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When clearing out the scheduler queues during system shutdown, we move

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all processes to the SSTOP state.  Make sure we update each process's
p_waited and the parents' p_nstopchild counters to maintain consistent
values.  Should not make any real difference this late in the shutdown
process, but we should still be consistent just in case.

Fixes PR kern/50318

Pullups will be requested for:

       NetBSD-7, -6, -6-0, -6-1, -5, -5-0, -5-1, and -5-2
This commit is contained in:
pgoyette 2015-10-13 00:25:51 +00:00
parent 4937211e28
commit 01f3fada24
1 changed files with 9 additions and 3 deletions
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12
sys/kern/kern_synch.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_synch.c,v 1.308 2014/02/28 10:16:51 skrll Exp $ */
/* $NetBSD: kern_synch.c,v 1.309 2015/10/13 00:25:51 pgoyette Exp $ */
/*-
* Copyright (c) 1999, 2000, 2004, 2006, 2007, 2008, 2009
@ -69,7 +69,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_synch.c,v 1.308 2014/02/28 10:16:51 skrll Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_synch.c,v 1.309 2015/10/13 00:25:51 pgoyette Exp $");
#include "opt_kstack.h"
#include "opt_perfctrs.h"
@ -985,7 +985,13 @@ suspendsched(void)
continue;
}
p->p_stat = SSTOP;
if (p->p_stat != SSTOP) {
if (p->p_stat != SZOMB && p->p_stat != SDEAD) {
p->p_pptr->p_nstopchild++;
p->p_waited = 0;
}
p->p_stat = SSTOP;
}
LIST_FOREACH(l, &p->p_lwps, l_sibling) {
if (l == curlwp)