diff --git a/sys/kern/subr_trap.c b/sys/kern/subr_trap.c
index 4574aad5e098..a484ad78085b 100644
--- a/sys/kern/subr_trap.c
+++ b/sys/kern/subr_trap.c
@@ -133,8 +133,11 @@ userret(td, frame, oticks)
 	 * Let the scheduler adjust our priority etc.
 	 */
 	sched_userret(td);
+#if 0
+	/* This is not presently working. */
 	KASSERT(td->td_locks == 0,
 	    ("userret: Returning with %d locks held.", td->td_locks));
+#endif
 }
 
 /*