diff options
| -rw-r--r-- | sys/kern/kern_synch.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/kern/kern_synch.c b/sys/kern/kern_synch.c index 9925025e304..83b4cc9f3b5 100644 --- a/sys/kern/kern_synch.c +++ b/sys/kern/kern_synch.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_synch.c,v 1.140 2017/04/20 13:57:30 visa Exp $ */ +/* $OpenBSD: kern_synch.c,v 1.141 2017/05/18 07:08:45 mpi Exp $ */ /* $NetBSD: kern_synch.c,v 1.37 1996/04/22 01:38:37 christos Exp $ */ /* @@ -450,6 +450,15 @@ wakeup_n(const volatile void *ident, int n) for (p = TAILQ_FIRST(qp); p != NULL && n != 0; p = pnext) { pnext = TAILQ_NEXT(p, p_runq); #ifdef DIAGNOSTIC + /* + * If the rwlock passed to rwsleep() is contended, the + * CPU will end up calling wakeup() between sleep_setup() + * and sleep_finish(). + */ + if (p == curproc) { + KASSERT(p->p_stat == SONPROC); + continue; + } if (p->p_stat != SSLEEP && p->p_stat != SSTOP) panic("wakeup: p_stat is %d", (int)p->p_stat); #endif |