Index: if_em.c
===================================================================
RCS file: /usr/store/mlaier/fcvs/src/sys/dev/em/if_em.c,v
retrieving revision 1.47
diff -u -r1.47 if_em.c
--- if_em.c	9 Oct 2004 07:27:03 -0000	1.47
+++ if_em.c	16 Oct 2004 15:01:08 -0000
@@ -1893,7 +1893,7 @@
 	ifp->if_start = em_start;
 	ifp->if_watchdog = em_watchdog;
 	IFQ_SET_MAXLEN(&ifp->if_snd, adapter->num_tx_desc - 1);
-	ifp->if_snd.ifq_drv_maxlen = adapter->num_tx_desc - 1;
+	ifp->if_snd.ifq_drv_maxlen = 0;
 	IFQ_SET_READY(&ifp->if_snd);
 
 #if __FreeBSD_version < 500000