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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-06 16:43:19 +0000 |
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| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-06 16:43:19 +0000 |
| commit | 238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd (patch) | |
| tree | cd8a1b75ba7b3543eb7fe6857f408e7be4d9fd0b /results/classifier/deepseek-r1:32b/reasoning/instruction/1095857 | |
| parent | 96049c939b1916d80532630d63c14e04d5244f1d (diff) | |
| download | qemu-analysis-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.tar.gz qemu-analysis-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.zip | |
add results
Diffstat (limited to 'results/classifier/deepseek-r1:32b/reasoning/instruction/1095857')
| -rw-r--r-- | results/classifier/deepseek-r1:32b/reasoning/instruction/1095857 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:32b/reasoning/instruction/1095857 b/results/classifier/deepseek-r1:32b/reasoning/instruction/1095857 new file mode 100644 index 000000000..08ff83b57 --- /dev/null +++ b/results/classifier/deepseek-r1:32b/reasoning/instruction/1095857 @@ -0,0 +1,21 @@ +<think> +Okay, so I need to figure out how to classify this bug report for QEMU. Let me read through it carefully. + +The user describes an issue where, when executing certain instructions like "mov eax, [r15d]" in Long Mode (x86-64), the instruction ends up being treated as "mov eax, [r15]". According to the x86 programmer manuals, using an Address-Size override in long mode should ignore the high 32 bits of the register. The user is leveraging this behavior in their operating system to save on register usage by storing other data in the high 32 bits of r15. + +However, a general protection exception occurs because the resulting memory address isn't "canonical". This doesn't always happen because sometimes the high 32 bits aren't zero. The user is pointing out that QEMU isn't handling this correctly, leading to exceptions when it shouldn't. + +So, I need to classify this under one of three categories: instruction, syscall, or runtime. + +Let me think about each category: + +- **Instruction**: This relates to how instructions are handled or executed by the processor. +- **Syscall**: Issues related to system calls. +- **Runtime**: Errors that occur during program execution that aren't necessarily tied to a specific instruction or syscall. + +In this case, the problem is with how QEMU handles an instruction. Specifically, it's not correctly interpreting the Address-Size override for the instruction "mov eax, [r15d]". Instead of using only the lower 32 bits of r15 (as per the override), it's using the full 64 bits, leading to non-canonical addresses and exceptions. + +This seems like an issue with how QEMU processes instructions. It's not a problem with a system call or a runtime error in general; it's about incorrect handling of a specific instruction's address mode. +</think> + +instruction \ No newline at end of file |