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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/2385')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/2385 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/2385 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/2385 new file mode 100644 index 000000000..bf296f12f --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/2385 @@ -0,0 +1,15 @@ +<think> +Okay, so I need to figure out whether this bug is user-mode or system-mode related. The problem happens when single-stepping through a SPARC program in GDB using QEMU. The issue occurs specifically at the `std` instruction, which causes a SIGILL (illegal instruction) trap. However, running the program normally works fine. + +First, I'll recall what user-mode and system-mode mean. User-mode refers to processes running with lower privileges, typically where application code executes. System-mode involves higher privilege levels, like kernel operations or device drivers. + +In this case, the user is using GDB to debug an application. The `std` instruction is a store double-word operation in SPARC assembly. When single-stepping over it, QEMU throws an illegal instruction error. But when the program runs normally without stepping, everything works as expected. This suggests that the issue arises during debugging, specifically when interacting with GDB's step commands. + +The user mentions they can't test on real hardware, so it might be a QEMU emulation problem. The previous bug fix was related to handling `lda` instructions in kernel functions, which is system-mode. However, this current issue involves an application-level instruction (`std`) that should execute in user mode. + +If the problem were system-mode, it would likely involve kernel operations or device accesses. But here, the program is a simple shell-spawning assembly with standard instructions. The SIGILL happens during single-stepping, which GDB handles by requesting the debugger to step through each instruction. If QEMU misbehaves when handling these requests, it could cause such traps. + +Therefore, since the issue occurs in user-mode code execution under QEMU's emulation and involves a debugger interaction, it seems more like a user-mode problem rather than system-mode. +</think> + +user \ No newline at end of file |