c9005 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1861341 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is encountering an "Unknown syscall 397" error when using QEMU with Flatpak for ARM images on x86_64. The syscall 397 corresponds to statx, as they mentioned. The problem occurs when running qmake inside the ARM SDK via Flatpak, leading to issues finding .pro files and libraries. + +First, I need to figure out what category this falls into. The options are instruction, syscall, or runtime. The error message directly mentions an unknown syscall, which points towards the syscall category. The issue here is that QEMU doesn't recognize or handle the statx syscall (number 397) when emulating ARM on x86_64. Since statx is a system call specific to Linux, and maybe it's not implemented or properly emulated in QEMU's user-mode for ARM on x86_64, this would be a syscall-related problem. The other possibilities: instruction would involve incorrect CPU instructions, which isn't the case here. Runtime errors are more general, but since the core issue is about an unknown system call, syscall is the correct category. So the answer should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1869241 b/results/classifier/qwen3:32b/reasoning/syscall/1869241 new file mode 100644 index 00000000..fc44457a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1869241 @@ -0,0 +1,13 @@ +<think> +Okay, let's try to figure out what's going on here. The user is encountering an SVN checkout error with the message "Value too large for defined data type" when trying to build for ARM7 using qemu-arm-static. The error code is E000075 from SVN. + +First, I need to understand what this error means. The "Value too large for defined data type" error typically relates to the system's handling of file sizes or other numerical values exceeding what the data types can handle. This might be related to something like 32-bit vs 64-bit integer limits. Since they're using QEMU to emulate an ARMv7 environment, maybe there's an issue with how the emulation handles certain system calls or data types. + +Looking at the categories provided: instruction, syscall, or runtime. The error seems to occur when SVN tries to read a directory, so it's probably during a system call. The error message suggests a problem with the data type size, which might be due to the emulated environment not properly handling a syscall that involves large numbers. For example, if the host system is 64-bit but the emulated ARM is 32-bit, there might be incompatibilities in how system calls handle large values, especially if the QEMU emulation isn't correctly translating the syscall parameters or results. + +The user mentioned trying different versions of qemu-arm-static without change. That suggests it's a persistent issue in how QEMU handles a particular syscall related to file operations. Since the error is when reading a directory, it's possible that the stat() system call (or similar) is returning a value that the emulated environment can't handle. For example, if the directory entry has a file size that exceeds a 32-bit integer, but the ARMv7 emulation is using 32-bit data types, leading to an overflow and hence the error. + +Therefore, this seems like a syscall issue because the problem arises when the application (SVN) makes a system call to read directory information, and the QEMU's handling of that syscall is causing an error due to data type size mismatches. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1876373 b/results/classifier/qwen3:32b/reasoning/syscall/1876373 new file mode 100644 index 00000000..f4d45da6 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1876373 @@ -0,0 +1,13 @@ +<think> +Okay, let's try to figure out what's going on here. The user is reporting a segfault when using mremap in a QEMU-hosted process. The problem occurs when shrinking a buffer to 4096 bytes, but not when using other sizes like 12288. The code works natively on x86_64 but segfaults under qemu-i386 and qemu-arm. The segfault happens during the mremap syscall. + +First, I need to recall what mremap does. It's used to change the size of a memory mapping. The parameters are the old address, old size, new size, and flags. In this case, the program is trying to shrink the mapping from 8192 to 4096. The issue is specific to QEMU emulation, so the problem might be in how QEMU handles the mremap syscall for 32-bit guests. + +The user mentioned that when they change the new_size to 12288, there's no segfault. That's interesting. Maybe there's an alignment or page size issue. Wait, 4096 is exactly one page size on most systems. But mmap and mremap typically deal with page-aligned sizes. However, the code isn't using any flags like MREMAP_FIXED or MREMAP_MAYMOVE. The flags parameter is 0, which means it should just adjust the size if possible. + +But why would QEMU have a problem with this? Maybe QEMU's syscall emulation for mremap on 32-bit targets has a bug when handling the case where the new size is exactly one page. Perhaps the emulator isn't correctly handling the page alignment or the address calculation when reducing the size. The native system works, so the host's mremap implementation is okay. The problem is in QEMU's handling of the syscall for 32-bit processes. + +The categories given are instruction, syscall, or runtime. Since the segfault occurs during the mremap syscall and it's specific to QEMU's emulation of that syscall, this should be classified as a syscall issue. The instruction category would be if there was a wrong instruction being executed, but here the problem is in the syscall handling by QEMU. Runtime errors are more about the program's execution environment, but this seems directly tied to the syscall implementation in QEMU. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1884719 b/results/classifier/qwen3:32b/reasoning/syscall/1884719 new file mode 100644 index 00000000..22d1ffdc --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1884719 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is encountering a "Function not implemented" error when using the libaio library in an emulated aarch64 environment via QEMU and Docker. The error code is ENOSYS, which typically means the system call isn't available. + +First, I need to figure out if this is a syscall issue. The problem arises when using QEMU user-static for emulation. The program works natively but fails under emulation. The key here is that libaio uses asynchronous I/O, which relies on specific system calls. QEMU user mode emulates the CPU but doesn't emulate all kernel features. If the host kernel doesn't support certain syscalls needed by libaio for the target architecture, that would result in ENOSYS. + +The user tried strace but got similar errors, indicating that even tracing is problematic. However, the main issue is that the io_queue_init syscall isn't being handled by QEMU. Since QEMU's user mode doesn't handle all syscalls, especially those architecture-specific ones required by libaio, this would fall under a syscall error. The problem isn't with the instruction set emulation but with the syscall handling. Therefore, the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1887306 b/results/classifier/qwen3:32b/reasoning/syscall/1887306 new file mode 100644 index 00000000..ce12d235 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1887306 @@ -0,0 +1,11 @@ +<think> +Okay, let's try to figure out the category for this QEMU bug report. The user is describing a deadlock issue when using qemu-user with a multithreaded program that does a lot of forks. The problem seems to be related to how QEMU handles the fork system calls in a multi-threaded environment. + +First, the program creates many threads (NUM_THREADS), each of which forks multiple times (NUM_FORKS). When running under QEMU, this leads to deadlocks. The user mentions that larger numbers of threads and forks make the problem more likely. They also tried using a mutex to serialize the forks but that didn't help. However, adding a barrier to ensure all forks complete before threads exit seems to prevent the deadlock. + +The key here is that the issue arises during the execution of the fork() system call within a multi-threaded process under QEMU's user-mode emulation. System calls like fork are critical for process management, and if QEMU's handling of these syscalls isn't thread-safe or properly synchronized, it could lead to deadlocks. + +Since the problem is tied directly to the execution of the fork syscall and how QEMU manages the state across multiple threads making these calls, this seems to be a syscall-related issue. The runtime category is for other runtime errors, but syscall specifically covers errors in system call handling. The instruction category is about faulty CPU instructions, which isn't the case here. So the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1893010 b/results/classifier/qwen3:32b/reasoning/syscall/1893010 new file mode 100644 index 00000000..aa80a754 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1893010 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is reporting that QEMU's linux-user mode doesn't support OFD fcntl locks, which are non-POSIX. They mentioned that when they try to use F_OFD_SETLK, F_OFD_SETLKW, or F_OFD_GETLK, it results in an EINVAL error. Looking into the QEMU source code, specifically linux-user/syscall.c, the issue seems to be in the target_to_host_fcntl_cmd function where these commands aren't handled, leading to a default case. + +So, the problem is that these specific fcntl commands aren't translated properly from the target (like ppc64 or s390x) to the host (x86_64) system calls. Since fcntl is a system call, this would fall under syscall handling in QEMU's user-mode emulation. The error occurs because the syscall translation is missing these cases, leading to an invalid argument error. Therefore, this is a syscall-related issue. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1894361 b/results/classifier/qwen3:32b/reasoning/syscall/1894361 new file mode 100644 index 00000000..4080dbe6 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1894361 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU. The problem is that in the syscall.c file, there's a missing pselect6_time64. They mentioned a commit where the legacy pselect6 definition for RISC-V 32 was removed in favor of pselect6_time64, but that new one isn't in syscall.c, so RISC-V 32 is left without the pselect syscall. + +So, I need to classify this bug report into one of the three categories: instruction, syscall, or runtime. The categories are given, and the answer should be just the category name. + +First, the bug is about a missing syscall (pselect6_time64) in syscall.c. The user is saying that the syscall isn't available, which is causing an issue for RISC-V 32. The commit removed the old definition and supposed to use the new one, but that new one isn't implemented. + +Since the problem is directly related to a syscall not being present or properly handled in the syscall.c file, this would fall under the 'syscall' category. The error isn't about an instruction being wrong (which would be 'instruction'), nor is it a runtime error like a crash or incorrect behavior during execution (which would be 'runtime'). It's specifically about the syscall definition missing, so the correct category is 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1895305 b/results/classifier/qwen3:32b/reasoning/syscall/1895305 new file mode 100644 index 00000000..d71a7ca4 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1895305 @@ -0,0 +1,21 @@ +<think> +Okay, let's see. The user is reporting an issue with pthread_cancel failing when using musl libc in QEMU. The problem occurs specifically when the binary is built with musl, both dynamically and statically linked. The error codes and signals mentioned are RT33, exit code 161, and real-time signals 2 with exit 164. + +First, I need to figure out what's causing this. The key points are that it's related to QEMU and musl libc. The user provided a minimal example and test results showing that the issue only happens when both QEMU and the binary are using musl. The other combinations (glibc QEMU with musl binary, etc.) work fine. + +Now, looking at possible categories: instruction, syscall, or runtime. + +The problem seems to be related to how QEMU handles certain system calls or threading functions when musl is involved. The pthread_cancel function is part of the POSIX threads library, so its behavior depends on the C library implementation (musl vs glibc) and how QEMU emulates the system calls for that. + +Since musl and glibc might have different implementations of pthreads, QEMU's emulation might not be fully compatible with musl's threading model. The error messages like RT33 and the real-time signals suggest that there's an issue with signal handling, which is part of the system call or runtime environment. + +But the user says it's part of QEMU. If it's a syscall issue, maybe QEMU isn't correctly handling a specific system call used by musl's pthread_cancel. However, pthread_cancel is a library function, so it might translate into system calls that QEMU isn't properly emulating. Alternatively, it could be a runtime issue where QEMU's environment isn't supporting the threading model that musl expects. + +Wait, the error codes RT33 and the exit codes (like 161) might correspond to specific signals or errors. For example, on Linux, real-time signals start from 34 (SIGRTMIN is 34), but the user mentions RT33, which would be signal number 33. However, standard signals don't go that high. Maybe it's a QEMU-specific error code or a misinterpretation. The exit code 161 could be 128 + 33 (since 128 + signal number is the exit code when a process is killed by a signal). So 128 + 33 = 161. Similarly, signal 2 is SIGINT, but real-time signal 2 would be a higher number. Maybe the exit code 164 is 128 + 36? Not sure. But the key is that the process is being terminated by a signal that's not handled properly. + +This suggests that when using musl, pthread_cancel sends a signal that QEMU isn't handling correctly. QEMU's emulation of the target architecture's signal handling might differ when musl is used. Since musl and glibc handle threading differently, perhaps QEMU's syscall emulation for certain thread-related operations is missing or incorrect when musl is involved. + +Since the problem is specific to QEMU and the interaction with musl's libc, it's likely a syscall issue. The pthread_cancel function would generate some system calls that QEMU isn't emulating correctly for musl. For example, maybe the way musl handles thread cancellation involves specific system calls that QEMU doesn't support, leading to a failure. Alternatively, it could be a runtime issue where QEMU's environment isn't properly set up for musl's runtime requirements. But given that it's about system call handling, I'm leaning towards syscall category. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1906193 b/results/classifier/qwen3:32b/reasoning/syscall/1906193 new file mode 100644 index 00000000..9be2e22d --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1906193 @@ -0,0 +1,25 @@ +<think> +Okay, let's try to figure out what's going on here. The user is reporting an issue with fork return values when running RISC-V32 user mode emulation under QEMU. The problem is that when a child process exits with 42, the parent receives 40 instead. + +First, I need to recall how fork and wait work. When a process forks, the child process returns 0, and the parent gets the child's PID. The parent then uses wait to collect the child's exit status. The exit status is stored in an integer, and macros like WEXITSTATUS are used to extract the actual exit code. + +The user provided a test program. The child calls exit(42), and the parent checks the status. But instead of 42, it's getting 40. The difference is -2. Hmm. So the exit status is not being passed correctly from the child to the parent. + +Now, considering the environment: RISC-V32 in a chroot, using QEMU on x86_64. The tools are GCC 10.2 and binutils 2.34. The problem is specific to QEMU's emulation, as per the user's note that it's part of QEMU. + +Possible categories are instruction, syscall, or runtime. Let's think about each. + +An instruction error would be if QEMU is misemulating a specific RISC-V instruction. But fork and exit are system calls, so maybe it's related to how syscalls are handled. However, the problem here is in the return value propagation between parent and child, which might involve the kernel or the emulator's handling of process management. + +Syscall errors involve incorrect handling of system calls. The fork and wait system calls might be involved here. If QEMU's syscall emulation for RISC-V is not correctly passing the exit status, that could be the issue. For example, maybe the way the exit status is stored in the status variable is incorrect, perhaps due to endianness or data size issues. Since it's RISC-V32, maybe there's a 32-bit vs 64-bit handling problem, or how the status is being returned in registers. + +Runtime errors are other issues not covered by instruction or syscall. But since the problem seems to be in the system call's handling of process exit statuses, it's more likely a syscall issue. The exit status is passed through the kernel, and if QEMU's syscall emulation isn't correctly handling the parameters for exit or wait, that would fit under syscall. + +Another angle: the exit status is stored in the status variable. The macros WIFEXITED and WEXITSTATUS rely on the status being correctly set. If the syscall for wait is returning an incorrect status, that's a syscall error. For example, maybe QEMU isn't properly emulating the wait system call's return value, leading to incorrect status being passed back to the user space. Or perhaps there's an issue with how the exit code is being stored in the child process's structure, leading to the parent reading an incorrect value. + +Given that the problem is in the emulation of the RISC-V user mode, and the exit status is part of the system call handling between the emulated process and the host (or the emulated kernel), this seems to be a syscall issue. The QEMU user-mode emulation needs to correctly handle the system calls related to process forking and waiting, and if there's a mistake in how the exit status is passed through these syscalls, that would explain the discrepancy. + +Therefore, the category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1910605 b/results/classifier/qwen3:32b/reasoning/syscall/1910605 new file mode 100644 index 00000000..a363c78b --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1910605 @@ -0,0 +1,21 @@ +<think> +Okay, let's see. The user is encountering an issue with QEMU where the ioctl call for USBDEVFS_BULK returns -1 with EFAULT when using qemu-arm-static, but works fine with qemu-aarch64-static. They're on a 64-bit Intel laptop. + +First, I need to figure out what's going on here. The problem is specific to the static ARM emulator versus the AArch64 one. The error is EFAULT, which means "Bad address," typically indicating that the user-space pointer passed to a system call isn't valid. + +Looking at the code snippet: they're setting up a usbdevfs_bulktransfer structure, filling in the endpoint, length, data pointer, and timeout. Then they call ioctl with the USBDEVFS_BULK command. The error occurs in the ioctl call. + +Now, the key here is that this works on aarch64 but not on arm. Since USBDEVFS_BULK is a legacy interface (now replaced by libusb and the usbfs is deprecated), maybe there's a difference in how QEMU handles the ioctl for different architectures. + +The EFAULT suggests that the kernel (or QEMU's emulation of the kernel) is trying to access the user-provided buffer and finds an invalid address. Since QEMU is emulating the ARM system, perhaps there's a discrepancy in how user pointers are handled between the 32-bit and 64-bit emulations. + +In the case of qemu-arm-static, it's emulating a 32-bit ARM system. When using ioctl, the kernel expects the pointer (Bulk.data) to be within the user space that it can access. If the data pointer is from the host's address space (which is 64-bit), but QEMU is trying to emulate a 32-bit ARM system, the address might not be valid in the emulated context. + +In contrast, qemu-aarch64-static is emulating a 64-bit ARM system. If the host is 64-bit as well, the pointers might be compatible, allowing the ioctl to work correctly. + +This seems to be a problem related to how QEMU handles system calls, specifically the ioctl, when translating between the host's address space and the guest's. The EFAULT is likely because the emulated process (32-bit ARM) can't access the 64-bit host's memory address. + +So, since the issue is with the system call (ioctl) and how the addresses are handled in the context of QEMU's emulation, this falls under the syscall category. The problem isn't with the instruction itself but with how the system call is processed, particularly the handling of user-space pointers across different architectures. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1913 b/results/classifier/qwen3:32b/reasoning/syscall/1913 new file mode 100644 index 00000000..d6193dd5 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1913 @@ -0,0 +1,19 @@ +<think> +Okay, let's see. The user is reporting a regression in QEMU version 8.1.1 where running ldconfig in an ARM64 Ubuntu rootfs causes a segfault. They provided steps to reproduce, which involve extracting an Ubuntu base image and using qemu-aarch64-static to run ldconfig.real. + +First, I need to figure out what category this falls into: instruction, syscall, or runtime. The problem occurs when executing a specific command with QEMU's user-mode emulation. The crash happens during the execution of ldconfig, which is a dynamic linker cache utility. + +Since the issue is about QEMU crashing during the execution of a system command, it's likely related to how QEMU handles system calls or the execution flow. However, the user mentions it's a regression between versions 8.1.0 and 8.1.1. The key here is to determine if the problem is due to a specific instruction being mishandled (instruction category), an error in system call emulation (syscall), or some other runtime issue. + +The segfault could be due to QEMU not correctly emulating a system call that ldconfig is making, leading to an invalid memory access. Alternatively, it could be a runtime error in QEMU's code when processing certain operations during ldconfig's execution. Since ldconfig interacts with the dynamic linker and libraries, it's possible that during its execution, it makes syscalls that QEMU now handles differently in 8.1.1, leading to a crash. + +The instruction category is for when the bug is about incorrect handling of specific CPU instructions. If the problem were, say, an incorrect translation of an ARM instruction to x86, that would be an instruction error. However, the problem here seems more related to system call handling or some runtime state management. + +The syscall category is for errors where QEMU's emulation of system calls is incorrect. For example, if a syscall is not properly forwarded to the host or is emulated incorrectly. Since ldconfig is performing operations that require syscalls (like reading/writing files, interacting with the dynamic linker), a regression in how those syscalls are handled in QEMU 8.1.1 could lead to a segfault. + +Runtime errors are other issues that occur during execution, not necessarily tied to syscalls or instructions. However, given that this is a regression in a specific version and involves system command execution, it's more likely tied to syscall handling. + +Therefore, I think the correct category here is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1915925 b/results/classifier/qwen3:32b/reasoning/syscall/1915925 new file mode 100644 index 00000000..cb3e8351 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1915925 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is reporting a bug in QEMU's handling of the ARM semihosting HEAPINFO call. The problem is that QEMU is interpreting the PARAMETER REGISTER incorrectly. According to the ARM spec, the parameter should be a pointer to a four-field data block, but QEMU is treating it as the data block directly. This leads to incorrect memory writes and crashes when using Newlib's semihosting mode. + +So, the issue here is about how QEMU processes the semihosting syscall, specifically the HEAPINFO operation. The mistake is in the way the parameter is handled—QEMU is not following the ARM specification correctly. Since semihosting is part of the ARM architecture's syscall interface, this would fall under syscall handling. The problem isn't with the instruction itself (like an incorrect opcode or execution), but rather the system call's parameters and their processing. Therefore, the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1926246 b/results/classifier/qwen3:32b/reasoning/syscall/1926246 new file mode 100644 index 00000000..bc0d7ace --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1926246 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is talking about Chrome-based apps not running under QEMU user mode. The problem seems to be related to how Chrome uses /proc/self/exe to fork render processes. They provided a sample code that demonstrates the issue, where using /proc/self/exe with execl leads to an unknown option error in QEMU. The suggested workaround is modifying the exec syscall to replace /proc/self/exe with the real path. + +The key here is understanding why QEMU can't handle /proc/self/exe correctly. The error message mentions an unknown option, which might be due to how QEMU handles the exec syscall when the path is /proc/self/exe. The user is suggesting that modifying the exec syscall to resolve /proc/self/exe to the real path would fix the issue. + +Looking at the categories provided: instruction, syscall, runtime. The problem seems to be with the exec syscall. When the program tries to execute /proc/self/exe, QEMU's handling of that syscall might be causing the error. The fact that the error occurs during the exec call and that the solution involves modifying the syscall's behavior points towards a syscall category. The sample code's execl is failing because QEMU isn't processing that path correctly in the exec syscall. So the error is tied to how the syscall is handled, not the instruction itself or runtime errors after execution. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1926521 b/results/classifier/qwen3:32b/reasoning/syscall/1926521 new file mode 100644 index 00000000..686c2522 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1926521 @@ -0,0 +1,7 @@ +<think> +Okay, let's tackle this. The user is reporting a bug in QEMU-user related to how it handles the MADV_DONTNEED flag in the madvise syscall. The code in QEMU has a comment saying it's okay to ignore this hint, but the user argues that according to the Linux man pages, MADV_DONTNEED does affect memory semantics, specifically that after the call, accessing the memory should result in zero-filled pages for private mappings. The test case shows that when running under QEMU, the assertion fails because the memory isn't cleared, but it works on native Linux. + +So the issue is that QEMU's user-mode emulation is not properly handling the MADV_DONTNEED advice. The problem is in the syscall handling because the madvise system call is being processed incorrectly. The comment in the code treats it as a hint and ignores it, but the actual Linux behavior requires that the memory be invalidated in a way that affects subsequent accesses. Since the application relies on this behavior and QEMU isn't emulating it correctly, this is a syscall-related issue. The error occurs during the execution of the syscall, leading to incorrect program behavior. Therefore, the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1926996 b/results/classifier/qwen3:32b/reasoning/syscall/1926996 new file mode 100644 index 00000000..97b1ff7a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1926996 @@ -0,0 +1,11 @@ +<think> +Okay, let's tackle this bug report classification. The user is saying that qemu-user is failing to emulate the clone() syscall. They provided a test case where running the code natively works, but under QEMU, the clone call returns an error. The clone() system call is used for creating threads in Linux, right? So the problem is that when using QEMU's user-mode emulation, the clone syscall isn't working as expected. + +The categories to choose from are instruction, syscall, or runtime. The instruction category is for when there's a faulty instruction being described. But here, the issue isn't about an instruction itself. The problem is with the system call handling. The user is specifically mentioning that the clone() syscall is not being properly emulated by QEMU-user. + +The syscall category is for errors related to system calls. Since the bug report is about QEMU failing to correctly handle the clone() system call, leading to an invalid argument error (error code 22), this seems like a syscall issue. The runtime category is for other runtime errors, but the problem is directly tied to the syscall emulation in QEMU. + +So the correct category here should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1936977 b/results/classifier/qwen3:32b/reasoning/syscall/1936977 new file mode 100644 index 00000000..3302a068 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/1936977 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is reporting that qemu-arm-static crashes with a segmentation fault when running "git clone". The bug report mentions that this was a previous issue (#1869073) which was supposed to be fixed in newer versions, but since they're using Focal, they can't get a newer version. + +First, I need to classify this into one of the three categories: instruction, syscall, or runtime. + +A segmentation fault usually indicates an invalid memory access. Now, the question is why that's happening here. QEMU emulates the CPU instructions, so if there's a faulty instruction, that's an "instruction" category. But if the problem is with system calls (like if the emulator isn't handling a particular syscall correctly), then it's a syscall issue. Runtime errors are other issues during execution, maybe library issues or configuration. + +In this case, "git clone" would involve a lot of system calls, like file operations, network calls, etc. If QEMU isn't correctly handling one of those syscalls when running under static binfmt (like qemu-arm-static), that could lead to a crash. The previous report mentioned it was fixed in newer versions, which suggests that the issue was related to how syscalls are handled in the specific version of QEMU. + +Since segmentation faults in this context often relate to syscall emulation (like incorrect handling leading to invalid memory access in user space), I think this is a syscall issue. The QEMU version in Focal is old and might have a bug in how it emulates a particular syscall needed by git, causing the segfault. So the category should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2101 b/results/classifier/qwen3:32b/reasoning/syscall/2101 new file mode 100644 index 00000000..d4b03e98 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2101 @@ -0,0 +1,23 @@ +<think> +Okay, let's see. The user is trying to run an x86_64 binary (ls) on an aarch64 platform using QEMU. They mentioned that when they use qemu-x86_64 with the -L option pointing to a directory containing the necessary libraries, the command ls / gives wrong results. + +First, I need to understand what the -L option does. From what I remember, the -L option in QEMU specifies the directory that contains the system root for the emulation. So when you run qemu-x86_64 -L /path/to/root /bin/ls, it tells QEMU to use /path/to/root as the root directory for the emulated x86_64 environment. This means that when the program tries to access the root directory, it's actually accessing this specified path on the host system. + +Now, the problem is that when the user runs the command, the output is incorrect. Possible reasons could be: + +1. **Library Issues**: The copied libraries might not be compatible or are missing some files. If the dynamic linker (ld-linux-x86-64.so.2) isn't present or is incorrect, the program might not run properly. But the user mentioned they copied all the dependencies using the script, so maybe that's not the issue. + +2. **Syscall Handling**: QEMU emulates syscalls, but there might be a discrepancy in how certain syscalls are handled between the host (aarch64) and the emulated x86_64 environment. For example, if the ls command is trying to read directory entries and the syscall returns different structures or data, it could lead to incorrect output. + +3. **Path Resolution**: The -L option mounts the specified directory as the root. If the path resolution is incorrect, when ls tries to list /, it might be pointing to the wrong directory. For example, if the -L path is not correctly set up, the root directory in the emulated environment might not match what the user expects. However, the user's command seems to explicitly set the -L path, so this could be a configuration error, but the problem persists even when following the steps. + +4. **Emulation Bugs**: There could be a bug in QEMU's user-mode emulation for x86_64 on aarch64. Maybe certain system calls or behaviors are not correctly emulated, leading to incorrect results when accessing the file system. + +The user provided a script that copies the necessary files and runs QEMU. The problem occurs when they run the ls command with -l /, leading to wrong results. The key here is that it's a runtime issue. If it's a syscall problem, then the emulation of syscalls might not be correctly translating the x86_64 syscalls into the equivalent aarch64 syscalls. For example, if the opendir or readdir syscalls are not handled correctly, the ls command might not display the correct directory contents. + +Alternatively, if the dynamic linker is not correctly loaded or the environment is not set up properly, it might lead to runtime errors. But the user mentioned they copied all dependencies, so that's less likely. + +Since the problem happens during the execution of the program under QEMU, and the issue is related to the system call handling when accessing the file system, this would fall under the 'syscall' category. The wrong result when listing the root directory suggests that the syscalls related to directory operations are not being correctly emulated or translated between the architectures. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2112 b/results/classifier/qwen3:32b/reasoning/syscall/2112 new file mode 100644 index 00000000..7b1f632d --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2112 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is talking about an issue with QEMU's user mode when handling the MIPS clone syscall. The problem arises when certain flags are used. The error is "Invalid argument" because QEMU checks if the flags include all in CLONE_THREAD_FLAGS. The user's program uses a subset of those flags, leading to the error. + +So, the core issue is about the syscall handling in QEMU. The clone syscall is a system call, and the problem is that QEMU's implementation isn't accepting the specific combination of flags the user is providing. The error is happening during the syscall processing, not due to an instruction or runtime environment. The user is asking if there's a way to adjust QEMU to accept those flags without changing the program's behavior. + +Looking at the categories: instruction, syscall, runtime. Since the problem is with the syscall's handling in QEMU, the correct category should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2123 b/results/classifier/qwen3:32b/reasoning/syscall/2123 new file mode 100644 index 00000000..2f949eaa --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2123 @@ -0,0 +1,25 @@ +<think> +Okay, let's see. The user is reporting an issue where QEMU is spawning a subprocess even when the command doesn't exist. But normally, when you try to run a non-existent command, the system should return an error. The problem here is that under QEMU, it's still spawning a process, which suggests that the error isn't being caught correctly. + +The example uses Rust's Command::new with a non-existent command. When running normally, it hits the Err case, but under QEMU, it returns Ok and gives a child process ID. So QEMU is allowing the process to start even when the command isn't found. + +Hmm. How does process spawning work here? On Unix-like systems, the execve system call is used to execute a program. If the executable doesn't exist, execve returns an error. But the fork and exec process involves first forking the process and then executing the new program. If the Command::new is spawning via fork and exec, then QEMU might be intercepting the system calls involved here. + +Wait, but in the case where the command doesn't exist, the execve call should fail. However, if the system is allowing the fork to happen and then the exec fails, the process would still be considered a child process. But why would the spawn method return Ok? Normally, in Rust's Command::spawn, it should return an error if the exec fails. Wait, maybe because the process is created but then immediately fails? But how does that translate into the result? + +Wait, the spawn function in Rust's std::process::Command returns a Child structure. The spawn function returns Ok(Child) if the process was successfully spawned, regardless of whether the command exists. Wait, no. Wait, when you call Command::new("nonexistent").spawn(), the Command struct is supposed to handle the fork and exec. If the exec fails (e.g., the command doesn't exist), the process should not be considered successfully spawned. But perhaps in QEMU's environment, the exec is failing, but the fork is succeeding, leading to the process being considered as spawned? + +Wait, no. The spawn method in Rust returns Ok if the process was successfully spawned, meaning that the fork and exec were successful. If exec fails, then the process is still created but immediately exits with an error. However, in that case, the spawn function would still return Ok(Child), but the child process would exit immediately. But in normal Linux, when you fork and exec, if exec fails, the child process would return an error, but the parent would still get a valid PID. However, the Command::spawn in Rust is supposed to handle that. Let me check. + +Wait, in normal Unix, when you fork and exec, if exec fails, the child process returns an error. But in the parent process, waitpid would show that the child exited with an error. However, the initial spawn (fork) is successful, so the parent gets a PID. But in the case of Rust's Command::spawn, perhaps it's catching that error and returning an Err if the exec fails. So how does that work? + +In other words, when you call Command::spawn, it tries to execute the command. If the exec fails (like the command doesn't exist), then the child process would exit with an error, but the parent would still get a Child structure with a PID. However, in Rust's implementation, does the spawn function check whether the exec succeeded or not? Or does it just return Ok as long as the fork was successful? + +Wait, I think that the Command::spawn function in Rust returns Ok if it was able to successfully fork and exec, but if the exec fails, then the child process exits immediately. However, the parent process still gets a Child structure. But in reality, the exec failure is detected by the parent process through the status of the child. However, perhaps in the case of QEMU, when the exec is failing, the error is not being properly propagated back to the parent process. So the parent thinks that the exec succeeded, hence the Child is created, but in reality, the command doesn't exist. That would explain why the Rust code is getting an Ok result when running under QEMU but not when running natively. + +But why would QEMU cause this? It could be that QEMU is handling the execve system call in a way that's not properly reporting the error when the executable doesn't exist. For example, maybe QEMU's emulation of execve is not checking if the file exists, or is allowing the exec to proceed even when the file isn't there. That would be a problem with how QEMU is handling the system call. Alternatively, perhaps QEMU is not properly propagating the error code from the underlying system call. + +In this case, when the user runs the program under QEMU, the Command::spawn is returning a Child process, implying that the exec succeeded. But when run natively, it returns an error. So the problem is that under QEMU, the system call is returning success when it should be returning an error. Therefore, this is a syscall issue in QEMU. The root cause is that the syscall (execve) is being emulated incorrectly, leading to an invalid process being spawned. So the category would be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2168 b/results/classifier/qwen3:32b/reasoning/syscall/2168 new file mode 100644 index 00000000..9a06cabb --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2168 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting a segmentation fault when running grep in a QEMU x86_64 chroot on an ARM64 host. The backtrace from GDB points to the function open_self_maps_2 in syscall.c. The error occurs during a syscall related to opening /proc/self/maps. The specific function involved is part of handling system calls in QEMU's user mode. + +The problem seems to be related to how QEMU handles the openat system call when trying to access the guest's memory maps. The segfault happens when QEMU is trying to process the file descriptor for /proc/self/maps. This points towards an issue with the syscall emulation in QEMU, especially since the backtrace includes functions like do_guest_openat and do_syscall1. + +The categories given are instruction, syscall, or runtime. Since the issue is during the handling of a system call (specifically openat), and the backtrace is in the syscall handling code, the most appropriate category here is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2170 b/results/classifier/qwen3:32b/reasoning/syscall/2170 new file mode 100644 index 00000000..2081aed9 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2170 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user provided a bug report about QEMU crashing when an application calls pthread_getattr_np(). The problem occurs during user emulation. The example program uses pthread_getattr_np, which is a pthread function. The crash in QEMU is a SIGSEGV, and the backtrace points to code in syscall.c, specifically in the open_self_maps_2 function. + +The bug was introduced in a rewrite of open_self_maps in a specific commit. The current master is still affected. The possible categories are instruction, syscall, or runtime. + +Looking at the backtrace, the crash happens in a syscall handling function. The function open_self_maps is part of the syscall processing in QEMU's user mode. The error seems to be related to how QEMU handles the syscall for opening /proc/self/maps, which is used to get memory mapping information. The pthread_getattr_np function might be triggering this by requiring some memory mapping data that QEMU can't handle correctly, leading to a segmentation fault in the syscall code. + +Since the issue is directly related to a syscall handling function in QEMU, and the backtrace shows it's happening during a syscall (like openat for /proc/self/maps), this would fall under the syscall category. The problem isn't about a wrong instruction (which would be an actual CPU instruction error) but rather how QEMU processes the system call. So the correct category here is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2197 b/results/classifier/qwen3:32b/reasoning/syscall/2197 new file mode 100644 index 00000000..e146207a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2197 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is reporting a bug in QEMU's user-space emulator. The problem is with the setsockopt syscall when the optlen is 0. Specifically, when the program calls setsockopt with NULL and 0 length, QEMU returns ENOMEM, but on real Linux it should return success. + +First, I need to figure out which category this falls into. The options are instruction, syscall, or runtime. + +The issue is definitely related to a syscall. The problem occurs when QEMU handles the setsockopt syscall. The user provided a test case that compiles a program using setsockopt with specific parameters. The problem isn't about incorrect instructions (like CPU instructions) but how the syscall is being intercepted and handled by QEMU's user-mode emulator. + +The error is in the syscall handling logic within QEMU. When the optlen is zero, the real kernel would handle it, but QEMU's emulation is returning an error. This seems like a syscall handling bug. The runtime category is for other runtime errors, but since this is specifically about the syscall interception and handling, the correct category should be syscall. + +So the answer should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2262 b/results/classifier/qwen3:32b/reasoning/syscall/2262 new file mode 100644 index 00000000..bcc69acc --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2262 @@ -0,0 +1,11 @@ +<think> +Okay, let's try to figure out the category for this QEMU bug report. The user is describing an issue where a background job in a bash shell under QEMU's RISC-V32 user-mode emulation hangs indefinitely. The problem seems to be related to wait4 or waitpid returning incorrect values. The strace output shows repeated waitid calls returning 0, which might indicate that the parent process isn't properly being notified of the child's status. + +The user provided a simple_shell.c example that's supposed to handle background jobs. When running this under QEMU, after launching a background process like ./loop &, the wait4 call returns a non-zero value (98298) instead of 0 as expected on other architectures. This suggests that the wait4 syscall isn't behaving correctly in the RISC-V32 emulation environment. + +Since the issue is about the system call (wait4/waitpid) not returning the correct value, leading to incorrect behavior in process management, this points to a syscall-related problem. The problem isn't with the instruction set itself (which would be 'instruction'), nor is it a general runtime error. It's specifically about how the syscall is handled in QEMU's user-mode emulation. + +Looking at the QEMU bug categories provided, 'syscall' is the right classification here. The core issue is the incorrect handling or return value of the wait4 system call in the RISC-V32 emulation context. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2309 b/results/classifier/qwen3:32b/reasoning/syscall/2309 new file mode 100644 index 00000000..1309a52e --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2309 @@ -0,0 +1,21 @@ +<think> +Okay, let's see. The user is reporting that qemu-aarch64 hangs when running cargo tests after upgrading libc6 to version 2.36-9+deb12u6. The problem doesn't happen with an earlier version of libc6, and the same binary works on a real ARM64 target. So, the issue seems specific to QEMU when using the newer libc version. + +First, I need to figure out what category this falls into: instruction, syscall, or runtime. + +The user mentions that QEMU is hanging with 100% CPU usage and that GDB can't interrupt it. That suggests the problem might be in how QEMU is handling some system calls or maybe some instructions specific to the newer libc. Since the binary works on real hardware, it's probably not an issue with the code itself but how QEMU emulates the environment. + +The libc upgrade might have introduced changes in system calls or how certain functions are handled. If QEMU isn't correctly emulating a particular syscall that the newer libc uses, that could cause a hang. For example, maybe a new syscall in the updated libc isn't recognized by QEMU, leading to an infinite loop or a blockage. + +Alternatively, it could be an instruction issue if the newer libc uses CPU features that QEMU doesn't emulate properly. However, the user specified the target CPU as neoverse-n1 in their config, so maybe QEMU isn't handling those instructions correctly. But since the same binary runs on real hardware, it's more likely that the real CPU supports those instructions, whereas QEMU might not be emulating them properly. However, the problem only occurs with the newer libc version. So perhaps the newer libc is using different syscalls or some runtime behavior that QEMU isn't handling. + +Another angle: when they run cargo test, it's possible that during test execution, some setup or teardown involving syscalls (like fork, execve, or others) isn't working as expected in QEMU. For example, if the newer libc uses a different method for threading or process creation, QEMU's syscall emulation might not be handling that correctly, leading to a deadlock or infinite loop. + +Since the problem is tied to a specific libc version and QEMU, and the issue is about the runtime behavior (hanging during test execution), it's probably a runtime issue. However, if it's specifically a syscall that's not handled, then it would be a syscall category. But given that the user can't interrupt with GDB and it's using 100% CPU, maybe it's stuck in a loop caused by a syscall that QEMU isn't processing. But without more info on which syscall, it's hard to say. + +The key is that the problem is with the interaction between the newer libc (which might use different syscalls or behaviors) and QEMU's emulation. Since the categories are instruction, syscall, or runtime, and the problem isn't clearly an incorrect instruction (since it works on real hardware), and it's related to system call handling (as libc changes might affect syscalls), but the user hasn't specified a particular syscall. However, since the problem is that QEMU is hanging during execution, which could be due to incorrect syscall handling, but the category 'syscall' is for errors with syscalls. Alternatively, if the problem is more general runtime behavior, like threading or process management, it might be runtime. + +But the fact that the same binary works on real hardware suggests that the issue is in QEMU's emulation, possibly a syscall that's not properly implemented or handled in QEMU when the newer libc uses it. Therefore, it's likely a syscall issue. However, if the problem is in the QEMU runtime environment setup (like not properly handling the test runner's execution flow), then it's runtime. Since the user can't interrupt with GDB, maybe the process is stuck in a syscall that QEMU isn't handling, leading to a hang. So, the category is probably syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2333 b/results/classifier/qwen3:32b/reasoning/syscall/2333 new file mode 100644 index 00000000..e3c80f74 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2333 @@ -0,0 +1,11 @@ +<think> +Okay, let's tackle this bug report. The user is saying that the VDSO method for __clock_gettime64 is crashing under qemu-armeb. They provided a test case that segfaults when using a system snapshot with VDSO enabled, but works when VDSO is disabled. The stack trace points to the clock_gettime.c function where the INTERNAL_VSYSCALL_CALL is used. + +Hmm, the problem is specific to qemu-armeb (big-endian ARM), but not on qemu-arm (little-endian). The error happens during a system call to vdso_time64. VDSO is the virtual dynamic shared object that allows user-space programs to handle certain syscalls without actually making a kernel transition. But when it's broken, it might fall back to regular syscalls. + +The user mentioned that when VDSO is disabled in glibc, the problem goes away. So the issue is likely in how QEMU is handling the VDSO for ARM big-endian. The crash occurs in the VDSO's time64 function. Since the same code works on little-endian ARM and not on big-endian, it's probably an endianness-related issue in QEMU's emulation of the VDSO. + +Looking at the categories: instruction, syscall, or runtime. The problem isn't a faulty instruction per se, but rather how the syscall is being handled in the context of VDSO. Since VDSO is part of the user-space and QEMU's emulation of it, this might fall under runtime. Wait, but the categories are instruction, syscall, runtime. The error is during a syscall made through VDSO. The QEMU's handling of the syscall might be incorrect for big-endian. But the problem is in the VDSO, which is a user-space component. However, since it's part of QEMU's emulation, maybe it's a syscall issue. Or maybe it's a runtime error because it's happening during the execution of the program's runtime (the VDSO part). The description says it's a QEMU bug. The error is that when VDSO is active, the syscall through VDSO is causing a segfault. Since the user is using QEMU to emulate the ARM environment, the problem is in how QEMU is managing the VDSO syscalls for big-endian. So the category could be syscall. But maybe it's a runtime error because it's related to the execution environment. The runtime category is for errors that happen during runtime, not necessarily a specific instruction or syscall. But since the problem is directly tied to a syscall (clock_gettime) via VDSO, maybe it's a syscall category. However, the VDSO is a user-space helper, so maybe it's a runtime issue in QEMU's runtime handling. The user says it's part of QEMU, so the classification is whether it's instruction, syscall, or runtime. Since the error is in the execution of the syscall via VDSO, which QEMU emulates, it's probably a syscall issue. Or maybe it's a runtime error because it's during the program's execution. The line between syscall and runtime could be blurry here. The problem is that QEMU's emulation of the VDSO for armeb is broken, leading to a crash during the syscall. Since the error is in the syscall handling (specifically the VDSO part), I think it's a syscall category. But I'm a bit uncertain. Alternatively, if the problem is that QEMU isn't correctly setting up the environment for the VDSO to function, that's a runtime issue. The key is that the crash is in the VDSO's code when making the syscall. Since the VDSO is part of the user-space and the syscall is being made through it, but QEMU isn't handling it correctly. The error is in the syscall handling for VDSO in QEMU. Therefore, I think the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2353 b/results/classifier/qwen3:32b/reasoning/syscall/2353 new file mode 100644 index 00000000..b625ec5c --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2353 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is reporting a bug in QEMU's user-mode emulation where the ELF interpreter is being mapped at address 0, which causes issues with certain libc implementations like musl. The problem arises because when the guest_base is non-zero, the host's mmap is being asked to map at address 0, which leads to incorrect behavior. + +Looking at the steps to reproduce, they involve running a program (gcc) under QEMU with a specific rootfs. The issue seems to be related to how memory is mapped during the execution of the program. The user provided a patch that modifies the mmap handling in QEMU to treat a NULL start address correctly. + +The categories to choose from are instruction, syscall, or runtime. + +The bug isn't about a specific CPU instruction, so probably not 'instruction'. The problem is with the system call (mmap) emulation. The user is talking about how QEMU handles the mmap syscall, translating guest addresses to host addresses. The core issue is in the syscall handling logic, specifically how the addresses are translated and passed to the host's mmap. + +So the category should be 'syscall' because the error is in the emulation of the mmap system call. The problem isn't with the runtime environment of the program but with how the system call is being translated and executed by QEMU. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2390 b/results/classifier/qwen3:32b/reasoning/syscall/2390 new file mode 100644 index 00000000..5923fb4a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2390 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU where the getsockopt system call behaves differently on RISC-V compared to x64 Linux. Specifically, when passing a NULL optval to getsockopt with SOL_TCP and TCP_KEEPIDLE, QEMU returns a "Bad address" error, while Linux returns 0. The man page says that passing NULL for optval is allowed if no option value is to be supplied or returned. + +Looking at the problem, the user provided a test program that compiles and runs on both platforms, showing the discrepancy. The QEMU implementation seems to be doing extra checks that the actual Linux kernel doesn't. The code in QEMU's syscall.c, specifically in the getsockopt handling, is attempting to dereference optval even when it's NULL, leading to a bad address error. The user points to the put_user*_ functions which are called even when optval is NULL, which would cause a crash. + +The core issue here is how the getsockopt syscall is handled in QEMU's user-mode emulation. The problem isn't with the instruction set or general runtime errors but specifically with the system call's implementation in QEMU. The QEMU code isn't correctly handling the case where optval is NULL as per the man page's guidance. So the category should be syscall since it's a system call handling error. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2410 b/results/classifier/qwen3:32b/reasoning/syscall/2410 new file mode 100644 index 00000000..57fb78ca --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2410 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting an issue with the setsockopt function when using IP_OPTIONS on RISC-V QEMU versus x64 Linux. The error they get is "Protocol not available" on QEMU, but it works on x64. They provided a test program and mentioned that the QEMU code for this syscall isn't implemented. + +First, I need to figure out what category this falls into. The options are instruction, syscall, or runtime. The problem is related to the setsockopt system call. The user says that the QEMU code path for this syscall is unimplemented, pointing to a specific line in QEMU's syscall.c. That suggests that QEMU's handling of this particular syscall isn't implemented correctly for RISC-V. + +Since the issue is with the syscall handling in QEMU, it's not about a faulty instruction (which would be more about CPU instructions not being handled properly). It's also not a general runtime error. The error occurs during a system call, specifically when trying to set IP_OPTIONS. The QEMU part responsible for handling this syscall is missing or incorrect, leading to the error. Therefore, this should be classified as a syscall issue. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2446 b/results/classifier/qwen3:32b/reasoning/syscall/2446 new file mode 100644 index 00000000..7034a64c --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2446 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is reporting an issue with Qemu not supporting the set_robust_list syscall. They provided a test program that uses this syscall and show that when running under Qemu (specifically RISC-V), the syscall fails with "Function not implemented". On native x64, it works. The problem is that Qemu's linux-user mode doesn't implement this syscall, which affects applications relying on robust mutexes, like in glibc and .NET. + +Looking at the categories: instruction, syscall, or runtime. The issue is about a missing syscall implementation in Qemu. The bug is in Qemu's syscall handling. So the correct category is "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2553 b/results/classifier/qwen3:32b/reasoning/syscall/2553 new file mode 100644 index 00000000..f836b5d6 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2553 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU where joining an IP multicast group fails when emulating a 64-bit Linux system, specifically PowerPC64. The problem is with the setsockopt call returning ENODEV. They provided a test case and some analysis. + +Looking at the details, the key part is the structure struct ip_mreqn. The user points out that in QEMU's linux-user/syscall_defs.h, the target_ip_mreqn uses an abi_long for imr_ifindex, but the actual Linux struct uses an int. On PowerPC64, abi_long is 64-bit, whereas the real struct's imr_ifindex is a 32-bit int. This discrepancy causes the structure size to be 16 bytes in QEMU's target structure instead of the correct 12 bytes. + +The user's analysis suggests that when the setsockopt is called, the structure is being marshaled incorrectly. The optlen is 12, which is between the size of target_ip_mreq (8 bytes) and target_ip_mreqn (16 bytes) in QEMU. The code in syscall.c checks if optlen is between these sizes and returns EINVAL, but the actual kernel handles sizes between by treating them as the smaller structure. However, QEMU's code isn't handling this correctly, leading to passing invalid data. + +The root cause seems to be a syscall-related issue because the problem is in how the system call parameters (specifically the structure) are being handled by QEMU's user-mode emulation. The structure's incorrect size and type (abi_long vs int) lead to incorrect data being passed to the host's setsockopt, causing the failure. + +Since the problem is in the syscall handling within QEMU's user-mode, specifically in how the arguments are translated between the target (emulated) and host (real) structures, this should be categorized under the syscall category. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2560 b/results/classifier/qwen3:32b/reasoning/syscall/2560 new file mode 100644 index 00000000..6e73cd6a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2560 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting a crash in Go's garbage collector when using qemu-x86_64 on an aarch64 host. The problem started after certain QEMU commits. The error message mentions runtime issues with lfstack.push and invalid packing. The user did some bisecting and found specific commits where the issue started. + +First, I need to figure out what category this falls into: instruction, syscall, or runtime. The error is happening in the Go runtime, specifically in the garbage collector. The user mentions that disabling GC with GOGC=off makes it work, so the problem is likely in how QEMU handles the runtime operations of Go's GC. + +Looking at the QEMU commits mentioned, one is about splitting do_munmap and another about mmap placement. These commits relate to memory management, which is part of system calls (mmap and munmap are syscalls). However, the error is occurring in the runtime of Go. But since the root cause seems to be QEMU's handling of memory mappings (which are syscalls), maybe the issue is a syscall problem. But the error is in the Go runtime code, so maybe the runtime category. Wait, the classification options are instruction, syscall, runtime. The description says "runtime: Other errors which happen in runtime." So the error is happening in the Go runtime, which would suggest the runtime category. However, the underlying cause might be a syscall issue. But according to the classification criteria, if the error is in the runtime, then it's runtime. The problem is that QEMU's handling of syscalls (like mmap/munmap) is causing the runtime to crash. But the categories are about where the bug is in QEMU. Since the QEMU commits are related to syscall handling (mmap/munmap), maybe this is a syscall issue. The user says that the problem is due to QEMU's changes in how memory is mapped, leading to incorrect addresses being passed to the Go runtime, causing the GC to crash. So the error is due to a syscall (memory mapping) being handled incorrectly by QEMU, leading to a runtime error in Go. But the classification is for the QEMU bug. The categories are for the type of the QEMU bug. Since the QEMU change is in the syscall handling (mmap), this would be a syscall category. But the user's problem is a runtime error in Go. Hmm. + +The instruction category is for faulty instructions, like CPU instructions being emulated wrong. That doesn't seem to be the case here. The problem is with memory mappings, which are syscalls. The QEMU commits are about mmap and munmap handling, which are syscalls. The error in Go's runtime is a result of incorrect memory management by QEMU. So the root cause is in the syscall handling. Therefore, the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2592 b/results/classifier/qwen3:32b/reasoning/syscall/2592 new file mode 100644 index 00000000..7ca3e8c2 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2592 @@ -0,0 +1,19 @@ +<think> +Okay, let's try to figure out what category this bug belongs to. The user is saying that when they run Python's time.time() under qemu-aarch64, they get an OSError with [Errno 0] Error. But the same Python build works on a real aarch64 machine and qemu-arm doesn't have this problem. + +First, the problem seems to be specific to qemu-aarch64. The error is happening during the execution of a Python function that relies on the time module. The error message points to an OSError, which in Python usually wraps system calls. So maybe there's a system call that's failing here. + +The user mentions that it's related to QEMU, and they've confirmed that the same Python works on actual hardware. So the issue is likely in how QEMU is handling some system call when emulating aarch64. The error number 0 is strange because usually errno 0 means no error. Maybe the system call is returning an unexpected value, causing Python to raise an error incorrectly. + +Looking at the categories: instruction, syscall, runtime. + +If it's a faulty instruction, that would be something like QEMU not handling a specific CPU instruction correctly. But the problem is with the time module, which probably uses system calls like gettimeofday or clock_gettime. So maybe a syscall issue. + +The error is happening at runtime when the time function is called. However, the root cause might be that QEMU isn't properly emulating the system call that the time function depends on. So the error is during the execution of the system call. + +The 'syscall' category is for errors with system calls. Since the problem seems to be that the system call (like getting the time) is failing or returning an unexpected result in QEMU, leading to the OSError, this would be a syscall issue. + +Alternatively, if the problem was in how QEMU translates instructions, it would be 'instruction'. But given that it's about a system call error, 'syscall' makes more sense. The 'runtime' category is for other runtime errors not covered by the other categories. Since this seems directly tied to a system call, I think 'syscall' is correct. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/263 b/results/classifier/qwen3:32b/reasoning/syscall/263 new file mode 100644 index 00000000..d54bf411 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/263 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is reporting that readdir() returns NULL with errno=EOVERFLOW in a 32-bit user-static QEMU setup on a 64-bit host. Hmm. + +First, I need to recall what EOVERFLOW means. From what I remember, EOVERFLOW is an error that occurs when the result of a function would exceed the maximum value that can be stored in a data type. For example, if a function returns a value that's too big for a 32-bit integer, this error might be triggered. + +Now, QEMU's user-mode emulation allows running 32-bit programs on a 64-bit system. The problem here is happening in readdir(), which is a system call used to read directory entries. The issue is specific to the 32-bit static binary in QEMU. The error is EOVERFLOW, which suggests a data size mismatch between the 32-bit and 64-bit environments. + +Since readdir() is a system call, the error is likely related to how the system call is handled between the 32-bit user space and the 64-bit host kernel. The 32-bit application expects certain data structures, but the host's 64-bit system might be passing something that's too large for the 32-bit process to handle, leading to EOVERFLOW. This seems like a system call handling issue in QEMU's user-mode emulation. + +The categories are instruction, syscall, or runtime. Since the problem is tied to the system call's behavior and the error code related to data size during the syscall, it's probably a syscall category. Instruction errors are about incorrect CPU instructions, which doesn't fit here. Runtime errors are more general, but the specific syscall error points to the syscall category. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2738 b/results/classifier/qwen3:32b/reasoning/syscall/2738 new file mode 100644 index 00000000..0a474152 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2738 @@ -0,0 +1,17 @@ +<think> +Okay, let's see. The user is reporting that when they try to build Go 1.23 using QEMU user-mode on an x86_64 host for a different architecture like aarch64, the build process hangs. The problem was forwarded from a GitHub issue. + +First, I need to figure out what category this falls into. The options are instruction, syscall, or runtime. + +The issue is about QEMU-user, which emulates the system call interface of another architecture. When you run a binary for a different architecture using qemu-user, it translates the system calls and instructions on the fly. The problem occurs during the Go build process. + +If the hang is due to a specific instruction not being handled correctly by QEMU, that would be an 'instruction' category. But if it's related to system calls not being properly emulated or handled, then it's 'syscall'. The 'runtime' category is for other runtime errors not fitting into the first two. + +The user mentioned that the build hangs. Build processes can involve a lot of system calls, especially during linking or when executing the compiled binaries. If QEMU isn't correctly handling a particular system call that the Go toolchain is making, that could cause a hang. For example, maybe a system call related to threading, memory allocation, or process execution isn't being emulated properly. + +Alternatively, it could be an issue with the runtime environment setup by QEMU. However, since the problem is specifically under QEMU-user and involves syscall emulation, it's more likely a syscall issue. The Go runtime might be making system calls that QEMU isn't handling correctly for the target architecture, leading to a hang. + +I don't think it's an instruction problem because that would typically result in an illegal instruction error, not a hang. A hang during system call handling is more indicative of a syscall-related problem. Therefore, the category is probably 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/276 b/results/classifier/qwen3:32b/reasoning/syscall/276 new file mode 100644 index 00000000..340469ed --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/276 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user mentioned an error in the user-mode calculation of an ELF program's brk in QEMU. The categories are instruction, syscall, or runtime. + +First, I need to understand what "brk" refers to. The brk system call is used in Unix-like systems to adjust the amount of memory allocated for the program's data segment. So when a program uses brk, it's making a system call to change the break value. + +The error here is about the calculation in user-mode. QEMU emulates the system calls, right? So if there's a mistake in how QEMU handles the brk syscall when running in user-mode, that would fall under syscall. The problem isn't with the instruction itself (like a wrong CPU instruction being executed), nor is it a general runtime error. It's specifically about the syscall handling for brk. So the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/280 b/results/classifier/qwen3:32b/reasoning/syscall/280 new file mode 100644 index 00000000..18809027 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/280 @@ -0,0 +1,35 @@ +<think> +Okay, let's try to figure out the category for this bug report. The user is saying that on ARM64, when using qemu-x86_64 with schroot (Debian bullseye), they can't run Chrome and can't load HTML. + +First, I need to understand what each part means. QEMU is an emulator, so qemu-x86_64 would be emulating an x86_64 architecture. Since the host is ARM64, they're probably trying to run x86_64 binaries on an ARM machine using QEMU. Schroot is a tool for running programs in a different chroot environment, so maybe they're using it to set up a Debian Bullseye environment. + +The problem is that Chrome isn't running and HTML isn't loading. Now, the possible categories are instruction, syscall, or runtime. + +If it's an instruction issue, maybe there's a specific instruction that's not emulated correctly. But the problem seems more general—Chrome not running and HTML loading issues. That could be due to system calls (syscall) that aren't handled properly. However, runtime errors are other errors that happen during execution, like missing libraries, configuration issues, or compatibility problems. + +Wait, but Chrome might require certain system calls to function, like those related to graphics or networking. If the syscalls aren't properly translated or handled by QEMU, that could cause it to fail. However, runtime errors usually refer to issues like missing dependencies, which might not be a QEMU problem per se. + +But the user is specifically pointing out that it's a QEMU issue. So maybe when running x86_64 binaries via QEMU on ARM64, certain syscalls are not being correctly emulated. For example, Chrome might use some x86-specific syscalls that aren't properly translated, leading to failures. Alternatively, maybe it's a runtime issue because the chroot environment isn't properly set up, but the user says it's part of QEMU. + +Another angle: HTML loading could be related to the browser not being able to access resources, which might involve system calls for network access or file access. If QEMU isn't handling those syscalls correctly, that could be the issue. However, runtime errors could also include things like missing libraries or incorrect paths. + +But since the problem occurs specifically when using QEMU to emulate x86_64 on ARM64, and the user is pointing to QEMU as the cause, it's likely a syscall issue. For example, if QEMU's system call translation is missing or incorrect for certain calls needed by Chrome. However, if it's a more general runtime problem like missing dependencies in the chroot, but the user is using schroot with Debian Bullseye, which should have the necessary libraries. + +Alternatively, maybe the problem is that QEMU isn't properly handling the system calls required for Chrome to run, leading to runtime errors. But the categories are instruction, syscall, or runtime. The question is whether it's a syscall error or another runtime error. + +The instruction category is for faulty instructions described in the bug report. The user didn't mention specific instructions, so probably not that. The error is about Chrome not running and HTML not loading, which is higher-level. If the underlying issue is that certain system calls aren't being handled correctly by QEMU (like those required by the browser), then it's a syscall category. If it's a general runtime issue like missing libraries or environment setup, then runtime. + +But since it's within QEMU's emulation, and system calls are a key part of how programs interact with the OS, if QEMU isn't correctly emulating the necessary syscalls for Chrome to function, that would fall under syscall. However, if the problem is more about the environment setup (like schroot not providing the correct libraries), that's runtime. But the user is pointing to QEMU as the problem. + +Another thought: Maybe the issue is that when running x86_64 binaries under QEMU on ARM64, there's a missing system call implementation. For example, Chrome might require certain system calls that are available on x86_64 but not properly emulated in QEMU for ARM64. That would be a syscall category. + +Alternatively, if it's a runtime error within QEMU's emulation (like a crash during execution), but the categories have runtime as "other errors which happen in runtime." So if the problem is not specifically a syscall error but some other runtime issue, like missing support for certain features required by Chrome, then it's runtime. + +But given that the user says it's part of QEMU, and the problem is with running Chrome and loading HTML, which likely requires multiple system calls (networking, UI rendering, etc.), if those syscalls aren't handled properly in QEMU's emulation, then it's a syscall issue. However, if it's a more general runtime problem, like QEMU not properly setting up the environment, then runtime. + +Since the categories are instruction, syscall, runtime, and the user is pointing to QEMU, I think it's likely a syscall issue because the problem is related to system calls not being properly emulated. But I'm a bit uncertain. Another angle: if the problem is that the system calls are being made but failing, that's syscall. If the system calls are not the issue, but something else during runtime, like memory management or other emulator bugs, that's runtime. + +Given that Chrome is a complex application requiring many syscalls, and if those aren't handled correctly by QEMU's syscall translation, it's a syscall error. So I'll go with syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/2825 b/results/classifier/qwen3:32b/reasoning/syscall/2825 new file mode 100644 index 00000000..8c34d2fb --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/2825 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is describing an issue with execveat when using a file descriptor and an empty filename across different architectures. The problem occurs when running on non-x86_64 architectures like arm64 or riscv64, returning ENOENT. They mention that when using QEMU with binfmt_misc, the x86_64 and x86 work, but others fail. The test code works when using /proc/self/fd instead of the AT_EMPTY_PATH flag. + +Hmm, execveat is a system call. The problem seems to be that when using AT_EMPTY_PATH with a file descriptor, some architectures under QEMU return ENOENT. Since the user says it works natively for those architectures, but not under QEMU, this might be a QEMU-specific issue. The error is related to how QEMU handles the execveat syscall with the AT_EMPTY_PATH flag for certain architectures. The fact that disabling binfmt_misc changes the error to ENOEXEC suggests that QEMU's handling of the syscall is involved here. + +The categories are instruction, syscall, or runtime. Since the problem is with the syscall (execveat) and how QEMU processes it for different architectures, this would fall under the syscall category. The issue isn't about a wrong instruction but how the syscall is handled during execution, especially in the user-mode emulation of QEMU. So the correct classification is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/306 b/results/classifier/qwen3:32b/reasoning/syscall/306 new file mode 100644 index 00000000..a8cdd4d2 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/306 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is asking to classify a bug report related to QEMU. The specific option mentioned is "constrain linux-user exec() to emulated CPU only." The possible categories are instruction, syscall, or runtime. + +First, I need to understand what the bug report is about. The option in question is about restricting the exec() function in the Linux-user mode of QEMU to only the emulated CPU. The exec() function is typically used to execute a new program, replacing the current process. In the context of QEMU's user-mode emulation, this would relate to how the emulator handles executing binaries on the emulated CPU versus the host CPU. + +Now, considering the categories. The "instruction" category is for faulty instructions described in the bug report. If the issue was about an incorrect or unsupported CPU instruction, that would fit here. The "syscall" category is for errors related to system calls. Since exec() is a system call, if there's an error in how the syscall is handled, that would be under syscall. The "runtime" category covers other errors that occur during runtime, not specifically related to instructions or syscalls. + +The key here is the option to constrain exec() to the emulated CPU. This sounds like a configuration or restriction on how the exec system call is processed. If the problem is that when exec is called, it's not properly confined to the emulated CPU (maybe it's using the host's CPU instead), this could be a system call handling issue. However, if the bug is about the execution of the program after exec, maybe the emulator isn't correctly switching to the emulated CPU's state, that might relate to runtime errors. + +But since exec() is a system call, and the issue is about constraining its behavior (i.e., ensuring that the execution is confined to the emulated CPU), it's probably related to how the syscall is being handled. So, the error would be in the syscall processing. Therefore, the category would be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/311 b/results/classifier/qwen3:32b/reasoning/syscall/311 new file mode 100644 index 00000000..f2071195 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/311 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The bug report says "qemu user mode: rt signals not implemented for sparc guests". Hmm, QEMU user mode is about running user-space programs from another architecture. The issue is about real-time signals (rt signals) not being implemented for SPARC guests. + +Real-time signals are part of the POSIX standard, right? So when a program uses rt signals, it's making a system call. If QEMU isn't handling those signals for SPARC, that would mean the emulation of that particular system call is missing. The problem isn't with the instruction itself, but with the system call handling. So the category should be syscall. Runtime errors are more about execution issues like crashes or unexpected behavior during runtime, but here it's a specific missing feature in system call support. So the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/326 b/results/classifier/qwen3:32b/reasoning/syscall/326 new file mode 100644 index 00000000..5c282040 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/326 @@ -0,0 +1,15 @@ +<think> +Okay, let's see. The user is reporting that QEMU-user ignores MADV_DONTNEED. Hmm. I need to figure out which category this falls into. The options are instruction, syscall, or runtime. + +First, what's MADV_DONTNEED? Oh right, it's a memory advice for the madvise system call. The madvise syscall gives hints to the kernel about how to handle memory. MADV_DONTNEED tells the kernel that the application doesn't need the data in the specified memory range anymore, so the kernel can free up resources associated with it. + +So the bug is that QEMU-user isn't respecting this advice. Now, QEMU-user is part of QEMU that allows running binaries in userspace without a full system emulation. When you run a binary with qemu-user, it uses various system calls to interact with the host OS. If it's not handling the MADV_DONTNEED correctly, that might be related to how it's translating or handling the madvise syscall. + +Wait, the problem is that QEMU-user is ignoring the MADV_DONTNEED flag. So when the guest application uses madvise with MADV_DONTNEED, QEMU isn't passing that through or handling it properly. Since madvise is a system call, the issue might be in how QEMU is processing that particular syscall. So this sounds like a syscall issue. But let me think again. + +Alternatively, maybe it's a runtime error. But runtime is for other errors happening during execution, not specifically syscalls. The instruction category is for faulty instructions, like if there's an incorrect CPU instruction being executed. That doesn't seem right here. + +So the core issue is that the system call (madvise) with the specific flag (MADV_DONTNEED) isn't being handled correctly by QEMU-user. Therefore, this should be categorized under the syscall category. The problem is with the system call handling, not the CPU instructions or a general runtime error. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/356 b/results/classifier/qwen3:32b/reasoning/syscall/356 new file mode 100644 index 00000000..8507eb0a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/356 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The bug report says that QEMU's Linux-user mode isn't translating host/target data for iovec I/O. Hmm. I need to figure out which category this falls into. The options are instruction, syscall, or runtime. + +First, instruction errors are about faulty instructions. That usually means something like the emulator executing the wrong instruction or not handling a specific instruction correctly. But this report is about data translation for iovec I/O. I don't think it's directly about an instruction. + +Next, syscall. System calls are when a program requests a service from the OS. If the issue is with how system calls are handled, like arguments not being properly translated between host and target, that would be a syscall problem. The iovec structure is used in system calls like readv and writev, which handle scatter/gather I/O. If QEMU isn't translating the iovec structures correctly, that would affect the syscall handling. So maybe this is a syscall issue. + +Runtime errors are other errors that occur during execution, not fitting into the other categories. If the problem isn't about a specific instruction or a syscall, but something else during runtime, like memory management or threading, then it would be runtime. But in this case, the problem is about translating data structures used in syscalls. + +So, the key here is that iovec is part of system call parameters. If QEMU's user mode isn't translating the iovec structures correctly between the host and target (like different architectures), that's a problem in how the syscalls are being emulated. Therefore, this should be classified under the syscall category. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/447 b/results/classifier/qwen3:32b/reasoning/syscall/447 new file mode 100644 index 00000000..265d6f9d --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/447 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user provided a QEMU error message: "Unable to reserve 0xffff0000 bytes of virtual address space at 0x1000 (Success) for use as guest address space..." They want me to classify this bug report into one of three categories: instruction, syscall, or runtime. + +First, I need to understand the error. The message mentions reserving virtual address space, which sounds like a memory allocation issue. The terms "virtual memory ulimit setting" and "min_mmap_addr" are mentioned, which relate to system-level memory management. The mmap system call is used in Unix-like systems to reserve and map memory, so this might be a syscall issue. However, the error message says "(Success)" which is confusing. Wait, maybe that's part of the error output, indicating that the system call returned success but the reservation failed? That could be a problem with how the system call is handled, perhaps due to constraints like ulimit or min_mmap_addr settings. + +The user is told to check their virtual memory ulimit or use the -R option to reserve less. This suggests that the problem is related to system resource limits, which are managed via system calls. If the system call (like mmap) is failing because of these limits, then the error is related to a syscall. However, the error message might be occurring during runtime when QEMU tries to allocate memory. But the category 'syscall' is for errors with the syscall itself. Since the issue is about the system's inability to reserve memory due to limits, which are enforced via syscalls, this might be a syscall error. Alternatively, if the problem is in how QEMU is handling the memory during runtime despite correct syscalls, it could be runtime. But given that the error points to system settings (ulimit, min_mmap_addr), it's more likely a syscall issue. So I think the correct category here is 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/456 b/results/classifier/qwen3:32b/reasoning/syscall/456 new file mode 100644 index 00000000..7d467c29 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/456 @@ -0,0 +1,15 @@ +<think> +Okay, let's try to figure out what category this bug report falls into. The user is saying that QEMU User (x86_64) hangs after a "futex function not implemented" error. The problem occurs when they try to run a Valheim server binary using QEMU on both an ARM64 Raspberry Pi and an x86_64 Fedora host with QEMU's master branch. + +Looking at the strace output, the last call before the hang is a futex system call that returns -1 with errno 38, which means "Function not implemented." Then, when they send a SIGINT, another futex call is interrupted. The key here is the futex system call. Futex is a Linux system call used for thread synchronization. + +The categories to choose from are instruction, syscall, or runtime. + +The error here is specifically about a system call (futex) not being implemented. The QEMU User mode is supposed to handle system calls from the emulated binary. If QEMU doesn't support or properly handle the futex syscall for the target architecture (x86_64 in this case), that would be a syscall issue. + +The user mentions that the same problem occurs on different hosts (ARM and x86) when using QEMU, which suggests that QEMU's handling of the futex syscall is missing or incorrect. Since futex is a Linux syscall, and QEMU needs to intercept and handle it correctly, this points to a syscall-related bug in QEMU. + +So, the category should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/470 b/results/classifier/qwen3:32b/reasoning/syscall/470 new file mode 100644 index 00000000..a17c1183 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/470 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is talking about a bug in QEMU's linux-user mode. The issue is that it requires read permissions on memory passed to syscalls that should only need write access. Hmm. + +So the problem here is about memory permissions for syscalls. The user says that QEMU is enforcing read access where it shouldn't be necessary—those syscalls only need write access. That sounds like a syscall-related issue because it's about how the system calls are handling memory permissions. + +Wait, maybe it's a runtime error? But runtime errors are more like crashes or unexpected behavior during execution. The problem here seems to be specific to how syscalls are being handled regarding memory access permissions. The fact that it's about the requirements of syscalls (like needing read when only write is needed) points more towards a syscall error. The QEMU might be incorrectly checking the memory permissions for these syscalls, leading to an unnecessary read requirement. That's probably a syscall category issue. So the answer should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/570 b/results/classifier/qwen3:32b/reasoning/syscall/570 new file mode 100644 index 00000000..c9df4a69 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/570 @@ -0,0 +1,19 @@ +<think> +Okay, let's see. The user provided a bug report from QEMU, specifically a warning about "TIOCSER_TEMT" being redefined in termbits.h on line 276. The task is to classify this into one of the three categories: instruction, syscall, or runtime. + +First, I need to understand what the error is. The warning is about a redefinition of a macro or constant, TIOCSER_TEMT. That's a define in the header file. Redefinitions usually happen during compilation, not at runtime. + +Looking at the categories: instruction would be if there's a wrong CPU instruction, maybe an invalid opcode or something. Syscall would relate to system calls, like if the program is making a wrong system call or there's an error in handling syscalls. Runtime errors are issues that occur when the program is running, like crashes, memory issues, etc. + +Since this is a compilation warning about a redefinition in a header file, it's not an instruction error. It's also not a syscall error because it's about a macro definition. Compilation issues usually fall under build-time problems, but the given categories don't have a build category. The closest might be runtime if it causes a problem when running, but the warning itself is during compilation. However, the user's options are instruction, syscall, runtime. + +Wait, maybe the redefinition could lead to runtime issues if the macro has different values in different places. But the warning itself is during compilation. Since the categories don't include a build or compilation category, perhaps runtime is the closest, but I'm not sure. Alternatively, maybe syscall is related because TIOCSER_TEMT is a termios-related constant used in system calls. If the redefinition is causing incorrect values for a syscall, that might be a syscall category. + +But the problem is the redefinition of the macro. If the macro is used in a syscall, then maybe it's a syscall issue. For example, if the macro is part of a system call argument, then redefining it could cause incorrect syscalls. However, the warning is about the redefinition itself, not an error in the syscall handling. + +Hmm. The categories are instruction, syscall, runtime. The error is during compilation, but the categories don't have a build category. Since the user says "runtime: Other errors which happen in runtime," but this is a compile-time warning. However, maybe the redefinition could lead to runtime issues if the macro is used incorrectly. But the classification here is about the nature of the bug report. Since the warning is during compilation, but the available categories don't include build, perhaps it's considered a runtime issue if it affects the program's behavior when run. Alternatively, maybe it's a syscall issue if TIOCSER_TEMT is part of a syscall. + +Looking up TIOCSER_TEMT: it's a termios ioctl command, which is used in system calls. So if the macro is redefined, it might affect the syscall handling. Therefore, maybe this is a syscall category error. The redefinition could lead to incorrect values being passed in syscalls, causing issues. The warning is during compilation, but the root cause is related to syscall constants. Therefore, the category would be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/577 b/results/classifier/qwen3:32b/reasoning/syscall/577 new file mode 100644 index 00000000..66159c53 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/577 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The problem is about getdtablesize() returning a value that's too large in QEMU user mode on Linux/alpha. The user provided steps to reproduce, and the issue is that when running under QEMU, the return code is 1 instead of 0, indicating that getdtablesize() - 1 isn't a valid fd. + +First, getdtablesize() is a function that returns the maximum number of open file descriptors a process can have. The problem is that in QEMU's user mode emulation, this function is returning a value that's higher than what's actually supported. The key here is that when you subtract 1 from the returned value, it's supposed to be a valid fd, but under QEMU, it's not. + +Now, considering the categories: instruction, syscall, or runtime. + +The bug seems to be related to how QEMU emulates the system call for getdtablesize(). The function itself is part of the system call interface. The problem arises during the execution of the system call within QEMU's user mode. So it's likely a syscall issue because QEMU's handling of that specific system call might be incorrect. + +Alternatively, could it be a runtime error? Well, runtime errors are other errors during execution, but since this is specifically about a system call's return value being wrong, it's more about the syscall emulation. Instruction faults would be about incorrect CPU instructions, which isn't the case here. The code is correct on the alpha architecture, but QEMU's user mode isn't handling the syscall properly. So the category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/578 b/results/classifier/qwen3:32b/reasoning/syscall/578 new file mode 100644 index 00000000..4fe3090d --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/578 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an issue with the getdomainname() function in QEMU user mode on Linux/sparc64. The problem is that when they run their compiled program on an actual sparc64 machine, it works (printing "result: (none)"), but when they run it under QEMU, they get an error saying "Function not implemented". + +Hmm. The key here is that getdomainname() is a system call. The program is expecting that this system call will work, but QEMU isn't handling it properly. The user has provided steps to reproduce, including compiling the code with sparc64-linux-gnu-gcc and running it both on real hardware and under QEMU. The issue only occurs in QEMU. + +So, QEMU user mode emulates the system calls for the target architecture. If a system call isn't implemented in QEMU, then when the guest program (the sparc64 program in this case) tries to make that system call, QEMU can't translate it to the host's equivalent and thus returns an error. In this case, getdomainname() is not implemented in the QEMU user mode for sparc64 on Linux. + +The categories given are instruction, syscall, or runtime. Since the problem is that the system call isn't implemented in QEMU, leading to the error, this should be categorized under syscall. Instruction would be if there was a wrong instruction being executed, but here it's about handling the system call. Runtime errors are other issues during execution, but this is specifically a missing syscall implementation. So the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/579 b/results/classifier/qwen3:32b/reasoning/syscall/579 new file mode 100644 index 00000000..02ef3262 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/579 @@ -0,0 +1,13 @@ +<think> +Okay, let's try to figure out what category this bug report falls into. The problem is about the chown() function failing in QEMU user mode on Linux/sparc64. The user provided steps to reproduce, and the issue occurs when running the compiled program under QEMU, but not when running natively. + +First, the user compiles a C program (foo.c) with sparc64-linux-gnu-gcc, then runs it on a real sparc64 machine and gets 0, which is expected. But when using QEMU to emulate sparc64, the chown call returns "Operation not permitted" and exits with 1. + +The categories to choose from are instruction, syscall, or runtime. + +The key here is that the problem occurs specifically under QEMU. The chown() function in the program is a system call. When running under QEMU user mode, the system calls made by the emulated program are handled by QEMU, which translates them to the host's system calls. If QEMU isn't handling the chown syscall correctly for sparc64 emulation, that would be a syscall-related issue. + +Since the problem is that the syscall (chown) is failing when it should succeed, this points to an error in how QEMU is handling that particular system call. It's not about incorrect instructions (which would be more about CPU emulation), but about the system call interface. Therefore, the category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/602 b/results/classifier/qwen3:32b/reasoning/syscall/602 new file mode 100644 index 00000000..8212f609 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/602 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The problem is about translating host errno to target errno in IP_RECVERR and IPV6_RECVERR. The description says that in the translated control messages, the ee_errno isn't translated, so the guest sees the host's errno. For example, ECONNREFUSED is 111 on x86_64 but should be 146 in MIPS ABI. + +The steps to reproduce point to a specific CI test, and the code lines in QEMU's syscall.c. The fix example uses host_to_target_errno on the ee_errno field. + +So, the core issue is that when handling these socket options (IP_RECVERR etc.), QEMU isn't converting the errno value from the host's architecture to the target's. This is a system call related problem because it's about handling the parameters of a syscall (probably getsockopt or similar) where the error values need to be adjusted for the target architecture. + +The categories are instruction, syscall, or runtime. Since this is about syscall parameter translation, it's a syscall category. The problem isn't about a runtime error like a crash but rather incorrect handling of syscall arguments (errno values). So the classification should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/633 b/results/classifier/qwen3:32b/reasoning/syscall/633 new file mode 100644 index 00000000..cec308ce --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/633 @@ -0,0 +1,13 @@ +<think> +Okay, let's try to figure out the category for this bug. The user mentioned that the error is "Allocating guest commpage: Operation not permitted" when using qemu's i686-arm-user-static. They're running into issues with apt update failing due to GPG signature problems. + +The key part here is the error message about the commpage allocation. The commpage is a communication page used in some system calls, especially in certain architectures like ARM. The error says the operation isn't permitted, which makes me think it's a syscall-related issue. + +The user also mentioned that changing the sysctl parameter vm.mmap_min_addr helps. That sysctl is related to memory mapping, which is a system call. The fact that adjusting it affects the behavior suggests that the problem is with a system call during the mmap process. + +Additionally, when running gpgv through apt, there's an issue with the commpage allocation, but when running it directly, it works. This might be because the environment or the way the syscall is being made through the qemu user-static setup is different, leading to a permission problem. + +The problem seems to be in the interaction between qemu's user-mode emulation and the system calls being made by the processes. Since the error is about a syscall (mmap, perhaps) not being allowed, the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/654 b/results/classifier/qwen3:32b/reasoning/syscall/654 new file mode 100644 index 00000000..15dfcf04 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/654 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user provided a bug report about QEMU's strace log output being mangled. The problem is that syscall log entries are interrupted by other messages, making parsing difficult. They mentioned that in the mmap syscall, the log_page_dump function is called between the print_syscall and print_syscall_ret functions, which split the log entry. + +Looking at the possible categories: instruction, syscall, or runtime. + +The issue here seems to be related to how syscalls are logged. The problem arises because the logging for a syscall isn't atomic; other logs (like page dumps) can interleave between parts of the syscall log. The root cause is the split in the logging process for syscalls, specifically in the mmap case. Since the problem is about the syscall logging mechanism and how it's handled in QEMU, the correct category should be "syscall". + +It's not an instruction issue because there's no mention of incorrect CPU instructions. It's also not a general runtime error but specifically about syscall logging. So the answer is "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/690 b/results/classifier/qwen3:32b/reasoning/syscall/690 new file mode 100644 index 00000000..263ae830 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/690 @@ -0,0 +1,15 @@ +<think> +Okay, let's try to figure out how to classify this bug report. The user is saying that when running 32-bit qemu-arm-static on an x86_64 host, they can't run GCC due to a memory allocation error related to the guest commpage. The error message mentions "Operation not permitted" when trying to allocate memory. They also note that the problem started around QEMU version 5.1, and it's related to changes in the init_guest_space or subsequent commits. + +The user provided some details about the sysctl parameter vm.mmap_min_addr affecting the error. Depending on its value, different errors occur. For example, when the value is between 0-53248, there's no error. Between 53249-61440, it's a "Cannot allocate memory" error, and higher values lead to "Operation not permitted". + +Now, considering the categories: instruction, syscall, or runtime. + +The error seems to be related to memory mapping, which typically involves system calls like mmap. The commpage allocation is part of the guest's memory setup, which QEMU would handle via syscalls on the host. The fact that changing vm.mmap_min_addr affects the issue suggests that the problem is tied to how QEMU is making syscalls to allocate memory, possibly at a specific address range that's now restricted by the kernel's mmap_min_addr setting. + +Since the error is about memory allocation and the host's sysctl settings influence it, this sounds like a syscall issue. The QEMU process is making a syscall to mmap or similar, and the host kernel is denying it based on the configuration. The "Operation not permitted" error when the mmap_min_addr is set higher likely indicates that QEMU is trying to map memory below the allowed minimum, which the kernel blocks. + +The problem isn't about an incorrect instruction (which would be an 'instruction' category), nor is it a general runtime error. It's specifically tied to the syscall handling for memory allocation. Therefore, the correct category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/704 b/results/classifier/qwen3:32b/reasoning/syscall/704 new file mode 100644 index 00000000..bd504aa6 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/704 @@ -0,0 +1,17 @@ +<think> +Okay, let's see. The user is reporting a bug in QEMU with the message "misaligned address for type 'struct linux_dirent64'". Hmm, I need to figure out which category this falls into: instruction, syscall, or runtime. + +First, I remember that misaligned addresses usually have to do with memory alignment issues. The struct in question is linux_dirent64, which is related to directory entries in Linux. This struct is used in system calls like getdents64, which retrieves directory entries. + +Now, when dealing with system calls in QEMU, especially when emulating Linux system calls for different architectures, there might be issues with how data structures are handled. The error message mentions a misaligned address, which could be due to incorrect handling of the structure's alignment requirements. + +If the problem is in how QEMU translates or handles the system call, that would be a syscall error. For example, if the syscall is not correctly marshaling the data structure between the guest and host, leading to an alignment issue, then it's a syscall category. + +On the other hand, if it's a runtime error, that usually refers to issues that occur during the execution of the program, like segmentation faults or other runtime exceptions. But the specific mention of a misaligned address for a struct used in a system call makes me think it's more related to the syscall handling. + +Misaligned addresses can also be caused by incorrect instruction handling, but in this case, the struct is part of the syscall's data, so it's more likely a syscall issue. The error is about the address alignment of the data structure passed during a syscall, which suggests that the syscall's parameters are not being handled correctly. + +Therefore, the category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/817 b/results/classifier/qwen3:32b/reasoning/syscall/817 new file mode 100644 index 00000000..3fd73e77 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/817 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user mentioned a bug in QEMU related to the waitid system call. The issue is that when info.si_pid is zero, the target siginfo is left uninitialized. + +First, I need to figure out which category this falls into. The options are instruction, syscall, or runtime. + +The bug is about the waitid system call not initializing the siginfo structure properly under certain conditions. Since waitid is a system call, this seems like it's related to how the syscall is handled. The problem isn't with the instruction itself (like a wrong opcode or something), but rather how the syscall's data structure is managed. So it's probably a syscall error. + +Runtime errors are more about issues during program execution that aren't directly tied to specific syscalls, like memory leaks or logic errors. Since this is specifically a problem with the waitid syscall's handling, the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/829 b/results/classifier/qwen3:32b/reasoning/syscall/829 new file mode 100644 index 00000000..35dbdc5e --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/829 @@ -0,0 +1,13 @@ +<think> +Okay, let's tackle this bug report classification. The user is talking about an issue with QEMU's user space emulation, specifically with the openat() syscall. The problem seems to revolve around path translation when using sysroot. + +First, I need to understand what the user is saying. They mention that when using openat() in QEMU user mode, the paths are being prefixed with the sysroot, leading to incorrect behavior. The test case involves creating a file in /tmp, opening /tmp (which gets translated to SYSROOT/tmp), and then using openat with that file descriptor, which fails because the fd is pointing into the sysroot instead of the actual /tmp. + +The key here is the interaction between the sysroot path translation and the openat syscall. The issue isn't with the instruction itself, since the problem isn't about executing the wrong instruction. It's not a general runtime error either, because it's specifically tied to how system calls are handled. + +The problem arises because the emulation layer is modifying the paths for syscalls, but this modification is causing inconsistencies when file descriptors are reused in subsequent syscalls like openat. Since openat relies on the file descriptor's context (like the directory it refers to), incorrect path translation during the initial open would lead to failures in subsequent operations. This points directly to how the syscall is being emulated and the path handling within it. + +Therefore, this is a syscall-related issue. The error is in the way the syscall (specifically openat) is being processed in the user-space emulation, particularly with path translation involving sysroot. The problem isn't a runtime error in the general sense but specifically how the syscall is emulated. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/833 b/results/classifier/qwen3:32b/reasoning/syscall/833 new file mode 100644 index 00000000..db4cb277 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/833 @@ -0,0 +1,15 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU where the sendmsg system call fails when there's a zero-length iov but ancillary data is present. They provided a test case and mentioned that it works on native Linux but not under QEMU. The problem is that when running under QEMU, the sendmsg call that should have msg_iovlen=0 isn't being made, but instead, only the one with msg_iovlen=1 is. The strace output shows that in the native case, two sendmsg calls are made, but under QEMU, only one. + +So the key here is that QEMU isn't correctly handling the sendmsg system call when there's no I/O vector (iov) provided, even though there's ancillary data. The user says that the sendmsg call with msg_iovlen=0 is missing in QEMU. + +The possible categories are instruction, syscall, or runtime. + +The issue is with the sendmsg system call. The problem occurs when QEMU processes the sendmsg syscall. The native Linux kernel handles it correctly, but QEMU's emulation of the syscall isn't handling the case where there's no iov but there is ancillary data. + +So this is a syscall issue. The QEMU's syscall emulation isn't correctly handling the parameters, specifically when msg_iovlen is 0 but there's ancillary data. The user's problem is directly related to how the syscall is implemented or emulated in QEMU. + +It's not an instruction error because there's no mention of incorrect machine instructions. It's not a runtime error in the general sense, but specifically a syscall handling problem in QEMU. So the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/834 b/results/classifier/qwen3:32b/reasoning/syscall/834 new file mode 100644 index 00000000..36be3d61 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/834 @@ -0,0 +1,21 @@ +<think> +Okay, let's try to figure out how to categorize this bug report. The problem is about signals not being delivered properly when using pselect in a program run under QEMU. The user says that when running the test case via qemu, the signal handler isn't called even though the pselect is interrupted. + +First, I need to recall what pselect does. From what I remember, pselect is similar to select but it allows specifying a signal mask to be set atomically with the select call. This is useful for handling signals without race conditions. The program in question blocks SIGUSR1, then uses pselect with an empty signal mask, which should unblock it temporarily. When the signal is sent during pselect, the handler should be called upon returning. + +The issue here is that when running under QEMU, the signal isn't caught. The user mentions that QEMU's -strace shows the signal isn't received, but QEMU's own strace shows it's delivered. So the signal is being delivered to QEMU but not to the guest program. + +Now, considering the categories: instruction, syscall, or runtime. + +An instruction category bug would be related to incorrect CPU instructions being executed, maybe emulation issues. But this seems to be about system call handling. + +The syscall category is about errors in system calls. However, the problem here isn't that the system call itself is incorrect, but rather how QEMU handles the delivery of signals during the pselect system call. + +Runtime errors are other issues during program execution not covered by the other categories. However, since the problem is specifically about how QEMU handles the pselect system call and signal delivery, this seems more like a syscall handling issue in QEMU. + +Wait, but the problem is that the signal isn't being passed through correctly. The pselect system call in the guest is expecting to handle the signal, but QEMU isn't delivering it properly. That would be a problem in how QEMU emulates the system call behavior, particularly regarding signal handling. Since pselect is a system call, and QEMU's emulation of it isn't correctly handling the signal mask or delivery, this would fall under the syscall category. + +Therefore, the correct category is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/836 b/results/classifier/qwen3:32b/reasoning/syscall/836 new file mode 100644 index 00000000..46f6d9ab --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/836 @@ -0,0 +1,7 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU's RISC-V 32-bit emulator where the lseek() system call returns -14, which is EFAULT. The problem is that even when the file descriptor is correct, it's returning this error. The code provided uses syscall numbers for RISC-V, specifically using SYS_LSEEK. The steps to reproduce involve assembling and linking a test program, then running it with qemu-riscv32. + +The key here is that the issue is with the lseek syscall returning an incorrect error code. The user mentions that according to the man page, lseek shouldn't return EFAULT in this scenario. Since QEMU is the emulator in question here, and the problem is related to how the syscall is handled within QEMU, this would fall under the syscall category. The bug is in how QEMU processes the lseek system call for RISC-V, leading to an incorrect error code. It's not an instruction issue because the problem isn't about executing the wrong instruction, but rather handling the syscall parameters or the syscall itself incorrectly. It's also not a general runtime error but specifically a syscall handling problem. So the category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/856 b/results/classifier/qwen3:32b/reasoning/syscall/856 new file mode 100644 index 00000000..a59a65cb --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/856 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an occasional deadlock in QEMU's linux-user mode when running a threadcount test on sh4. The steps to reproduce involve setting up a Docker container, configuring QEMU with specific options, building it, and then running a test that sometimes deadlocks. + +Looking at the backtrace provided, there are multiple threads involved. The main thread (thread 1) is in safe_syscall_base, which is part of QEMU's safe syscall handling. Thread 2 is in a system call, specifically in syscall(), and it's related to qemu_futex_wait and call_rcu_thread. Thread 3 is also in safe_syscall_base, but with different parameters. + +The key here seems to be the use of futexes (fast user-space mutexes) and the RCU (Read-Copy-Update) mechanism. The threads are waiting on futexes, which suggests that there might be a problem with how QEMU is handling synchronization between threads, especially in the context of system calls. The deadlock might be due to a situation where threads are waiting on each other's locks or futexes, leading to a circular wait. + +The safe_futex function is part of QEMU's syscall handling, which wraps futex calls with error checking. The backtraces show that the threads are stuck in these futex operations. Since the issue is related to the handling of system calls and thread synchronization, this points towards a syscall-related problem. The runtime category is for other runtime errors, but since the problem is specifically tied to syscall handling and futexes, which are system calls, the correct category should be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/871 b/results/classifier/qwen3:32b/reasoning/syscall/871 new file mode 100644 index 00000000..23e4e50f --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/871 @@ -0,0 +1,17 @@ +<think> +Okay, let's see. The user is asking why qemu-x86_64 fails when trying to call unshare with CLONE_NEWUSER. The problem is that when they run the command through QEMU, it gives an "Invalid argument" error, but when they run it directly, it works. + +First, I need to understand what unshare does. The unshare command with --user creates a new user namespace. This is a Linux kernel feature that allows processes to have their own view of user IDs. So, when they run it normally, it works, but under QEMU, it doesn't. + +Now, QEMU is an emulator. When you run a binary with QEMU, it's emulating the CPU and other hardware. But user namespaces are a kernel feature. So, if QEMU is emulating an x86_64 environment, but the underlying host kernel might not support certain features required for user namespaces. + +Wait, but the user is running QEMU on the same system where the command works normally. So maybe QEMU isn't handling the unshare system call correctly. The unshare system call is a Linux syscall. When the program runs under QEMU, it's QEMU's job to correctly translate the x86 instructions into the host's architecture, but in this case, it's x86_64 on the same machine. Wait, maybe the QEMU system emulator vs user-mode? + +Wait, there's QEMU system mode and user mode. The qemu-x86_64 here is probably the user-mode emulator. But when you run a binary with qemu-x86_64, it's executing the x86_64 binary in user mode, which should still use the host's kernel system calls. However, user namespaces require certain kernel features. If the host kernel doesn't support user namespaces, or if QEMU is not properly passing the syscall through, that could cause an issue. + +But the user is able to run unshare directly, so the host kernel does support it. Therefore, the problem must be that QEMU is not handling the unshare syscall correctly when emulating the x86_64 user-space. Maybe QEMU's user-mode emulation doesn't fully support certain syscalls, or there's a bug in how it handles CLONE_NEWUSER. + +So, this seems like a syscall issue. The problem is that QEMU isn't correctly handling the unshare system call, leading to an invalid argument error. The user is using QEMU to run the binary, and the error occurs because QEMU isn't passing the syscall correctly to the host kernel. Therefore, the category would be syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/885 b/results/classifier/qwen3:32b/reasoning/syscall/885 new file mode 100644 index 00000000..7285c89d --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/885 @@ -0,0 +1,15 @@ +<think> +Okay, let's see. The user is reporting an issue with `getsockopt` on `SO_RCVTIMEO_NEW` and `SO_SNDTIMEO_NEW` where it writes an unexpected `int`. The question is to classify this bug into one of the categories: instruction, syscall, or runtime. + +First, I need to understand what these categories mean. The instruction category is for faulty instructions described in the bug report. That might be like incorrect assembly instructions or something related to CPU instructions. The syscall category is for errors with system calls. Since `getsockopt` is a system call, that's probably related. The runtime category is for other runtime errors not covered by the other two. + +The problem here is that `getsockopt` is a system call used to retrieve options on a socket. The specific options `SO_RCVTIMEO_NEW` and `SO_SNDTIMEO_NEW` are for getting the receive and send timeout settings. The user says that when using `getsockopt` with these options, it writes an unexpected `int`. This suggests that the system call is returning an integer when perhaps it should be returning a structure, or vice versa. + +In Linux, socket options can have different data types. For example, some options might require a `struct timeval` for timeout values. If the code is expecting an `int` but the system call is returning a `struct timeval` (or something else), that would cause a type mismatch. Alternatively, maybe the code is passing a buffer of incorrect size. + +Since `getsockopt` is a system call, any error in how it's being used or how it's implemented would fall under the syscall category. The issue here seems to be about the system call's behavior, specifically how it handles these options. The problem isn't with the CPU instructions themselves but rather with the system call interface and its usage. + +Therefore, the correct classification should be "syscall". +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/911 b/results/classifier/qwen3:32b/reasoning/syscall/911 new file mode 100644 index 00000000..36fad84a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/911 @@ -0,0 +1,7 @@ +<think> +Okay, let me try to figure out how to categorize this bug report. The user is having trouble with strace not showing execve syscalls when using QEMU in mipsel user mode. They mentioned that in older versions like 4.2.1, it worked, but in 6.2.0 and newer, it doesn't. The problem seems to be that the safe_execve function isn't returning, so the strace output for execve isn't completed. + +Hmm. The key here is that the issue is specifically with the execve syscall not being traced properly. The user is using strace to monitor system calls, and execve is missing from the output. The problem appears to be related to how QEMU handles the execve syscall in user mode, particularly in newer versions. Since execve is a system call, and the issue is about tracing it, this seems like a syscall-related problem. The fact that older versions worked suggests a regression in how the syscall is handled or traced in newer QEMU versions. The user's configuration and build steps are correct, so it's not an instruction or runtime error. The core of the issue lies in the syscall tracing mechanism within QEMU. So the category should be 'syscall'. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/927 b/results/classifier/qwen3:32b/reasoning/syscall/927 new file mode 100644 index 00000000..bd70733f --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/927 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is reporting a bug in QEMU's linux-user mode. The problem is that when using openat on /proc/self/exe, it returns a closed file descriptor. The description mentions that when qemu-user is executed as an interpreter with a file descriptor in AT_EXECFD, the open call returns a closed fd. + +So, the key here is that the file descriptor is being closed during the initialization process of QEMU. The code path involves load_elf_binary and load_elf_image, which close the fd provided via AT_EXECFD. Then, when do_openat in syscall.c returns that same fd to the user, it's already closed. The user program then uses it, leading to issues when they try to use it again. + +The steps to reproduce show a C program that opens /proc/self/exe and /dev/null, printing their fd numbers. In the environment using QEMU (like Docker on arm64 Mac), the first fd (selfexe) is 3, but since it's closed, subsequent opens might reuse it, leading to unexpected behavior. + +The categories to choose from are instruction, syscall, or runtime. The issue here is related to how the syscall (open) is handled in QEMU's user mode. Specifically, the do_openat function in syscall.c is returning an fd that was already closed during the loading process. This seems to be a problem with how the syscall is implemented in QEMU, leading to incorrect fd handling. + +So, the category would be "syscall" because the error is in the handling of the open syscall within QEMU's user mode. The problem isn't a runtime error in the general sense, nor is it about a specific instruction. It's about the syscall's implementation returning an invalid fd. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/95 b/results/classifier/qwen3:32b/reasoning/syscall/95 new file mode 100644 index 00000000..de026acd --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/95 @@ -0,0 +1,21 @@ +<think> +Okay, let's see. The user is talking about a bug in QEMU where a Linux user-mode setup can't handle a guest setting a very small RLIMIT_AS. The problem is causing a hang when running gnutls28 and a coreutils configure check. + +So, first, I need to remember what RLIMIT_AS is. It's the maximum size of the process's virtual address space. If the guest is setting this limit too low, maybe the QEMU user-mode is not handling that correctly. The user says it's hanging, not crashing or giving an error. + +Now, the categories are instruction, syscall, or runtime. + +Instruction would be something like executing the wrong instruction, maybe an invalid or unsupported one. Syscall would be related to system calls being handled incorrectly. Runtime is other runtime errors. + +The RLIMIT_AS is a resource limit that affects how much memory a process can allocate. When a program tries to allocate memory beyond that limit, the system call (like malloc or brk) would fail. But in this case, the issue is that QEMU's user-mode isn't handling the guest setting a very low RLIMIT_AS, leading to a hang. + +If QEMU is supposed to enforce the guest's RLIMIT_AS but doesn't do it correctly, maybe when the guest sets it very low, QEMU fails to simulate the correct behavior. So when the guest program tries to allocate memory, the host's syscall might be allowed to proceed, but the guest's limit isn't being checked, leading to a situation where the program might be trying to allocate memory, but the host's system call is either blocking or not responding as expected, causing a hang. + +This seems to be a problem with how QEMU handles system calls related to resource limits. So the error is in the syscall handling. The QEMU user-mode is supposed to intercept and manage syscalls from the guest, and if it's not correctly applying the RLIMIT_AS, that's a syscall-related issue. + +Alternatively, if it's a runtime error, maybe a logic error in the code that handles resource limits. But since the problem arises when the guest sets a specific syscall (setting RLIMIT_AS), and QEMU's handling of that syscall is incorrect, leading to a hang, I think it's more of a syscall category. + +So the answer is syscall. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/957 b/results/classifier/qwen3:32b/reasoning/syscall/957 new file mode 100644 index 00000000..40929260 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/957 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an issue with qemu-m68k where Python crashes with a "futex facility returned an unexpected error code" message. The problem seems to be related to system calls, specifically futex calls. The error occurs during the build of Python, and they provided some strace output. + +Looking at the strace log, there are multiple futex calls with error codes like 22 (Invalid argument). The futex system call is used for thread synchronization in Linux. The error suggests that the arguments passed to futex are invalid. Since QEMU is the emulator here, it's possible that QEMU isn't correctly handling the futex system calls for the m68k architecture. + +The user mentioned that using QEMU's -systrace option reduces the probability, which might be because it changes how syscalls are handled or traced. The problem isn't with the Python code itself but rather how QEMU is emulating the system calls. The error is happening at runtime when the program (Python) is using futex, which is a syscall. + +The categories are instruction, syscall, or runtime. Since the issue is directly related to the futex syscall and the error is about invalid arguments in that syscall, this should be classified as a syscall issue. The problem isn't with the instruction set emulation but with how the syscall is being processed by QEMU. +</think> + +syscall \ No newline at end of file diff --git a/results/classifier/qwen3:32b/reasoning/syscall/982 b/results/classifier/qwen3:32b/reasoning/syscall/982 new file mode 100644 index 00000000..656c842a --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/syscall/982 @@ -0,0 +1,13 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU's --strace option incorrectly decoding the arguments for the writev syscall when running 64-bit binaries on a 32-bit machine. Hmm. + +First, I need to understand what's going on here. The problem is that when they use strace with QEMU, the arguments for writev aren't shown correctly. But the actual syscall works as expected because the program's output is correct. The key here is that the tracing part (strace) is showing wrong argument values, but the execution is fine. + +Looking at the steps to reproduce, they compiled the same code for different architectures (i686, x86_64, aarch64) and ran them with QEMU. When using --strace, the output for writev shows incorrect arguments. For example, the 32-bit binary's strace output via qemu-i386 shows "0x407ffe54" which seems okay, but for the 64-bit binaries run under qemu-x86_64 and qemu-aarch64, it's showing "(nil)" and some address. But the actual data is still written correctly, so the syscall itself is working, just the tracing is wrong. + +So the issue is in how QEMU is intercepting and printing the syscall arguments for strace. The problem is not with the syscall execution itself but with the way QEMU is decoding and displaying the arguments when using --strace. That points to a problem in the syscall handling part of QEMU, specifically in the code that's responsible for logging the system calls when tracing is enabled. + +The categories given are instruction, syscall, or runtime. Since the error is in how the syscall arguments are being traced, not in the execution of the instruction or a runtime error, the correct category should be syscall. The issue is with the syscall's argument decoding in QEMU's strace functionality. +</think> + +syscall \ No newline at end of file |