===== net/ipv4/tcp_timer.c 1.24 vs edited =====
--- 1.24/net/ipv4/tcp_timer.c	2004-09-08 02:18:04 +10:00
+++ edited/net/ipv4/tcp_timer.c	2004-10-09 16:51:20 +10:00
@@ -319,6 +319,9 @@
 	if (!tcp_get_pcount(&tp->packets_out))
 		goto out;
 
+	if (skb_queue_empty(&sk->sk_write_queue))
+		printk(KERN_DEBUG "TCP: empty write queue packets_out = %d",
+		       tcp_get_pcount(&tp->packets_out));
 	BUG_TRAP(!skb_queue_empty(&sk->sk_write_queue));
 
 	if (!tp->snd_wnd && !sock_flag(sk, SOCK_DEAD) &&