From: Eric Dumazet <eric.dumazet@gmail.com>
To: Jack Stone <jwjstone@fastmail.fm>
Cc: davem@davemloft.net, netdev@vger.kernel.org,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: WARNING: at net/ipv4/tcp.c:1610 tcp_recvmsg+0xb1b/0xc70()
Date: Sun, 27 May 2012 15:59:44 +0200 [thread overview]
Message-ID: <1338127184.3670.50.camel@edumazet-glaptop> (raw)
In-Reply-To: <4FC0BCE1.6070601@fastmail.fm>
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. */
next prev parent reply other threads:[~2012-05-27 13:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-25 20:25 WARNING: at net/ipv4/tcp.c:1610 tcp_recvmsg+0xb1b/0xc70() Jack Stone
2012-05-25 20:45 ` Eric Dumazet
2012-05-25 20:55 ` Eric Dumazet
2012-05-25 21:31 ` Jack Stone
2012-05-26 11:22 ` Jack Stone
2012-05-27 13:59 ` Eric Dumazet [this message]
2012-05-27 15:34 ` Jack Stone
2012-05-27 17:35 ` Eric Dumazet
2012-05-27 19:13 ` Jack Stone
2012-05-27 19:36 ` Eric Dumazet
2012-05-27 19:46 ` Eric Dumazet
2012-05-28 0:25 ` Eric Dumazet
2012-05-28 8:34 ` Jack Stone
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