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Diffstat (limited to 'results/classifier/deepseek-2-tmp/reasoning/network/1054180')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/reasoning/network/1054180 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2-tmp/reasoning/network/1054180 b/results/classifier/deepseek-2-tmp/reasoning/network/1054180 new file mode 100644 index 000000000..ad0d8a679 --- /dev/null +++ b/results/classifier/deepseek-2-tmp/reasoning/network/1054180 @@ -0,0 +1,26 @@ +<think> +Okay, I need to classify this bug report into one of the given categories for QEMU. Let me read through the details carefully. + +The issue described is about DNS activity in slirp mode causing a depletion of file descriptors (fds), which leads to QEMU crashing. The user mentions that when they perform many DNS queries inside the VM, especially during a CentOS network installation with a fast mirror, QEMU can't handle it well. + +Looking at the problem points: +1. When ulimit is set to 1024, QEMU hangs in an infinite loop trying to open the 1025th fd. +2. Even if ulimit is increased beyond 1024, QEMU crashes due to a buffer overflow in select() because the default max fd set size is 1024. +3. Workarounds involve setting a higher ulimit, recompiling with a larger fd set, and disabling GCC's fortify source. + +The user also provided a replication method: running a loop that sends data over UDP to an IP, which quickly causes the crash. + +Now, considering the categories: +- Mistranslation, assembly lowering, or other don't seem relevant here. +- The problem is related to networking because it's about DNS and slirp (user-mode networking). +- It's not a device issue per se, but more about how QEMU handles network connections. +- Network-related issues would involve the way file descriptors are managed in the context of handling multiple sockets or connections. + +The crash occurs due to excessive fd usage in network operations. Since slirp is part of QEMU's user-mode networking and the issue arises from DNS queries, which use UDP sockets, this points directly to a problem with how QEMU manages file descriptors for network activities. Therefore, it falls under the 'network' category. +</think> + +The bug report describes an issue where QEMU's slirp mode, used for user-space networking, depletes file descriptors (fds) when handling multiple DNS queries, leading to crashes. The problem occurs because QEMU cannot handle a high number of fds efficiently—hanging or crashing due to fd limits and select() buffer overflows. + +The issue is directly related to network operations, specifically DNS activity within the VM, which uses UDP sockets. This impacts how QEMU manages socket file descriptors for networking. Therefore, it falls under the 'network' category. + +**Answer:** network \ No newline at end of file |