From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755570Ab1HESUx (ORCPT ); Fri, 5 Aug 2011 14:20:53 -0400 Received: from mx1.redhat.com ([209.132.183.28]:17265 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753990Ab1HESUv (ORCPT ); Fri, 5 Aug 2011 14:20:51 -0400 Date: Fri, 5 Aug 2011 14:20:09 -0400 From: Dave Jones To: Christoph Lameter Cc: Pekka Enberg , Markus Trippelsdorf , Linux Kernel , Linus Torvalds , Andrew Morton , Jens Axboe Subject: Re: list corruption in the last few days. (block ? crypto ?) Message-ID: <20110805182008.GA22314@redhat.com> Mail-Followup-To: Dave Jones , Christoph Lameter , Pekka Enberg , Markus Trippelsdorf , Linux Kernel , Linus Torvalds , Andrew Morton , Jens Axboe References: <20110805010038.GA18148@redhat.com> <20110805084614.GA1588@x4.trippels.de> <20110805163948.GA11113@redhat.com> <20110805165119.GA11593@redhat.com> <20110805171607.GA11703@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 05, 2011 at 01:14:50PM -0500, Christoph Lameter wrote: > On Fri, 5 Aug 2011, Dave Jones wrote: > > > > Argh another debugging code issue. Anyone who sees this please verify that > > > it also occurs with debugging off. I ran this code for 9 months in > > > various configs but only sporadically with debugging support since that > > > switches the lockless stuff. > > > > This started turning up immediately as soon as it got merged to mainline. > > Which leads me to believe no-one is running -next with debugging on either. > > Perhaps we should force debugging on for a week once per release cycle. > > I have run some tests over the last hours with kvm and > CONFIG_SLUB_DEBUG_ON as well as CONFIG_DEBUG_LIST set but (aside from > other unrelated backtraces in other subsystems) did not see this issue. > > Can I get a .config? Maybe that will help. http://codemonkey.org.uk/junk/adamo.config Dave