From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758584Ab2CFIHd (ORCPT ); Tue, 6 Mar 2012 03:07:33 -0500 Received: from ud10.udmedia.de ([194.117.254.50]:40275 "EHLO mail.ud10.udmedia.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758388Ab2CFIHb (ORCPT ); Tue, 6 Mar 2012 03:07:31 -0500 Date: Tue, 6 Mar 2012 09:07:27 +0100 From: Markus Trippelsdorf To: Neal Cardwell Cc: Christian Kujau , netdev@vger.kernel.org, LKML Subject: Re: WARNING: at net/ipv4/tcp_input.c:3418 Message-ID: <20120306080727.GA1641@x4> References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2012.03.06 at 00:46 -0500, Neal Cardwell wrote: > On Wed, Feb 29, 2012 at 12:41 PM, Christian Kujau wrote: > > This is still happening with 3.3.0-rc5, .config & dmesg here: > > > >   http://nerdbynature.de/bits/3.3.0-rc4/ipv4/ > > I was finally able to reproduce this issue where there are warnings > about sacked_out going negative (since 3.3.0-rc4), and my testing > shows that this patch seems to fix the issue: > > http://patchwork.ozlabs.org/patch/144844/ > > For folks who were seeing this problem and are so inclined, feel free > to try the latest 3.3-rc6 kernel (or davem's "net" tree in git, if > that's easier) with that patch applied, and let me know how it goes. Thanks for tracking this down, Neal. In my case it looks like the issue was an "once in a lifetime" event. So no amount of testing would prove anything. -- Markus