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Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/instruction/1233225')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/instruction/1233225 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/instruction/1233225 b/results/classifier/qwen3:32b/reasoning/instruction/1233225 new file mode 100644 index 000000000..8bd7b8f83 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/instruction/1233225 @@ -0,0 +1,17 @@ +<think> +Okay, let's try to figure out the category for this QEMU bug report. The user is having an issue where a float division in a MIPS/MIPSel Linux binary runs correctly in full emulation but gives the wrong result in QEMU user mode. The problem is specifically with the division resulting in 2.0 instead of 0.5 when using QEMU user mode. + +First, I need to recall what QEMU user mode does. It allows running binaries from another architecture on the host system without emulating the whole OS. So, for example, running a MIPS binary on an x86 host. The user mentioned that when they run the same binary in a fully emulated Debian environment (using QEMU system mode), it works correctly. But when using QEMU user mode, it's broken. + +The key here is that the issue is related to floating-point division. The code is straightforward: dividing an integer by a double. The problem is that the result is wrong in user mode. Since the same binary works when run natively or in full emulation, the problem is specific to QEMU's user mode emulation. + +Now, thinking about possible causes. Floating-point operations can be tricky. QEMU user mode needs to correctly emulate the CPU's floating-point unit (FPU). If the FPU emulation is incorrect, especially for division, that could lead to such errors. This would fall under the "instruction" category because it's about the correct execution of CPU instructions. The division instruction for floating-point might not be handled properly in QEMU's user mode for MIPS. + +Another angle: syscalls. But in this code, the main operation is a floating-point calculation, not a system call. The printf is a standard function that uses syscalls, but the division itself is part of the program's logic, not a syscall. So the issue isn't with a specific system call but with how the instruction (specifically, the floating-point division instruction) is executed by QEMU in user mode. + +Runtime errors could be things like dynamic linking issues or library problems, but the user tested the same binary in different environments. The cross-compiled binary works in full emulation and natively, so the problem isn't with the runtime libraries but with the emulation of the CPU instructions in user mode. + +Therefore, the problem is likely due to a faulty emulation of the floating-point division instruction in QEMU's user mode for MIPS. Hence, the category should be "instruction". +</think> + +instruction \ No newline at end of file |