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Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/instruction/1832422')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/instruction/1832422 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/instruction/1832422 b/results/classifier/qwen3:32b/reasoning/instruction/1832422 new file mode 100644 index 000000000..666f97766 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/instruction/1832422 @@ -0,0 +1,9 @@ +<think> +Okay, let's see. The user is reporting a bug in QEMU related to SSE comparison operations using an 8-bit immediate. The problem is that when the immediate value is oversized, it throws a SIGILL. The example given is the cmppd instruction with an immediate of 0xd1. According to the documentation, only certain bits are used (bits 2:0 for SSE, 4:0 for AVX). The current QEMU code checks if the value is >=8 and triggers an illegal instruction signal, but the correct approach should be to mask the immediate to the relevant bits. + +So, the issue is that QEMU isn't handling the immediate value correctly. Instead of masking it to the valid bits, it's checking if it's out of the 0-7 range, which causes a SIGILL for values like 0xd1 (which is 13 in decimal, so definitely >=8). The fix would involve masking the immediate to the lower bits as per the instruction's encoding rules. + +Now, the categories are instruction, syscall, or runtime. Since this is about an instruction's handling, specifically the SSE cmppd instruction's immediate value processing, the correct category should be "instruction". The problem lies in how the instruction is decoded or executed, not in a system call or general runtime error. The SIGILL is a result of incorrect instruction handling, so it's an instruction-related bug. +</think> + +instruction \ No newline at end of file |