[Bug 298878] linux(4): epoll_pwait(2)/epoll_pwait2(2) with a sigmask leave a stale signal mask, deadlocking Bun apps (Claude Code, opencode)

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From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 04 Oct 2026 00:34:58 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=298878

--- Comment #9 from commit-hook@FreeBSD.org ---
A commit in branch stable/15 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=0143078248bb4caf39f23c9075b2afbede52e70d

commit 0143078248bb4caf39f23c9075b2afbede52e70d
Author:     Grzegorz Junka <list1@gjunka.com>
AuthorDate: 2026-09-27 19:22:20 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2026-10-04 00:33:40 +0000

    linux(4): Fix signal mask restoration in epoll_pwait(2)/epoll_pwait2(2)

    PR:             298878

    (cherry picked from commit 16a284b1cdfd45ba99c2723e7f88497e76b235ad)

 sys/compat/linux/linux_event.c | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

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