From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarek Poplawski Subject: Re: large packet loss take2 2.6.31.x Date: Tue, 24 Nov 2009 13:46:25 +0000 Message-ID: <20091124134624.GA9474@ff.dom.local> References: <81bfc67a0911232217n41b9ac02w3b7770b789e5d209@mail.gmail.com> <20091124111946.GA7883@ff.dom.local> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Frans Pop , Andi Kleen , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Jeff Kirsher , Jesse Brandeburg , e1000-devel@lists.sourceforge.net To: Caleb Cushing Return-path: Received: from fg-out-1718.google.com ([72.14.220.158]:40818 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932911AbZKXNq2 (ORCPT ); Tue, 24 Nov 2009 08:46:28 -0500 Content-Disposition: inline In-Reply-To: <20091124111946.GA7883@ff.dom.local> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, Nov 24, 2009 at 11:19:46AM +0000, Jarek Poplawski wrote: ... > Alas it's not all information I asked. E.g. "netstat -s before faulty > kernel" and "netstat -s after faulty kernel" seem to be the same file: > netstat_after.slave4.log.gz. On the other hand, there is a lot of tcp retransmits there: Tcp: 17 active connections openings 0 passive connection openings 14 failed connection attempts 0 connection resets received 0 connections established 45 segments received 49 segments send out 19 segments retransmited 0 bad segments received. 19 resets sent So it might point at the driver yet. It would be interesting to see more of this: could you repeat "netstat -s" and "ethtool -S eth0" after rebooting with both kernels and doing a few minutes of similar tcp activities (against the router or some other "good" site). Btw, please remind us the exact kernel versions. If you can, try 2.6.32-rc8 instead of 2.6.31. Jarek P.