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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/1224')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/1224 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/1224 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1224 new file mode 100644 index 00000000..785c65f1 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1224 @@ -0,0 +1,17 @@ +<think> +Okay, I need to figure out whether this QEMU crash is a user-mode or system-mode issue. The problem occurs when running compressed instructions without RVC support enabled. The error message mentions an assertion failure in translate-all.c, specifically tb_gen_code expecting a non-zero size for the translation block. + +From what I understand, when C extensions are disabled and compressed instructions (like RVC) are executed, QEMU's decoder doesn't update the pc_succ_insn correctly. This means the instruction pointer isn't incremented properly, leading to an empty translation block, which triggers the assertion failure. + +Looking at how QEMU handles translations, it translates blocks of code into TCG intermediate code. If the instruction decoding doesn't advance the PC correctly, the translation block (tb) ends up with size zero, causing the crash. + +Now, thinking about user vs. system mode: User-mode issues typically involve guest applications running in a sandbox or without hardware acceleration, often seen with emulators or when using software debugging tools. System-mode issues are related to the hypervisor or kernel-level operations, involving device emulation, MMU handling, and higher privilege levels. + +In this case, the bug is about instruction decoding and translation, which happens during code execution in the guest environment. It's not directly related to device drivers, I/O operations, or system services but rather how QEMU handles CPU instructions. Since it's a low-level translation issue affecting the virtual CPU, it seems more aligned with user-mode emulation because it's about executing guest code without involving higher privilege levels like hypervisor or kernel. + +Additionally, since the problem occurs in translate-all.c which is part of the TCG (Translation Control Graph) component responsible for compiling guest code into host instructions, this is a core aspect of QEMU's CPU emulation. Therefore, it's more likely a user-mode issue because it's about translating and executing guest application instructions rather than managing system devices or higher-level services. + +So, putting it all together, the bug seems to be related to how QEMU handles instruction decoding in user-mode emulation. +</think> + +user \ No newline at end of file |