From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756137AbZFZGdU (ORCPT ); Fri, 26 Jun 2009 02:33:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752097AbZFZGdM (ORCPT ); Fri, 26 Jun 2009 02:33:12 -0400 Received: from mail-ew0-f210.google.com ([209.85.219.210]:49502 "EHLO mail-ew0-f210.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750973AbZFZGdM (ORCPT ); Fri, 26 Jun 2009 02:33:12 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=hzRAQ1hQQxMcIiCLSJhZmyzTc2+JKR45TVEMYxFNFIWLxDeu+ZieRZwv8hXQ2WcSWI nJOxoO7XTQuO780keYo45288hDBv6QLvg6je+XS2sXkuakT2O+I0WMl5Fq9yS7vCDXTZ RRGBMv/XCQiw5yhfdlxvF+jDPzut2ZR0IJIkU= Message-ID: <4A446998.4070508@gmail.com> Date: Fri, 26 Jun 2009 08:24:24 +0200 From: Niel Lambrechts User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b3pre) Gecko/20090513 Fedora/3.0-2.3.beta2.fc11 Thunderbird/3.0b2 MIME-Version: 1.0 To: Tejun Heo CC: Alan Cox , "linux.kernel" , Theodore Tso Subject: Re: 2.6.29 regression: ATA bus errors on resume References: <4A17C39E.2030302@gmail.com> <4A19F006.3000303@kernel.org> <20090525091534.13ae103c@lxorguk.ukuu.org.uk> <4A1B164B.1010108@gmail.com> <4A1B76EB.9040500@kernel.org> <4A1B8193.1010703@gmail.com> <4A1B8328.80801@kernel.org> <4A1B8873.1040101@gmail.com> <4A1BEFB6.80205@kernel.org> <4A1C316C.9040201@gmail.com> <4A1C8444.9040605@kernel.org> <4A1D47C6.1070504@gmail.com> <4A2424A2.5020704@gmail.com> <4A25EA78.7070705@kernel.org> <4A25FBD1.70000@gmail.com> <4A2A1521.5020407@gmai l.com> <4A437442.8000909@gmail.com> <4A4396E9.1030509@gmail.co m> <4A441A69.1010803@gmail.com> In-Reply-To: <4A441A69.1010803@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/26/2009 02:46 AM, Tejun Heo wrote: > Hello, Niel. > > Niel Lambrechts wrote: > >> I've recently switched my root partition from OpenSUSE 11.1 to Fedora 11 >> and since then I've not again seen the issue. I'm still using vanilla >> 2.6.30 generated with the same .config and EXT4 as before, so I have no >> idea why I cannot reproduce the issue. I still use hibernate + sleep >> frequently, and I just checked - I have 5 days uptime with a mount count >> of 20 and the file-system is still clean. >> >> The one big difference is that my original partition was a EXT2 -> EXT3 >> -> EXT4 upgrade job over a long period of time, and some of the EXT4 >> parameters now used by Fedora 11 on the reformatted root partition are >> different from what I had then. Here is a summary of the differences in >> case it matters at all: >> > Eh... if my analysis is correct the bug will be dependent on some > non-deterministic things including timing and layout of blocks of the > file which the filesystem touchs during suspend/resume. I'm fairly > sure the problem is still there. Oh well, it seems I'll have to > construct a synthetic case to test it. Anyways, please let me know if > you encounter the problem again. I'll keep you in loop with further > patches. > Understood, what I mean to imply is that I might (at least temporarily) be shielded from the bug because reformatting the root partition could possibly have removed some fragmentation and improved the initial disk layout. With the previous partition layout there would also have been a mixture of extents and non-extents based files since that system was upgraded from EXT2 to EXT3 to EXT4. I'll try to boot from 2.6.29 again as well, and put it through some suspend/resume cycles just in case that made any difference. Regards, Niel