diff options
Diffstat (limited to 'results/classifier/deepseek-1/reasoning/mistranslation/1916269')
| -rw-r--r-- | results/classifier/deepseek-1/reasoning/mistranslation/1916269 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/deepseek-1/reasoning/mistranslation/1916269 b/results/classifier/deepseek-1/reasoning/mistranslation/1916269 new file mode 100644 index 00000000..9973d992 --- /dev/null +++ b/results/classifier/deepseek-1/reasoning/mistranslation/1916269 @@ -0,0 +1,15 @@ +<think> +Okay, I need to classify this bug report into one of the given categories. Let me read through the problem again. + +The user is reporting an issue with QEMU when running FreeBSD under TCG acceleration with a Nehalem CPU. The problem occurs when executing the CRC32 instruction, which triggers an FPU exception. They mention that without TCG (using default or KVM), it doesn't happen, so it's specific to TCG. + +Looking at the code provided, there's a check in translate.c for the TS flag and raises an exception if set. However, according to Intel's documentation, CRC32 should work regardless of the TS bit. So QEMU is incorrectly raising an exception for this instruction when using TCG. + +The categories available are mistranslation, assembly lowering, other, device, graphic, socket, network, KVM, boot, vnc, debug, files, permissions, performance, kernel, peripherals, hypervisor. + +This issue seems related to how QEMU translates the CRC32 instruction into TCG. The bug occurs during the translation process where an incorrect exception is being generated because of a misunderstanding of the TS flag's effect on CRC32. Since this involves incorrect semantic mapping from x86 to the target (TCG), it falls under 'mistranslation'. +</think> + +The issue is caused by QEMU incorrectly raising an exception for the SSE4.2 CRC32 instruction when using TCG acceleration, which relates to how instructions are translated. + +**Category:** mistranslation \ No newline at end of file |