The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=75a30ea09f4e75480743fae5c2369d50a6d8526c
commit 75a30ea09f4e75480743fae5c2369d50a6d8526c Author: Konstantin Belousov <[email protected]> AuthorDate: 2026-02-12 20:24:13 +0000 Commit: Konstantin Belousov <[email protected]> CommitDate: 2026-02-13 15:46:41 +0000 filt_timerexpire_l(): re-insert restarted timer into head instead of tail of the resumed timers list, so that kqtimer_proc_continue() does not iterated into the same timer again. PR: 293141 Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 3 days Differential revision: https://reviews.freebsd.org/D55264 --- sys/kern/kern_event.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c index a48408fd482a..85b7b6c953af 100644 --- a/sys/kern/kern_event.c +++ b/sys/kern/kern_event.c @@ -873,8 +873,13 @@ filt_timerexpire_l(struct knote *kn, bool proc_locked) PROC_LOCK(p); if (P_SHOULDSTOP(p) || P_KILLED(p)) { if ((kc->flags & KQ_TIMER_CB_ENQUEUED) == 0) { + /* + * Insert into head so that + * kqtimer_proc_continue() does not + * iterate into us again. + */ kc->flags |= KQ_TIMER_CB_ENQUEUED; - TAILQ_INSERT_TAIL(&p->p_kqtim_stop, kc, link); + TAILQ_INSERT_HEAD(&p->p_kqtim_stop, kc, link); } if (!proc_locked) PROC_UNLOCK(p);
