[Bug 282713] Process enters in STOP state and doesn't respond to any signal.

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282713

--- Comment #16 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=df436036e82b895a6233d803bc8bf14d2cfe90d7

commit df436036e82b895a6233d803bc8bf14d2cfe90d7
Author:     Bojan Novković <bnovkov@FreeBSD.org>
AuthorDate: 2025-01-30 15:10:04 +0000
Commit:     Bojan Novković <bnovkov@FreeBSD.org>
CommitDate: 2025-02-17 16:40:34 +0000

    umtx: Don't sleep after casueword32 failure in do_sem2_wake

    When a casueword32 operation fails, 'do_sem2_wake' will call
    'thread_check_susp' to avoid a potential livelock. However, it
    instructs 'thread_check_susp' to sleep while holding a previously busied
    umtxq key. This is explicitly discouraged by the comments in
    'thread_check_susp' which state that a thread shouldn't sleep if it
    owns a kernel resource. Fix this by passing 'false'
    to 'thread_check_susp'.

    Reviewed by:    kib
    PR:             282713
    Differential Revision:  https://reviews.freebsd.org/D48728
    Sponsored by:   Klara Inc.

 sys/kern/kern_umtx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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