Index: vm_machdep.c
===================================================================
--- vm_machdep.c	(revision 231614)
+++ vm_machdep.c	(working copy)
@@ -171,7 +171,7 @@
 	 if (sf->ref_count == 0) {
 		 TAILQ_INSERT_TAIL(&sf_buf_freelist, sf, free_entry);
 		 nsfbufsused--;
-		 pmap_kremove(sf->kva);
+		 pmap_qremove(sf->kva, 1);
 		 sf->m = NULL;
 		 LIST_REMOVE(sf, list_entry);
 		 if (sf_buf_alloc_want > 0)
@@ -259,7 +259,7 @@
 	sf->m = m;
 	nsfbufsused++;
 	nsfbufspeak = imax(nsfbufspeak, nsfbufsused);
-	pmap_kenter(sf->kva, VM_PAGE_TO_PHYS(sf->m));
+	pmap_qenter(sf->kva, &m, 1);
 done:
 	mtx_unlock(&sf_buf_lock);
 	return (sf);