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linux: work around EOWNERDEAD io_uring kernel bug (#4002)

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io_uring sometimes erroneously returns EOWNERDEAD when the intention was
to return 0. It's harmless and fixed in linux 5.14 so just ignore the
error.

Fixes: https://github.com/libuv/libuv/issues/4001
Refs: https://github.com/torvalds/linux/commit/21f965221e
This commit is contained in:
Ben Noordhuis 2023-05-17 16:54:36 +02:00 committed by GitHub
parent 6f94701467
commit d23a20f62c
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1 changed files with 2 additions and 1 deletions
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src/unix/linux.c
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@ -705,7 +705,8 @@ static void uv__iou_submit(struct uv__iou* iou) {
if (flags & UV__IORING_SQ_NEED_WAKEUP)
if (uv__io_uring_enter(iou->ringfd, 0, 0, UV__IORING_ENTER_SQ_WAKEUP))
perror("libuv: io_uring_enter(wakeup)"); /* Can't happen. */
if (errno != EOWNERDEAD) /* Kernel bug. Harmless, ignore. */
perror("libuv: io_uring_enter(wakeup)"); /* Can't happen. */
}