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Also wait interruptibly when exiting. Avoids deadlocked on exit processes

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create by golang.
This commit is contained in:
christos 2017-12-02 22:51:22 +00:00
parent f7237b1ef2
commit 3281275922
1 changed files with 5 additions and 4 deletions
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9
sys/kern/kern_lwp.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_lwp.c,v 1.190 2017/06/22 09:05:09 skrll Exp $ */
/* $NetBSD: kern_lwp.c,v 1.191 2017/12/02 22:51:22 christos Exp $ */
/*-
* Copyright (c) 2001, 2006, 2007, 2008, 2009 The NetBSD Foundation, Inc.
@ -211,7 +211,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_lwp.c,v 1.190 2017/06/22 09:05:09 skrll Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_lwp.c,v 1.191 2017/12/02 22:51:22 christos Exp $");
#include "opt_ddb.h"
#include "opt_lockdebug.h"
@ -645,8 +645,9 @@ lwp_wait(struct lwp *l, lwpid_t lid, lwpid_t *departed, bool exiting)
*/
if (exiting) {
KASSERT(p->p_nlwps > 1);
cv_wait(&p->p_lwpcv, p->p_lock);
error = EAGAIN;
error = cv_wait_sig(&p->p_lwpcv, p->p_lock);
if (error == 0)
error = EAGAIN;
break;
}