Date: Sat, 09 Feb 2002 01:26:20 GMT From: Tor.Egge@cvsup.no.freebsd.org To: julian@elischer.org Cc: gene@nttmcl.com, david@catwhisker.org, current@FreeBSD.ORG Subject: Re: Hang on flushing buffers w/today's -CURRENT, SMP system Message-ID: <20020212021220.19DF99F121@okeeffe.bestweb.net>
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> hmmmm so what is the difference between your kernel and mine that works?
>
> just out of curiosity, have you tried a very latest -current?
> do you have your own config? how does GENERIC behave?
> (what kind of disks do you have?)
It looks like a call to setrunqueue() was incorrectly dropped in
the latest version of kern_shutdown.c.
Index: kern_shutdown.c
===================================================================
RCS file: /home/ncvs/src/sys/kern/kern_shutdown.c,v
retrieving revision 1.118
diff -u -r1.118 kern_shutdown.c
--- kern_shutdown.c 7 Feb 2002 20:58:44 -0000 1.118
+++ kern_shutdown.c 9 Feb 2002 01:11:18 -0000
@@ -272,6 +272,7 @@
DROP_GIANT();
for (subiter = 0; subiter < 50 * iter; subiter++) {
mtx_lock_spin(&sched_lock);
+ setrunqueue(curthread);
curthread->td_proc->p_stats->p_ru.ru_nvcsw++;
mi_switch(); /* Allow interrupt threads to run */
mtx_unlock_spin(&sched_lock);
- Tor Egge
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