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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Fri, 30 Aug 2013 20:10:01 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r255079 - head/sys/amd64/amd64
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Author: kib
Date: Fri Aug 30 20:10:01 2013
New Revision: 255079
URL: http://svnweb.freebsd.org/changeset/base/255079

Log:
  The pm_save should be cleared on the pmap initialization, and not on
  the activation.
  
  Noted by:	alc

Modified:
  head/sys/amd64/amd64/pmap.c

Modified: head/sys/amd64/amd64/pmap.c
==============================================================================
--- head/sys/amd64/amd64/pmap.c	Fri Aug 30 19:42:25 2013	(r255078)
+++ head/sys/amd64/amd64/pmap.c	Fri Aug 30 20:10:01 2013	(r255079)
@@ -1863,6 +1863,7 @@ pmap_pinit0(pmap_t pmap)
 	pmap->pm_pml4 = (pml4_entry_t *)PHYS_TO_DMAP(KPML4phys);
 	pmap->pm_root.rt_root = 0;
 	CPU_ZERO(&pmap->pm_active);
+	CPU_ZERO(&pmap->pm_save);
 	PCPU_SET(curpmap, pmap);
 	TAILQ_INIT(&pmap->pm_pvchunk);
 	bzero(&pmap->pm_stats, sizeof pmap->pm_stats);
@@ -5939,7 +5940,6 @@ pmap_activate(struct thread *td)
 	critical_enter();
 	pmap = vmspace_pmap(td->td_proc->p_vmspace);
 	oldpmap = PCPU_GET(curpmap);
-	CPU_ZERO(&pmap->pm_save);
 	cpuid = PCPU_GET(cpuid);
 #ifdef SMP
 	CPU_CLR_ATOMIC(cpuid, &oldpmap->pm_active);