D41982.1787045832.diff
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D41982.1787045832.diff
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	diff --git a/sys/kern/sys_timerfd.c b/sys/kern/sys_timerfd.c
	--- a/sys/kern/sys_timerfd.c
	+++ b/sys/kern/sys_timerfd.c
	@@ -59,6 +59,8 @@
	#endif

	static MALLOC_DEFINE(M_TIMERFD, "timerfd", "timerfd structures");
	+static struct mtx tfdlist_lock;
	+MTX_SYSINIT(tfdlist_lock, &tfdlist_lock, "timerfd list locker", MTX_DEF);
	static LIST_HEAD(, timerfd) timerfd_head;
	static struct unrhdr64 tfdino_unr;

	@@ -125,6 +127,7 @@
	struct timespec boottime, diff;

	timerfd_getboottime(&boottime);
	+ mtx_lock(&tfdlist_lock);
	LIST_FOREACH(tfd, &timerfd_head, entry) {
	mtx_lock(&tfd->tfd_lock);
	if (tfd->tfd_clockid != CLOCK_REALTIME \|\|
	@@ -160,6 +163,7 @@
	tfd->tfd_boottim = boottime;
	mtx_unlock(&tfd->tfd_lock);
	}
	+ mtx_unlock(&tfdlist_lock);
	}

	static int
	@@ -318,7 +322,9 @@
	seldrain(&tfd->tfd_sel);
	knlist_destroy(&tfd->tfd_sel.si_note);
	mtx_destroy(&tfd->tfd_lock);
	+ mtx_lock(&tfdlist_lock);
	LIST_REMOVE(tfd, entry);
	+ mtx_unlock(&tfdlist_lock);
	free(tfd, M_TIMERFD);
	fp->f_ops = &badfileops;

	@@ -431,7 +437,9 @@
	knlist_init_mtx(&tfd->tfd_sel.si_note, &tfd->tfd_lock);
	timerfd_getboottime(&tfd->tfd_boottim);
	getnanotime(&tfd->tfd_birthtim);
	+ mtx_lock(&tfdlist_lock);
	LIST_INSERT_HEAD(&timerfd_head, tfd, entry);
	+ mtx_unlock(&tfdlist_lock);

	error = falloc(td, &fp, &fd, fflags);
	if (error != 0)