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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/1774149')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/1774149 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/1774149 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1774149 new file mode 100644 index 00000000..a57e2d09 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1774149 @@ -0,0 +1,19 @@ +<think> +Okay, so I'm trying to classify this bug report about QEMU as either user-mode or system-mode related. Let me go through the details step by step. + +The problem occurs when using QEMU in user mode, specifically with the x86_64 target. The user is running `qemu-x86_64` with the `-g` option to attach a GDB server on port 12345. They're trying to debug `/bin/ls` and encountering issues when calling functions from GDB. + +In the first issue, they tried calling `malloc(1)` and got an error about not being able to fetch the "fs_base" register with a remote failure reply 'E14'. Then, after applying a patch that changes how registers are handled in `gdbstub.c`, the function call worked once but failed on subsequent calls. The second attempt gave an error about accessing memory at address 0x40007ffb8f. + +They also mentioned modifying `exec.c` to handle page permissions differently, which seems related to allowing writes on a previously read-only page used by GDB for breakpoints on the stack. + +From my understanding, QEMU can run in user mode or system mode. User-mode emulation focuses on running individual applications without a full OS, while system mode emulates an entire computer including peripherals and devices. + +In this case, since they're using `-L /` which tells QEMU to use the host's root filesystem for the guest process, it seems like they're in user mode because they're executing `/bin/ls` directly under QEMU without a full OS setup. The issues are occurring when trying to debug with GDB and involve register handling and memory permissions specific to the application being debugged. + +The error messages and patches point towards problems within the user-mode emulation part of QEMU, specifically how it interacts with the debugger and handles memory for function calls and breakpoints. There's no mention of hardware devices or system-level components which would be more indicative of a system-mode issue. + +Therefore, this bug is likely related to user-mode emulation. +</think> + +user \ No newline at end of file |