diff options
Diffstat (limited to 'results/classifier/deepseek-r1:14b/reasoning/mistranslation/1416988')
| -rw-r--r-- | results/classifier/deepseek-r1:14b/reasoning/mistranslation/1416988 | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:14b/reasoning/mistranslation/1416988 b/results/classifier/deepseek-r1:14b/reasoning/mistranslation/1416988 new file mode 100644 index 000000000..6e0956506 --- /dev/null +++ b/results/classifier/deepseek-r1:14b/reasoning/mistranslation/1416988 @@ -0,0 +1,30 @@ +<think> +Alright, I need to classify this bug report related to QEMU into one of the given categories. Let's break down what the issue is. + +The user reported problems with QEMU when running GCC tests on aarch64. Specifically, they're getting segmentation faults or infinite loops. The error message mentions an uncaught target signal 11, which is a segmentation fault. + +Looking deeper, the problem seems to stem from an ABI incompatibility between the Linux kernel and QEMU's aarch64 emulation. The user pointed out that the sizes of `struct siginfo` differ: 136 bytes in QEMU versus 128 bytes in the kernel. This discrepancy is causing issues during signal handling. + +The root cause identified is an incorrect definition of `TARGET_SI_PAD_SIZE` in `linux-user/syscall_defs.h`. The current calculation is `(TARGET_SI_MAX_SIZE / sizeof(int)) - 3`, whereas in the Linux kernel, it's computed differently using `SI_MAX_SIZE` and `__ARCH_SI_PREAMBLE_SIZE`. + +So, this issue is related to signal handling in QEMU. Since signals are part of the operating system's kernel functionality, but in this case, it's within QEMU's user-mode emulation, which likely falls under how QEMU handles system calls and their structures. + +Considering the categories provided: 'mistranslation' involves incorrect semantic mappings from source to target architecture. Here, the issue is about struct size mismatches during signal handling, which affects the translation of signals between host and target systems. This seems closely related to how QEMU translates or maps these structs, hence a mistranslation error. + +Other categories like 'kernel', 'device', or 'network' don't fit as well because the problem isn't with device drivers or network handling but specifically with signal information structures. + +Therefore, the most appropriate category is 'mistranslation'. +</think> + +The bug report describes an issue where QEMU's aarch64 emulation incorrectly handles signal information structs, leading to segmentation faults. This stems from a mismatch in the size of `struct target_siginfo` between QEMU and the Linux kernel. The problem arises due to an incorrect definition of `TARGET_SI_PAD_SIZE`, which affects how signals are translated during emulation. + +**Step-by-Step Explanation:** + +1. **Issue Identification:** Segmentation faults when running tests under QEMU-aarch64. +2. **Root Cause Analysis:** Size mismatch between `struct siginfo` in the kernel and QEMU's `target_siginfo`. +3. **Technical Detail:** The difference is due to incorrect calculation of `TARGET_SI_PAD_SIZE`, which affects signal handling structures during translation. +4. **Category Fit:** This relates to how QEMU translates system calls and structs from the host to target architecture, pointing to a mistranslation error. + +**Answer:** + +mistranslation \ No newline at end of file |