diff options
Diffstat (limited to 'results/classifier/deepseek-r1:32b/reasoning/syscall/1462640')
| -rw-r--r-- | results/classifier/deepseek-r1:32b/reasoning/syscall/1462640 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:32b/reasoning/syscall/1462640 b/results/classifier/deepseek-r1:32b/reasoning/syscall/1462640 new file mode 100644 index 00000000..fd2e810f --- /dev/null +++ b/results/classifier/deepseek-r1:32b/reasoning/syscall/1462640 @@ -0,0 +1,20 @@ +<think> +Okay, I need to classify this bug report as either an instruction, syscall, or runtime issue within QEMU. Let me go through it step by step. + +The user is running a 32-bit MIPS program on a 64-bit x86 host using QEMU. The problem occurs when the program calls `shmat()`, which fails. They provided a small test case where compiling the code as 32-bit (using `-m32`) causes `shmat()` to fail with a pointer of -1, while compiling as 64-bit works fine. + +From their explanation, QEMU uses `mmap` with the `MAP_PRIVATE` flag when reserving memory for a 32-bit guest. However, `shmat()` requires using `MAP_SHARED`. This mismatch causes the failure because `shmat()` can't modify the existing mapping from private to shared. + +The issue seems related to how QEMU handles memory mappings for different architectures and how system calls interact with those mappings. Specifically, it's about how the `mmap` flags are set and whether they allow subsequent `shmat()` calls to succeed. + +Looking at the possible categories: +- **Instruction**: This refers to an incorrect instruction being executed. The problem here isn't due to a specific CPU instruction but rather system call handling. +- **Syscall**: This involves errors with system calls. Since `shmat()` is a syscall that fails, and it's related to how QEMU manages the memory mappings, this seems relevant. +- **Runtime**: General runtime issues not tied directly to instructions or syscalls. + +The core issue is that the `mmap` flags set by QEMU conflict with what `shmat()` expects. Therefore, the problem arises during system call handling within the guest environment provided by QEMU. This makes it a syscall-related bug because it's about how the syscall interacts with memory management in QEMU. +</think> + +The issue is related to how QEMU handles system calls involving memory mappings and their flags. Specifically, `shmat()` fails due to incompatible `mmap` settings. + +**Answer:** syscall \ No newline at end of file |