Re: [PATCH] tcp: Modify the condition for the first skb to collapse
From: Eric Dumazet
Date: Mon Jun 17 2013 - 06:29:45 EST
On Mon, 2013-06-17 at 13:29 -0400, Jun Chen wrote:
> When the condition of tcp_win_from_space(skb->truesize) > skb->len is
> true but the before(start, TCP_SKB_CB(skb)->seq) is also true, the final
> condition will be true. The follow line:
> int offset = start - TCP_SKB_CB(skb)->seq;
> BUG_ON(offset < 0);
> this BUG_ON will be triggered.
Really this should never happen, we must track what's happening here.
Are you using a pristine kernel, without any patches ?
Are you able to reproduce this bug in a short amount of time ?
What kind of driver is in use ? (your stack trace was truncated)
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/