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@
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parent
eddde6d369
commit
57125a688b
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@ -1,4 +1,4 @@
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/* $NetBSD: pmap.c,v 1.184 2014/10/14 06:59:58 bouyer Exp $ */
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/* $NetBSD: pmap.c,v 1.185 2014/11/22 06:45:08 cherry Exp $ */
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/*-
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/*-
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* Copyright (c) 2008, 2010 The NetBSD Foundation, Inc.
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* Copyright (c) 2008, 2010 The NetBSD Foundation, Inc.
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@ -171,7 +171,7 @@
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*/
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*/
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#include <sys/cdefs.h>
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.184 2014/10/14 06:59:58 bouyer Exp $");
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__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.185 2014/11/22 06:45:08 cherry Exp $");
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#include "opt_user_ldt.h"
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#include "opt_user_ldt.h"
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#include "opt_lockdebug.h"
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#include "opt_lockdebug.h"
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@ -4187,8 +4187,7 @@ pmap_alloc_level(pd_entry_t * const *pdes, vaddr_t kva, int lvl,
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pmap_pte_set(&pdep[i], pte);
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pmap_pte_set(&pdep[i], pte);
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#if defined(PAE) || defined(__x86_64__)
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#if defined(PAE) || defined(__x86_64__)
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if (level == PTP_LEVELS && i >= PDIR_SLOT_KERN) {
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if (level == PTP_LEVELS && i >= PDIR_SLOT_KERN) {
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if (__predict_true(
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if (__predict_true(mp_online == true)) {
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cpu_info_primary.ci_flags & CPUF_PRESENT)) {
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/* update per-cpu PMDs on all cpus */
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/* update per-cpu PMDs on all cpus */
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xen_kpm_sync(pmap_kernel(), i);
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xen_kpm_sync(pmap_kernel(), i);
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} else {
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} else {
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