--- src/sys/net/tap/if_tap.c	2007/12/31 04:58:53	1.38
+++ src/sys/net/tap/if_tap.c	2008/05/18 02:40:41	1.39
@@ -33,7 +33,7 @@
 /*
  * $FreeBSD: src/sys/net/if_tap.c,v 1.3.2.3 2002/04/14 21:41:48 luigi Exp $
  * $DragonFly$
- * $Id: if_tap.c,v 1.38 2007/12/31 04:58:53 sephe Exp $
+ * $Id: if_tap.c,v 1.39 2008/05/18 02:40:41 sephe Exp $
  */
 
 #include "opt_inet.h"
@@ -482,7 +482,10 @@ tapifstart(struct ifnet *ifp)
 			tp->tap_flags &= ~TAP_RWAIT;
 			wakeup((caddr_t)tp);
 		}
+
+		get_mplock();
 		KNOTE(&tp->tap_rsel.si_note, 0);
+		rel_mplock();
 
 		if ((tp->tap_flags & TAP_ASYNC) && (tp->tap_sigio != NULL)) {
 			get_mplock();