lkml.org 
[lkml]   [2003]   [Nov]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: possible bug in tcp_input.c
On Oct-24 2003, Fri, 19:57 +0200
Andi Kleen <ak@suse.de> wrote:

> > /* tcp_input.c, line 1138 */
> > static inline int tcp_head_timedout(struct sock *sk, struct tcp_opt *tp)
> > {
> > return tp->packets_out && tcp_skb_timedout(tp, skb_peek(&sk->write_queue));
> > }
>
> tp->packets_out > 0 implies that there is at least one packet in the write
> queue (it counts the number of unacked packets in flight, which are kept
> in the write queue). When that's not the case something else is wrong.

Yes, that's exactly what davem said. The corruption is happening somewhere
in netsched/imq code that's not even part of the official kernel tree (and
I'm told there's nobody to maintain the patch at present).

Thanks,
--
Tomas Szepe <szepe@pinerecords.com>

P.S. I can post the patchset we've been using on the crashing machines
in case someone's interested, it's reasonably short:

9101 Jul 6 11:48 bridge-nf-0.0.7-against-2.4.22pre3.diff.gz
4123 Jul 6 11:14 imq-2.4.22pre3-1.diff.gz
1883 Jul 6 12:01 imq-nf-20030625-2.4.22pre3.diff.gz
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:58    [W:0.032 / U:0.332 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site