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Diffstat (limited to 'results/classifier/deepseek-r1:14b/reasoning/mistranslation/1878')
| -rw-r--r-- | results/classifier/deepseek-r1:14b/reasoning/mistranslation/1878 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:14b/reasoning/mistranslation/1878 b/results/classifier/deepseek-r1:14b/reasoning/mistranslation/1878 new file mode 100644 index 000000000..4bdc6a898 --- /dev/null +++ b/results/classifier/deepseek-r1:14b/reasoning/mistranslation/1878 @@ -0,0 +1,19 @@ +<think> +Okay, so I'm trying to classify this bug report for QEMU. Let me read through the details carefully. + +The user mentioned that QEMU doesn't implement ARMv4/v5 legacy SCTLR.U==0 load-and-rotate unaligned access handling correctly. They provided a specific example where an LDR instruction behaves differently between a real Raspberry Pi and QEMU. + +In their test, after executing `ldr r7, [r0, r1]`, the real device returns 0x22158042 while QEMU gives 0x87210342. The addresses involved are 0x183a4 and 0x817, pointing to a specific memory location with certain data. + +The issue seems to be related to how unaligned memory accesses are handled when the SCTLR.U bit is set to 0 in ARMv4/v5 architectures. From what I recall, when U=0, unaligned loads/stores should not cause an exception and instead proceed by rotating the address to form a virtual address that's aligned. + +So, this bug report is about how QEMU handles such load instructions with unaligned addresses under specific conditions of the SCTLR register. The problem arises in user-mode code since it's part of the emulation of ARMv4/v5 behavior. + +Looking at the categories provided: mistranslation refers to incorrect mapping from source architecture to IR/target, which is user-mode related. This seems to fit because QEMU isn't correctly translating or emulating the intended behavior of the instruction as per the hardware. + +Other possibilities like device, network, or hypervisor don't seem to apply here. It's specifically about assembly-level handling and processor instructions. +</think> + +The bug report describes an issue where QEMU incorrectly handles unaligned memory accesses for ARMv4/v5 when the SCTLR.U bit is 0. This affects how `ldr` instructions are emulated, leading to different results between QEMU and real hardware. Since this relates to incorrect translation of ARM assembly instructions in user-mode emulation, the appropriate category is: + +**mistranslation** \ No newline at end of file |