Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Wait until all cpus are online, before using the codepath 

which syncs all per-cpu cached copies of L4 tables.
(On both x86_64 and i386/pae)

This avoids an early bootup mutex use before mutex init situation.

Reported by manu@
This commit is contained in:
cherry 2014-11-22 06:45:08 +00:00
parent eddde6d369
commit 57125a688b
1 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
sys/arch/x86/x86/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.184 2014/10/14 06:59:58 bouyer Exp $ */
/* $NetBSD: pmap.c,v 1.185 2014/11/22 06:45:08 cherry Exp $ */
/*-
* Copyright (c) 2008, 2010 The NetBSD Foundation, Inc.
@ -171,7 +171,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.184 2014/10/14 06:59:58 bouyer Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.185 2014/11/22 06:45:08 cherry Exp $");
#include "opt_user_ldt.h"
#include "opt_lockdebug.h"
@ -4187,8 +4187,7 @@ pmap_alloc_level(pd_entry_t * const *pdes, vaddr_t kva, int lvl,
pmap_pte_set(&pdep[i], pte);
#if defined(PAE) || defined(__x86_64__)
if (level == PTP_LEVELS && i >= PDIR_SLOT_KERN) {
if (__predict_true(
cpu_info_primary.ci_flags & CPUF_PRESENT)) {
if (__predict_true(mp_online == true)) {
/* update per-cpu PMDs on all cpus */
xen_kpm_sync(pmap_kernel(), i);
} else {