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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/2448')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/2448 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/2448 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/2448 new file mode 100644 index 00000000..76334dc9 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/2448 @@ -0,0 +1,15 @@ +<think> +Alright, so I'm trying to classify this bug report as either 'user-mode' or 'system-mode'. Let's see what the issue is about. + +The problem occurs when using `*-linux-user` as binfmt_misc. That immediately tells me it's related to user-mode emulation because that's what `-linux-user` binaries are used for—emulating a different architecture in user space without full system virtualization. + +Looking at the steps to reproduce, they involve setting up QEMU with the `--credential` flag, which enables open-binary mode. The issue arises when file descriptor 0 is closed before running the executable. It seems that QEMU isn't correctly handling AT_EXECFD when it's set to 0, leading to unexpected behavior where the executable ends up as stdin. + +The user mentions that in native execution, closing stdin results in an error about a bad file descriptor. But with QEMU, the executable itself is read from stdin instead. This suggests a problem in how QEMU handles auxv values and file descriptors during process startup in user-mode. + +They also refer to specific lines in `linux-user/main.c`, indicating that this issue is within the user-mode code where QEMU loads the binary and sets up file descriptors. The discussion about modifying `qemu_getauxval` to correctly distinguish between AT_EXECFD not found and being zero further points towards an issue in how auxiliary values are handled during user-mode execution. + +Since all these components—binfmt_misc setup, handling of auxv, and file descriptor management—are part of the user-mode emulation within QEMU, this bug is definitely related to user-mode. There's no mention of system-level issues like device emulation or higher privileges, which would point towards system-mode. +</think> + +user \ No newline at end of file |