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Diffstat (limited to 'results/classifier/deepseek-r1:32b/reasoning/instruction/2078')
| -rw-r--r-- | results/classifier/deepseek-r1:32b/reasoning/instruction/2078 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:32b/reasoning/instruction/2078 b/results/classifier/deepseek-r1:32b/reasoning/instruction/2078 new file mode 100644 index 000000000..6af7710b4 --- /dev/null +++ b/results/classifier/deepseek-r1:32b/reasoning/instruction/2078 @@ -0,0 +1,19 @@ +<think> +Okay, so I have this problem where QEMU crashes when running certain arithmetic operations on the m68k target. The user provided some code examples that cause this crash. Let me try to figure out what's going on here. + +First, looking at the C program they provided: it divides INT_MIN by a divisor, which is -1 in their example. On many systems, dividing INT_MIN by -1 can cause issues because INT_MIN is the smallest integer, and dividing it might not fit into the same type without causing an overflow or undefined behavior. + +The second example is an assembly snippet using m68k instructions: move.l #-2147483648,%d0; move.l #-1,%d1; divsl.l %d1,%d1:%d0. The number -2147483648 is indeed INT_MIN for a 32-bit integer, which is the same as in the C example. + +So, both examples are causing a division operation that might result in an overflow or trap because dividing the minimum integer by -1 could exceed the representable range. Now, in QEMU, when such operations occur, it's supposed to handle traps or exceptions gracefully, but instead, it crashes with SIGFPE (Floating Point Exception). That suggests there's a problem with how QEMU handles these arithmetic operations that trap. + +Looking at the possible categories: instruction, syscall, runtime. The issue seems related to how QEMU handles specific instructions, particularly when they cause exceptions like division by zero or overflow. The crash is due to an unhandled exception in the guest causing QEMU itself to crash instead of properly trapping and handling it. + +So, this isn't about a faulty syscall or a general runtime error; it's specifically about how certain instructions are handled during execution. Therefore, the category should be 'instruction'. +</think> + +The bug is caused by how QEMU handles specific arithmetic operations that result in traps on the m68k target, leading to a crash instead of proper exception handling. + +(instruction) + +instruction \ No newline at end of file |