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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/1830')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/1830 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/1830 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1830 new file mode 100644 index 00000000..c5901a59 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/1830 @@ -0,0 +1,23 @@ +<think> +Okay, I need to classify this bug report as either 'user' or 'system' mode related. Let's see what the problem is about. + +The user reports that a command hangs in a CentOS 7 arm64 container running on an Ubuntu 22 amd64 host using Docker. The specific command they ran was `LD_DEBUG=all /lib64/ld-2.17.so --list /usr/bin/true &`. When they checked the process status with `ps`, they saw that two processes were in a 'R' state (running), which means they're consuming CPU. + +The first thing I notice is that this involves Docker and QEMU because the container is arm64, and the host is amd64. So Docker must be using QEMU binfmt_misc to emulate the arm64 architecture. The processes in question are `/usr/libexec/qemu-binfmt/aarch64-binfmt-P`, which suggests they're related to the QEMU user-mode emulation. + +The steps to reproduce indicate that this issue occurs on an Ubuntu 22 amd64 host but not on an Ubuntu 20.04 host or a native arm64 machine without QEMU. This points towards something specific about the setup when using QEMU for emulation on the Ubuntu 22 system. + +Additional info mentions that other images built by their team don't have this issue, so it's isolated to this CentOS 7 image. They tried updating QEMU but didn't replace the binfmt interpreter, which might mean they're still using an older version causing the problem. + +The user also tried building `trace-cmd` but couldn't get events for KVM, suggesting that maybe system-mode issues aren't being captured here. Since the issue occurs in a container and involves QEMU's user-mode process (`aarch64-binfmt-P`), it seems more like a user-space emulation problem rather than something at the hypervisor or kernel level. + +In QEMU, there are two main modes: user mode (which emulates individual processes) and system mode (which emulates an entire OS). Since this issue is about a single process hanging in a container, it's likely related to user-mode emulation where QEMU runs each arm64 binary through its interpreter. The fact that the problem occurs only when using QEMU on amd64 suggests a bug in how QEMU handles certain binaries or their interactions with the host's libraries. + +Moreover, since the command is `/lib64/ld-2.17.so --list /usr/bin/true`, which is a dynamic linker command, it might be getting stuck while trying to resolve dependencies or map symbols, possibly due to an issue in how QEMU handles this process in user mode. + +Given all these points, the bug seems related to QEMU's user-mode operation rather than system-level issues like device emulation or kernel interactions. Therefore, it's a 'user' mode problem. +</think> + +The issue is occurring within the context of QEMU's user-mode emulation where the dynamic linker command is hanging. It doesn't involve higher-privilege operations or system devices but is specific to process execution in user space. + +user \ No newline at end of file |