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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/1713066 | |
| parent | 96049c939b1916d80532630d63c14e04d5244f1d (diff) | |
| download | emulator-bug-study-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.tar.gz emulator-bug-study-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.zip | |
add results
Diffstat (limited to 'results/classifier/deepseek-r1:32b/reasoning/instruction/1713066')
| -rw-r--r-- | results/classifier/deepseek-r1:32b/reasoning/instruction/1713066 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:32b/reasoning/instruction/1713066 b/results/classifier/deepseek-r1:32b/reasoning/instruction/1713066 new file mode 100644 index 00000000..87702ec7 --- /dev/null +++ b/results/classifier/deepseek-r1:32b/reasoning/instruction/1713066 @@ -0,0 +1,23 @@ +<think> +Alright, so I need to classify this bug report into one of three categories: instruction, syscall, or runtime. Let me go through the information provided to figure out where it fits best. + +The bug report talks about an issue with the ldp instruction in QEMU when running on aarch64 architecture. The problem occurs when loading two 64-bit values from memory where each register is loaded from different pages, and one of those pages is unmapped. This leads to an exception being raised, but after handling it, the OS tries to rerun the instruction, causing another error because x0 has already been updated. + +The user references section D.1.14.5 of the ARMv8 manual, which states that on taking an exception, registers used in address generation should be restored to their initial values. However, in this case, x0 is being changed, leading to incorrect behavior when retrying the instruction. + +They mention observing this issue while running FreeBSD with a specific memcpy implementation using similar instructions and saw it in different versions of QEMU. The problem seems to stem from how exceptions are handled during multi-register loads, specifically with the ldp instruction. + +Now, looking at the categories: + +- **Instruction**: This would involve issues directly related to how individual instructions are executed or translated. +- **Syscall**: Issues related to system calls or their handling. +- **Runtime**: Errors that occur during runtime but aren't tied to specific instructions or syscalls. + +The problem here is clearly tied to the execution of the ldp instruction and how QEMU handles exceptions in this context. It's about how registers are updated before an exception occurs, which affects the retry mechanism. Since it's directly related to the handling of a specific instruction and its side effects during memory operations, this falls under an issue with the instruction processing. + +Therefore, the category is 'instruction'. +</think> + +The bug report discusses issues with how QEMU handles the ldp instruction in specific scenarios leading to exceptions. The problem lies in the handling of registers and retries after exceptions, which pertains directly to the execution of instructions. + +**Answer:** instruction \ No newline at end of file |