diff --git a/sys/vm/vm_pager.c b/sys/vm/vm_pager.c
index 87557aef472b..7d2ea2ce802a 100644
--- a/sys/vm/vm_pager.c
+++ b/sys/vm/vm_pager.c
@@ -84,6 +84,8 @@ __FBSDID("$FreeBSD$");
 #include <vm/vm_pager.h>
 #include <vm/vm_extern.h>
 
+extern vm_page_t bogus_page;
+
 int cluster_pbuf_freecnt = -1;	/* unlimited to begin with */
 
 struct buf *swbuf;
@@ -260,6 +262,8 @@ vm_pager_assert_in(vm_object_t object, vm_page_t *m, int count)
 	 * not dirty and belong to the proper object.
 	 */
 	for (int i = 0 ; i < count; i++) {
+		if (m[i] == bogus_page)
+			continue;
 		vm_page_assert_xbusied(m[i]);
 		KASSERT(!pmap_page_is_mapped(m[i]),
 		    ("%s: page %p is mapped", __func__, m[i]));