--- src/sys/net/if.c	2008/03/08 07:50:49	1.62
+++ src/sys/net/if.c	2008/03/29 03:38:53	1.63
@@ -2008,7 +2008,7 @@ ifaddrinit(void *dummy __unused)
 	for (i = 0; i < ncpus; ++i) {
 		struct thread *thr = &ifaddr_threads[i];
 
-		lwkt_create(netmsg_service_loop, NULL, NULL, thr, 0, i,
+		lwkt_create(netmsg_service_loop_mpsafe, NULL, NULL, thr, 0, i,
 			    "ifaddr %d", i);
 		netmsg_service_port_init(&thr->td_msgport);
 	}