Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751316AbVIBNsl (ORCPT ); Fri, 2 Sep 2005 09:48:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751317AbVIBNsk (ORCPT ); Fri, 2 Sep 2005 09:48:40 -0400 Received: from ns2.limegroup.com ([66.92.115.81]:40583 "EHLO ns2.limegroup.com") by vger.kernel.org with ESMTP id S1751316AbVIBNsj (ORCPT ); Fri, 2 Sep 2005 09:48:39 -0400 Date: Fri, 2 Sep 2005 09:48:21 -0400 (EDT) From: Ion Badulescu X-X-Sender: ion@guppy.limebrokerage.com To: Guillaume Autran cc: John Heffner , Ion Badulescu , "David S. Miller" , linux-net@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: Possible BUG in IPv4 TCP window handling, all recent 2.4.x/2.6.x kernels In-Reply-To: <43184D79.6040009@mrv.com> Message-ID: References: <20050901.154300.118239765.davem@davemloft.net> <2d02c76a84655d212634a91002b3eccd@psc.edu> <43184D79.6040009@mrv.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 809 Lines: 17 On Fri, 2 Sep 2005, Guillaume Autran wrote: > I experienced the very same problem but with window size going all the way > down to just a few bytes (14 bytes). dump files available upon requests :) > Ion, how were you able to reproduce the issue ? Can the same type of traffice > always reproduce the issue or is it more intermittent ? I have no problem whatsoever reproducing it, at least with the kind of traffic I described. I had 4 flows like that running yesterday, and all 4 had TCP window sizes smaller than 500 bytes on the receiver by mid-day. -Ion - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/