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main: disable kerenel preemption during early on boot. namely, between 

configure() and configure2().  some kernel threads are not expected
to be run before "cold = 0".  fixes cache_thread() busy-loop.
This commit is contained in:
yamt 2009-03-05 06:37:03 +00:00
parent 4f0b35e963
commit c75123c99b
1 changed files with 8 additions and 2 deletions
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10
sys/kern/init_main.c
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@ -1,4 +1,4 @@
/* $NetBSD: init_main.c,v 1.382 2009/02/13 22:41:04 apb Exp $ */
/* $NetBSD: init_main.c,v 1.383 2009/03/05 06:37:03 yamt Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@ -97,7 +97,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.382 2009/02/13 22:41:04 apb Exp $");
__KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.383 2009/03/05 06:37:03 yamt Exp $");
#include "opt_ddb.h"
#include "opt_ipsec.h"
@ -358,6 +358,9 @@ main(void)
/* Create process 0 (the swapper). */
proc0_init();
/* Disable preemption during boot. */
kpreempt_disable();
/* Initialize the UID hash table. */
uid_init();
@ -472,6 +475,9 @@ main(void)
configure2();
/* Now timer is working. Enable preemption. */
kpreempt_enable();
ubc_init(); /* must be after autoconfig */
#ifdef SYSVSHM