netdev - Re: TCP sockets stalling

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Message-ID: <alpine.DEB.2.00.0911271103590.2459@melkinpaasi.cs.helsinki.fi>
Date:	Fri, 27 Nov 2009 11:10:51 +0200 (EET)
From:	"Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi>
To:	Frederic Leroy <fredo@...rox.org>
cc:	Asdo <asdo@...ftmail.org>, Netdev <netdev@...r.kernel.org>,
	e1000-devel@...ts.sourceforge.net
Subject: Re: TCP sockets stalling - help! (long)

On Thu, 26 Nov 2009, Frederic Leroy wrote:

> Le Wed, 25 Nov 2009 05:25:28 +0100,
> Asdo <asdo@...ftmail.org> a écrit :
> 
> > Hi netdev and e1000 people,
> > 
> > I have a weird problem here.
> > [...]
> 
> I have the same kind of problem at home. I can't copy big files over
> ssh unless I limit the rate ( ssh -l 8000 ... )
> After reading your mail, I make some quick tests ( see below).
> 
> Results in short :
> - netcat always work.
> - ssh stalls, nearly immediately.

One important result is missing though... could you perhaps get a tcpdump 
from the stall and get also the info available in /proc/net/tcp for the 
connection (during the stall), that would help some in figuring out what 
is going on... ...Preferably in new/renamed thread, don't forget to cc me.

-- 
 i.