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Test patch from https://bugzilla.redhat.com/show_bug.cgi?id=857324
From: Neil Horman <nhorman@redhat.com>
--- linux-3.5.3-1.fc17.noarch/net/ipv4/tcp.c~ 2012-09-28 12:29:00.141480580 -0400
+++ linux-3.5.3-1.fc17.noarch/net/ipv4/tcp.c 2012-09-28 12:29:33.975448093 -0400
@@ -1298,7 +1298,8 @@ void tcp_cleanup_rbuf(struct sock *sk, i
struct sk_buff *skb = skb_peek(&sk->sk_receive_queue);
- WARN(skb && !before(tp->copied_seq, TCP_SKB_CB(skb)->end_seq),
+ WARN(skb && !before(tp->copied_seq, TCP_SKB_CB(skb)->end_seq) &&
+ tp->copied_seq != TCP_SKB_CB(skb)->end_seq,
"cleanup rbuf bug: copied %X seq %X rcvnxt %X\n",
tp->copied_seq, TCP_SKB_CB(skb)->end_seq, tp->rcv_nxt);
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