D27607.diff
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D27607.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
	@@ -882,7 +882,7 @@
	* It is assumed that a reference to the object is already
	* held by the callers.
	*/
	- obj = m->object;
	+ obj = atomic_load_ptr(&m->object);
	for (;;) {
	if (vm_page_tryacquire(m, allocflags))
	return (true);
	@@ -4386,8 +4386,8 @@
	if (locked && (allocflags & VM_ALLOC_NOCREAT) == 0)
	vm_page_reference(m);

	- if (_vm_page_busy_sleep(object, m, m->pindex, wmesg, allocflags,
	- locked) && locked)
	+ if (_vm_page_busy_sleep(object, m, pindex, wmesg, allocflags, locked) &&
	+ locked)
	VM_OBJECT_WLOCK(object);
	if ((allocflags & VM_ALLOC_WAITFAIL) != 0)
	return (false);
	@@ -4780,7 +4780,7 @@
	for (; i < count; i++) {
	if (m != NULL) {
	if (!vm_page_tryacquire(m, allocflags)) {
	- if (vm_page_grab_sleep(object, m, pindex,
	+ if (vm_page_grab_sleep(object, m, pindex + i,
	"grbmaw", allocflags, true))
	goto retrylookup;
	break;