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Avoid crashing when we do not explictly pass down a CPU when creating 

a kthread(9) in the LSIDL (KTHREAD_IDLE) state.
This commit is contained in:
jym 2011-11-01 15:39:37 +00:00
parent 531a87f792
commit 7beb0e066c
1 changed files with 8 additions and 4 deletions
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12
sys/kern/kern_kthread.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_kthread.c,v 1.37 2011/10/29 20:11:08 jym Exp $ */
/* $NetBSD: kern_kthread.c,v 1.38 2011/11/01 15:39:37 jym Exp $ */
/*-
* Copyright (c) 1998, 1999, 2007, 2009 The NetBSD Foundation, Inc.
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_kthread.c,v 1.37 2011/10/29 20:11:08 jym Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_kthread.c,v 1.38 2011/11/01 15:39:37 jym Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -140,8 +140,12 @@ kthread_create(pri_t pri, int flag, struct cpu_info *ci,
l->l_stat = LSRUN;
sched_enqueue(l, false);
lwp_unlock(l);
} else
lwp_unlock_to(l, ci->ci_schedstate.spc_lwplock);
} else {
if (ci != NULL)
lwp_unlock_to(l, ci->ci_schedstate.spc_lwplock);
else
lwp_unlock(l);
}
mutex_exit(proc0.p_lock);
/* All done! */