netdev - Re: TCP connection stalls under 2.6.24.7

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Date:	Wed, 16 Jul 2008 10:07:56 +0200
From:	Thomas Jarosch <thomas.jarosch@...ra2net.com>
To:	"Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi>
Cc:	Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
	netdev@...r.kernel.org, Patrick McHardy <kaber@...sh.net>,
	Sven Riedel <sr@...urenet.de>,
	Netfilter Developer Mailing List 
	<netfilter-devel@...r.kernel.org>,
	"Dâniel Fraga" <fragabr@...il.com>
Subject: Re: TCP connection stalls under 2.6.24.7

Terve Ilpo,

On Tuesday, 15. July 2008 22:17:47 Ilpo Järvinen wrote:
> > I can easily reproduce the problem, so how do we go from here?
>
> FRTO in 2.6.24.y is broken, I recently fixed couple of things in FRTO,
> late 2.6.25.y or 2.6.26 should be used to have all the fixes. If you can
> reproce with either one, please tcpdump it (I just returned, was couple of
> weeks away, so I'm slowly catching up what has happened in between here).
> ...I guess somebody had dumped at least 2.6.24.y but that's not
> interesting due to known (and fixed) bugs with FRTO.

I tried 2.6.25.10 without luck. I have a git "master" tree from yesterday 
which is also stalling for some seconds around ~220kb and then recovering. 
The connection completly stalls at around ~1.3mb. I'll send you a tcpdump
in private soon as it's going to be rather big for the mailinglist.

Thomas
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