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Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/syscall/1895305')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/syscall/1895305 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/syscall/1895305 b/results/classifier/qwen3:32b/reasoning/syscall/1895305 new file mode 100644 index 000000000..d71a7ca4a --- /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 |