D46943.diff
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D46943.diff
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	diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
	--- a/sys/vm/vm_page.c
	+++ b/sys/vm/vm_page.c
	@@ -2097,7 +2097,7 @@
	* Attempt to reserve the pages. Fail if we're below the limit.
	*/
	limit += npages;
	- old = vmd->vmd_free_count;
	+ old = atomic_load_int(&vmd->vmd_free_count);
	do {
	if (old < limit)
	return (0);
	@@ -4239,7 +4239,7 @@
	{
	u_int old;

	- old = m->ref_count;
	+ old = atomic_load_int(&m->ref_count);
	do {
	KASSERT(old > 0,
	("vm_page_wire_mapped: wiring unreferenced page %p", m));
	@@ -4273,7 +4273,7 @@
	* Use a release store when updating the reference count to
	* synchronize with vm_page_free_prep().
	*/
	- old = m->ref_count;
	+ old = atomic_load_int(&m->ref_count);
	do {
	KASSERT(VPRC_WIRE_COUNT(old) > 0,
	("vm_page_unwire: wire count underflow for page %p", m));
	@@ -4568,7 +4568,7 @@
	("vm_page_try_blocked_op: page %p is not busy", m));
	VM_OBJECT_ASSERT_LOCKED(m->object);

	- old = m->ref_count;
	+ old = atomic_load_int(&m->ref_count);
	do {
	KASSERT(old != 0,
	("vm_page_try_blocked_op: page %p has no references", m));