lkml.org 
[lkml]   [1999]   [Jun]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: TCP/PPP bug 2.3.5?

also experiencing this on 2.2.9


On Fri, 4 Jun 1999, Rik van Riel wrote:

> On Fri, 4 Jun 1999, Rik van Riel wrote:
>
> > it looks like there's some bug in the TCP stack of
> > at least 2.3.5.
>
> After looking closely, I have seen what seems to be
> a LIFO problem, so it might have something to do with
> bottom halves not getting run (or another LIFO order
> which I'm unaware of).
>
> When the symptoms occur, network packets are in the
> 'out' queue for several _minutes_, until the kernel
> comes around to sending them -- even on an almost
> empty line this problem occurs!
>
> Active Internet connections (w/o servers)
> 0oto Recv-Q Send-Q Local Address Foreign Address State
> tcp 0 64 agratax.demon.nl:1287 k052r.balpol.tudelf:cvs ESTABLISHED
> tcp 0 9 agratax.demon.nl:1286 humbolt.nl.linux.o:pop3 ESTABLISHED
> tcp 0 0 agratax.demon.nl:1284 k052r.balpol.tudelf:cvs TIME_WAIT
> tcp 0 6170 agratax.demon.nl:1274 terra.geo.uu.nl:smtp ESTABLISHED
> tcp 0 0 agratax.demon.nl:1231 pluto.news.demon.n:nntp ESTABLISHED
> tcp 0 0 localhost:7100 localhost:1028 ESTABLISHED
> tcp 0 0 localhost:1028 localhost:7100 ESTABLISHED
>
> The '6170' above has been there for almost 10 minutes (!),
> while newer traffic seems to run without too much problems.
> The newer '64' seems to have problems as well though :(
>
> This simply kills TCP connections. Somebody still awake
> should probably code an emergency patch so that a fix is
> available before Europe wakes up again :)
>
> Rik -- Open Source: you deserve to be in control of your data.
> +-------------------------------------------------------------------+
> | Le Reseau netwerksystemen BV: http://www.reseau.nl/ |
> | Linux Memory Management site: http://www.linux.eu.org/Linux-MM/ |
> | Nederlandse Linux documentatie: http://www.nl.linux.org/ |
> +-------------------------------------------------------------------+
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.rutgers.edu
> Please read the FAQ at http://www.tux.org/lkml/
>


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:52    [from the cache]
©2003-2011 Jasper Spaans