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authorDavid S. Miller <davem@davemloft.net>2009-11-17 09:05:02 +0100
committerDavid S. Miller <davem@davemloft.net>2009-11-17 09:05:02 +0100
commita2bfbc072e279ff81e6b336acff612b9bc2e5281 (patch)
tree89cfe21911e1539e1b7f89d8a10d42abecba2a18 /net/ipv4/tcp.c
parentKS8695: fix ks8695_rx() unreasonable action. (diff)
parentppp: fix BUG on non-linear SKB (multilink receive) (diff)
downloadlinux-a2bfbc072e279ff81e6b336acff612b9bc2e5281.tar.xz
linux-a2bfbc072e279ff81e6b336acff612b9bc2e5281.zip
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/can/Kconfig
Diffstat (limited to 'net/ipv4/tcp.c')
-rw-r--r--net/ipv4/tcp.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index e0cfa633680a..524f9760193b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1183,7 +1183,9 @@ void tcp_cleanup_rbuf(struct sock *sk, int copied)
#if TCP_DEBUG
struct sk_buff *skb = skb_peek(&sk->sk_receive_queue);
- WARN_ON(skb && !before(tp->copied_seq, TCP_SKB_CB(skb)->end_seq));
+ WARN(skb && !before(tp->copied_seq, TCP_SKB_CB(skb)->end_seq),
+ KERN_INFO "cleanup rbuf bug: copied %X seq %X rcvnxt %X\n",
+ tp->copied_seq, TCP_SKB_CB(skb)->end_seq, tp->rcv_nxt);
#endif
if (inet_csk_ack_scheduled(sk)) {
@@ -1430,11 +1432,13 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
/* Now that we have two receive queues this
* shouldn't happen.
*/
- if (before(*seq, TCP_SKB_CB(skb)->seq)) {
- printk(KERN_INFO "recvmsg bug: copied %X "
- "seq %X\n", *seq, TCP_SKB_CB(skb)->seq);
+ if (WARN(before(*seq, TCP_SKB_CB(skb)->seq),
+ KERN_INFO "recvmsg bug: copied %X "
+ "seq %X rcvnxt %X fl %X\n", *seq,
+ TCP_SKB_CB(skb)->seq, tp->rcv_nxt,
+ flags))
break;
- }
+
offset = *seq - TCP_SKB_CB(skb)->seq;
if (tcp_hdr(skb)->syn)
offset--;
@@ -1443,8 +1447,9 @@ 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), KERN_INFO "recvmsg bug 2: "
- "copied %X seq %X\n", *seq,
- TCP_SKB_CB(skb)->seq);
+ "copied %X seq %X rcvnxt %X fl %X\n",
+ *seq, TCP_SKB_CB(skb)->seq,
+ tp->rcv_nxt, flags);
}
/* Well, if we have backlog, try to process it now yet. */