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Diffstat (limited to 'results/classifier/deepseek-r1:32b/reasoning/instruction/2604')
| -rw-r--r-- | results/classifier/deepseek-r1:32b/reasoning/instruction/2604 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:32b/reasoning/instruction/2604 b/results/classifier/deepseek-r1:32b/reasoning/instruction/2604 new file mode 100644 index 00000000..dc34c2e5 --- /dev/null +++ b/results/classifier/deepseek-r1:32b/reasoning/instruction/2604 @@ -0,0 +1,23 @@ +<think> +Okay, so I'm trying to classify this bug report related to QEMU. The user provided some details about the crash when running NEON code under `qemu-arm-static`. Let me go through the information step by step. + +First, they mentioned that `qemu-arm-static` crashes 100% of the time when executing generated NEON code. This specifically happens with GStreamer's Orc library using NEON codegen in user emulation mode. When run in system emulation mode, it works fine. So there's a difference between how user and system modes handle this. + +Looking at the steps to reproduce: they cloned the Orc repository, built it statically, and ran `qemu-arm-static` on the compiled tool. The crash occurs inside JIT code, which suggests that the issue is related to just-in-time compilation or execution of generated machine code. + +The backtrace shows a segmentation fault at address 0x409e503c, but there's no function name attached. Disassembling around that address reveals NEON instructions: `vld1.8`, `vst1.8`, and some additions. The crash is happening on the next instruction after these, which is an addition (`add r3, r3, #16`). + +Since it's a segmentation fault without any indication of invalid memory access (the disassembled code doesn't show anything like an illegal address), I suspect it might be related to how QEMU handles NEON instructions or JIT compilation. Maybe there's an issue with how the generated code is being handled by QEMU in user mode, such as incorrect instruction decoding or handling. + +The possible categories are instruction, syscall, and runtime. The crash isn't due to a syscall error because it's happening within the generated JIT code. It also doesn't seem like a memory access violation since GDB didn't report that. So it's more likely related to how instructions are being handled. + +The fact that the same executable works in system mode suggests that user mode has a different handling of NEON or JIT-generated code. Perhaps there's an issue with instruction decoding or invalidation in user emulation mode, leading QEMU to crash when encountering certain NEON sequences. + +So, considering all this, the category is likely "instruction" because it's about how specific instructions (NEON) are being handled by QEMU. +</think> + +The bug report describes an issue where `qemu-arm-static` crashes while executing generated NEON code. The problem arises during JIT execution and involves specific NEON instructions. This indicates a potential flaw in how these instructions are processed or decoded within the user emulation mode of QEMU. + +**Category: instruction** + +instruction \ No newline at end of file |