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fix bug in previous - if child was traced and p_opptr == p_pptr, 

need to reparent the process to initproc, so that child wouldn't
have its p_pptr pointer still pointing on the exited parent

pointed out by Dave Sainty in private mail (the patch in kern/14443
didn't have this bug)
This commit is contained in:
jdolecek 2002-11-30 09:54:43 +00:00
parent c12288aed8
commit e0d29a5578
1 changed files with 4 additions and 3 deletions
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7
sys/kern/kern_exit.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kern_exit.c,v 1.104 2002/11/28 21:41:29 jdolecek Exp $ */ /* $NetBSD: kern_exit.c,v 1.105 2002/11/30 09:54:43 jdolecek Exp $ */
/*- /*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
@ -78,7 +78,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_exit.c,v 1.104 2002/11/28 21:41:29 jdolecek Exp $"); __KERNEL_RCSID(0, "$NetBSD: kern_exit.c,v 1.105 2002/11/30 09:54:43 jdolecek Exp $");
#include "opt_ktrace.h" #include "opt_ktrace.h"
#include "opt_perfctrs.h" #include "opt_perfctrs.h"
@ -273,7 +273,8 @@ exit1(struct proc *p, int rv)
struct proc *t = q->p_opptr; struct proc *t = q->p_opptr;
proc_reparent(q, t ? t : initproc); proc_reparent(q, t ? t : initproc);
q->p_opptr = NULL; q->p_opptr = NULL;
} } else
proc_reparent(q, initproc);
q->p_flag &= ~(P_TRACED|P_WAITED|P_FSTRACE); q->p_flag &= ~(P_TRACED|P_WAITED|P_FSTRACE);
psignal(q, SIGKILL); psignal(q, SIGKILL);
} else { } else {