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Diffstat (limited to 'results/classifier/deepseek-r1:14b/reasoning/mistranslation/2487')
| -rw-r--r-- | results/classifier/deepseek-r1:14b/reasoning/mistranslation/2487 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:14b/reasoning/mistranslation/2487 b/results/classifier/deepseek-r1:14b/reasoning/mistranslation/2487 new file mode 100644 index 00000000..3da49f27 --- /dev/null +++ b/results/classifier/deepseek-r1:14b/reasoning/mistranslation/2487 @@ -0,0 +1,23 @@ +<think> +Okay, I need to classify this bug report for QEMU. Let me start by reading the problem description carefully. + +The user reports that when running a simple x86_64 executable under QEMU's ppc64 emulator (qemu-x86_64), QEMU crashes with an error in tcg-target.c.inc at line 1777, specifically in tcg_out_test. The error message says "code should not be reached," which suggests that there might be a problem in the generated code or in how the TCG (Translation Coupled Guest) is handling certain instructions. + +Looking at the provided files, test1 and test2 are simple static executables built with different toolchains but both x86_64. The user tested them against QEMU version 9.0.50 based on commit 15957eb9ef, which includes a change related to using TSTEQ/TSTNE instructions for testing low bits in the i386 target. + +The steps to reproduce involve building QEMU for ppc64 and running any simple x86_64 executable. The crash happens consistently with this setup. + +Bisecting the issue points to commit 15957eb9ef by Paolo Bonzini, which modifies how certain comparisons are handled in the i386 target using TSTEQ and TSTNE instead of other methods. This change likely affects the translation code for x86_64 instructions when emulated on PPC64. + +Now, considering the categories: The bug occurs during execution when QEMU tries to run user-mode code (since it's a simple executable). The error is in the TCG code generation, specifically in testing logic. This seems related to how the guest instructions are translated into host (PPC64) instructions. Since the problem arises from changes in i386's translation code affecting the TCG output, it points towards an issue in assembly lowering or instruction mapping. + +The possible categories include 'mistranslation' and 'assembly'. Mistranslation refers to incorrect semantic mapping from source architecture (x86_64) to IR/target (PPC64), which is happening here because the TCG code is generating unreachable code. This could be due to an error in how certain instructions are translated, possibly related to the recent changes using TSTEQ/TSTNE. + +Alternatively, 'assembly' relates to assembly lowering issues, but since the problem seems more about the translation logic rather than the generated assembly itself, 'mistranslation' might be a better fit. The crash occurs during the generation of code for testing (tcg_out_test), which is part of the TCG process, so it's more about how the source architecture's instructions are being translated into the target's instruction set. + +Other categories like 'network', 'graphic', or 'kernel' don't seem relevant here. The issue is in the user-mode emulation and translation layer, not in device drivers, graphical interfaces, or kernel-related code. + +Therefore, the most appropriate category for this bug report is 'mistranslation'. +</think> + +mistranslation \ No newline at end of file |