From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frederic Leroy Subject: Re: TCP sockets stalling - help! (long) Date: Thu, 26 Nov 2009 23:33:02 +0100 Message-ID: <20091126233302.42be8780@houba> References: <4B0CB1B8.8030402@shiftmail.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: netdev@vger.kernel.org, e1000-devel@lists.sourceforge.net To: Asdo Return-path: Received: from sd-11162.dedibox.fr ([88.191.70.230]:43556 "EHLO sd-11162.dedibox.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752928AbZKZWkY convert rfc822-to-8bit (ORCPT ); Thu, 26 Nov 2009 17:40:24 -0500 In-Reply-To: <4B0CB1B8.8030402@shiftmail.org> Sender: netdev-owner@vger.kernel.org List-ID: Le Wed, 25 Nov 2009 05:25:28 +0100, Asdo a =C3=A9crit : > Hi netdev and e1000 people, >=20 > 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. I thought fault cames from a kernel update or my wifi card update. Apparently, I was wrong for the hardware. Here are the test I just made :=20 network: SG ----- eth_100_Mbps ----- ISV_BOX ))) wifi_~1.5Mb ((( HOUBA host HOUBA: ---- gentoo - updated frequently (once a week) kernel vanilla : Linux houba 2.6.32-rc6-fredo4-04866-g47caac1 #5 PREEMPT Fri Nov 6 14:20:20 CET 2009 i686 Intel(R) Pentium(R) M processor 1400MHz GenuineIntel GNU/Linux host SG:=20 ---- debian stable - not updated recently kernel vanilla : Linux sg 2.6.32-rc5-fredo3 #2 Mon Oct 19 02:25:29 CEST 2009 i586 GNU/Linux=20 /dev/sda is a USB disk mounted on media/big TESTS ----- HOUBA command for tests : netcat -l -p 2000 | pv > /dev/null TEST1 - OK : ~5min fredo@sg:~/remote_wake$ cat /dev/null | netcat houba 2000 TEST2 - OK : ~5min fredo@sg:~/remote_wake$ cat /dev/sda | netcat houba 2000 TEST3 - OK : fredo@sg:~/remote_wake$ cat /media/big/home/fredo/cdanslair/cdanslair_20091125.wmv | netcat -q 0 houba 2000 result : 291MO 0:03:32 [1,37MO/s] TEST4 - FAILED fredo@sg:~/remote_wake$ scp /media/big/home/fredo/cdanslair/cdanslair_20091125.wmv houba: Stalled within seconds (5216Kb transferred) : cdanslair_20091125.wmv 1% 5216KB 0.0KB/s - stalled - --=20 =46r=C3=A9d=C3=A9ric Leroy