Re: WARNING: at net/ipv4/tcp.c:1610 tcp_recvmsg+0xb1b/0xc70()
flat view
From: Eric Dumazet <hidden>
Date: 2012-05-27 13:59:51
Also in:
lkml
Subsystem:
networking [general], networking [tcp], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Neal Cardwell, Linus Torvalds
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. */