Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759637Ab2FHBMX (ORCPT ); Thu, 7 Jun 2012 21:12:23 -0400 Received: from mx1.redhat.com ([209.132.183.28]:4796 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759166Ab2FHBMW (ORCPT ); Thu, 7 Jun 2012 21:12:22 -0400 Date: Thu, 7 Jun 2012 21:12:15 -0400 From: Dave Jones To: Linus Torvalds Cc: Andrew Morton , Linux Kernel , linux-mm@kvack.org Subject: Re: a whole bunch of crashes since todays -mm merge. Message-ID: <20120608011215.GB7191@redhat.com> Mail-Followup-To: Dave Jones , Linus Torvalds , Andrew Morton , Linux Kernel , linux-mm@kvack.org References: <20120608002451.GA821@redhat.com> <20120608010008.GA7191@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 Content-Length: 982 Lines: 28 On Thu, Jun 07, 2012 at 06:06:27PM -0700, Linus Torvalds wrote: > On Thu, Jun 7, 2012 at 6:00 PM, Dave Jones wrote: > > > > Or I might just be getting lucky.. > > Do you have SPLIT_RSS_COUNTING enabled? I don't think so ? I have CONFIG_SPLIT_PTLOCK_CPUS=999999, so it looks like that never gets defined unless I'm missing something obvious. > Do you see multiple "BUG: Bad rss-counter state" messages? no > The sync_mm_rss() thing could basically overwrite an already-free'd > piece of memory, so it could cause pretty random stuff. But I think > you need to be unlucky to hit the window. the 8169 debug stuff I was trying to run used the function tracer. Could that have widened the window ? Dave -- 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/