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Diffstat (limited to 'results/classifier/deepseek-2-tmp/reasoning/assembly/1727737')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/reasoning/assembly/1727737 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2-tmp/reasoning/assembly/1727737 b/results/classifier/deepseek-2-tmp/reasoning/assembly/1727737 new file mode 100644 index 000000000..c10c83e5e --- /dev/null +++ b/results/classifier/deepseek-2-tmp/reasoning/assembly/1727737 @@ -0,0 +1,27 @@ +<think> +Alright, let's try to figure out what category this bug report falls into. The user is experiencing a problem with QEMU where certain GCC sanitizer tests are timing out when run under QEMU starting from version 2.8 onwards. It worked fine in version 2.7 but failed in 2.8 and beyond. + +The user provided details about the test case, including an executable and various libraries. They also mentioned that using the `-d in_asm` option shows QEMU stalling at a specific assembly instruction: `0x40b6eb44: e08f4004 add r4, pc, r4`. + +Looking at the possible categories: mistranslation, assembly lowering, and others like device, graphic, network, etc. Since the issue is related to QEMU stalling during execution of an ARM instruction, it's likely tied to how instructions are being translated or executed. + +The fact that it worked in 2.7 but not in 2.8 suggests a regression introduced between these versions. The assembly instruction provided is from the ARM architecture, so it's part of the user-mode translation. Mistranslation would mean QEMU incorrectly maps the source architecture (like x86) to IR or target code, leading to incorrect execution. However, in this case, since we're dealing with an ARM executable, maybe the issue is more about how assembly instructions are handled during lowering. + +Assembly lowering is part of the compiler's job, but here it's QEMU that might be mishandling the instruction. Wait, no—QEMU acts as a hypervisor or emulator, translating host instructions to target (like ARM) on the fly. If an instruction isn't being translated correctly, it could cause hangs or stalls. + +The specific instruction `add r4, pc, r4` is a bit unusual. In ARM, PC is often used for program flow, so perhaps QEMU's translation of this instruction is causing issues. Maybe there's a bug in how the translator handles this particular opcode, leading to an infinite loop or deadlock. + +Looking at the categories again: 'assembly' might be too generic. 'mistranslation' seems more precise because it's about incorrect mapping from source (host) architecture to target (ARM). Alternatively, it could be related to how QEMU handles device emulation, but that's less likely since the issue is during user-mode execution. + +Wait, no—the user didn't mention any hardware devices, just the program stalling. So 'assembly' or 'mistranslation' seems more fitting. But in QEMU terms, 'assembly lowering' refers to generating target code from IR, which might not be the exact point here since this is a bug manifesting at runtime. + +Alternatively, perhaps it's related to how the hypervisor handles certain instructions, making it a hypervisor issue. But the primary problem seems to be with instruction translation rather than the hypervisor itself. + +Given that, I think 'assembly' is more appropriate because the stall happens during the execution of an ARM assembly instruction, which suggests a problem in the translation or handling of that specific instruction by QEMU's CPU emulator. +</think> + +The bug report involves QEMU stalling on an ARM assembly instruction when running under certain versions. The issue likely stems from how the instruction is translated or executed within the emulator, pointing to a problem in the assembly lowering process. + +**Answer:** + +assembly \ No newline at end of file |