Index: head/sys/kern/subr_hash.c
===================================================================
--- head/sys/kern/subr_hash.c
+++ head/sys/kern/subr_hash.c
@@ -93,7 +93,8 @@
 
 	hashtbl = vhashtbl;
 	for (hp = hashtbl; hp <= &hashtbl[hashmask]; hp++)
-		KASSERT(LIST_EMPTY(hp), ("%s: hash not empty", __func__));
+		KASSERT(LIST_EMPTY(hp), ("%s: hashtbl %p not empty "
+		    "(malloc type %s)", __func__, hashtbl, type->ks_shortdesc));
 	free(hashtbl, type);
 }