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exit_lwps: fix a race which causes a panic "setrunnable: lwp %p state was %d".

This commit is contained in:
yamt 2005-08-10 09:42:03 +00:00
parent 3a96c9add9
commit 98d4a17db9
1 changed files with 4 additions and 4 deletions
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8
sys/kern/kern_exit.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_exit.c,v 1.148 2005/05/29 22:24:15 christos Exp $ */
/* $NetBSD: kern_exit.c,v 1.149 2005/08/10 09:42:03 yamt Exp $ */
/*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
@ -74,7 +74,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_exit.c,v 1.148 2005/05/29 22:24:15 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_exit.c,v 1.149 2005/08/10 09:42:03 yamt Exp $");
#include "opt_ktrace.h"
#include "opt_perfctrs.h"
@ -595,14 +595,14 @@ exit_lwps(struct lwp *l)
LIST_FOREACH(l2, &p->p_lwps, l_sibling) {
l2->l_flag &= ~(L_DETACHED|L_SA);
SCHED_LOCK(s);
if ((l2->l_stat == LSSLEEP && (l2->l_flag & L_SINTR)) ||
l2->l_stat == LSSUSPENDED || l2->l_stat == LSSTOP) {
SCHED_LOCK(s);
setrunnable(l2);
SCHED_UNLOCK(s);
DPRINTF(("exit_lwps: Made %d.%d runnable\n",
p->p_pid, l2->l_lid));
}
SCHED_UNLOCK(s);
}