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SubjectRe: WARNING: at net/ipv4/tcp.c:1610 tcp_recvmsg+0xb1b/0xc70()
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On Sat, 2012-05-26 at 12:22 +0100, Jack Stone wrote:

> I'm still getting this with da89fb1 which includes the above
>
> Linux hover1 3.4.0-07797-gda89fb1 #4 SMP Fri May 25 22:23:14 BST 2012 x86_64 x86_64 x86_64 GNU/Linux

Thanks

Could you add following debugging patch ?

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 3ba605f..b56c63c 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1606,8 +1606,9 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (tcp_hdr(skb)->fin)
goto found_fin_ok;
WARN(!(flags & MSG_PEEK),
- "recvmsg bug 2: copied %X seq %X rcvnxt %X fl %X\n",
- *seq, TCP_SKB_CB(skb)->seq, tp->rcv_nxt, flags);
+ "recvmsg bug 2: copied %X seq %X end_seq %X rcvnxt %X fl %X offset %u len %u syn %d\n",
+ *seq, TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
+ tp->rcv_nxt, flags, offset, skb->len, tcp_hdr(skb)->syn);
}

/* Well, if we have backlog, try to process it now yet. */



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