Commit 9ff5c59c authored Oct 12, 2005 by Herbert Xu Committed by David S. Miller Oct 12, 2005

[TCP]: Add code to help track down "BUG at net/ipv4/tcp_output.c:438!"



This is the second report of this bug.  Unfortunately the first
reporter hasn't been able to reproduce it since to provide more
debugging info.

So let's apply this patch for 2.6.14 to

1) Make this non-fatal.
2) Provide the info we need to track it down.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent afb997c6

net/ipv4/tcp_output.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -435,7 +435,14 @@ int tcp_fragment(struct sock sk, struct sk_buff skb, u32 len, unsigned int mss
		int nsize, old_factor;
		u16 flags;

		BUG_ON(len >= skb->len);
		if (unlikely(len >= skb->len)) {
		printk(KERN_DEBUG "TCP: seg_size=%u, mss=%u, seq=%u, "
		"end_seq=%u, skb->len=%u.\n", len, mss_now,
		TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
		skb->len);
		WARN_ON(1);
		return 0;
		}

		nsize = skb_headlen(skb) - len;
		if (nsize < 0)