--- rpc/replay.c.sav	2010-08-08 18:05:50.000000000 -0400
+++ rpc/replay.c	2010-08-08 18:16:43.000000000 -0400
@@ -90,8 +90,10 @@
 replay_setsize(struct replay_cache *rc, size_t newmaxsize)
 {
 
+	mtx_lock(&rc->rc_lock);
 	rc->rc_maxsize = newmaxsize;
 	replay_prune(rc);
+	mtx_unlock(&rc->rc_lock);
 }
 
 void
@@ -144,8 +146,8 @@
 	bool_t freed_one;
 
 	if (rc->rc_count >= REPLAY_MAX || rc->rc_size > rc->rc_maxsize) {
-		freed_one = FALSE;
 		do {
+			freed_one = FALSE;
 			/*
 			 * Try to free an entry. Don't free in-progress entries
 			 */