--- src/sys/kern/lwkt_msgport.c	2007/05/31 11:00:25	1.43
+++ src/sys/kern/lwkt_msgport.c	2007/07/04 19:40:35	1.44
@@ -407,7 +407,7 @@ lwkt_thread_replyport_remote(lwkt_msg_t
 void
 lwkt_thread_replyport(lwkt_port_t port, lwkt_msg_t msg)
 {
-    KKASSERT((msg->ms_flags & (MSGF_DONE|MSGF_QUEUED)) == 0);
+    KKASSERT((msg->ms_flags & (MSGF_DONE|MSGF_QUEUED|MSGF_INTRANSIT)) == 0);
 
     if (msg->ms_flags & MSGF_SYNC) {
 	/*