svn commit: r207213 - head/sys/amd64/amd64

[Kip Macy]

Author: kmacy
Date: Sun Apr 25 23:51:05 2010
New Revision: 207213
URL: http://svn.freebsd.org/changeset/base/207213

Log:
  missed pv access before pmap lock

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

Modified: head/sys/amd64/amd64/pmap.c
==============================================================================
--- head/sys/amd64/amd64/pmap.c	Sun Apr 25 23:49:32 2010	(r207212)
+++ head/sys/amd64/amd64/pmap.c	Sun Apr 25 23:51:05 2010	(r207213)
@@ -2793,9 +2793,9 @@ pmap_remove_all(vm_page_t m)
 	mtx_assert(&vm_page_queue_mtx, MA_OWNED);
 	pvh = pa_to_pvh(VM_PAGE_TO_PHYS(m));
 	while ((pv = TAILQ_FIRST(&pvh->pv_list)) != NULL) {
-		va = pv->pv_va;
 		pmap = PV_PMAP(pv);
 		PMAP_LOCK(pmap);
+		va = pv->pv_va;
 		pde = pmap_pde(pmap, va);
 		(void)pmap_demote_pde(pmap, pde, va);
 		PMAP_UNLOCK(pmap);