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In execve_runproc(), update the p_waited entry for the process being 

moved to SSTOP state, not for its parent.  (It is correct to update
the parent's p_nstopchild count.)  If the value is not already zero,
it could prevent its parent from waiting for the process.

Fixes PR kern/50298

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 00:24:35 +00:00
parent 19a6f2c62e
commit 4937211e28
1 changed files with 3 additions and 3 deletions
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6
sys/kern/kern_exec.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_exec.c,v 1.418 2015/10/02 16:54:15 christos Exp $ */
/* $NetBSD: kern_exec.c,v 1.419 2015/10/13 00:24:35 pgoyette Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@ -59,7 +59,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_exec.c,v 1.418 2015/10/02 16:54:15 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_exec.c,v 1.419 2015/10/13 00:24:35 pgoyette Exp $");
#include "opt_exec.h"
#include "opt_execfmt.h"
@ -1282,7 +1282,7 @@ execve_runproc(struct lwp *l, struct execve_data * restrict data,
KERNEL_UNLOCK_ALL(l, &l->l_biglocks);
p->p_pptr->p_nstopchild++;
p->p_pptr->p_waited = 0;
p->p_waited = 0;
mutex_enter(p->p_lock);
ksiginfo_queue_init(&kq);
sigclearall(p, &contsigmask, &kq);