From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1EAF67F61 for ; Sat, 30 Mar 2013 21:03:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id AD1C7AC002 for ; Sat, 30 Mar 2013 19:03:36 -0700 (PDT) Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id qr7LlYzkp6T6AX1G for ; Sat, 30 Mar 2013 19:03:34 -0700 (PDT) Date: Sun, 31 Mar 2013 13:03:04 +1100 From: Dave Chinner Subject: Re: Xfs_repair and journalling -- EXT4 journal replay discussion Message-ID: <20130331020304.GL6369@dastard> References: <5147E360.10605@sandeen.net> <5148037B.5010706@hardwarefreak.com> <201303190924.29362.Martin@lichtvoll.de> <51483A7D.9050202@hardwarefreak.com> <5156DF72.1090703@hardwarefreak.com> <5157237A.40006@sandeen.net> <51573461.8070006@hardwarefreak.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <51573461.8070006@hardwarefreak.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: Stan Hoeppner Cc: Eric Sandeen , Subranshu Patel , xfs@oss.sgi.com On Sat, Mar 30, 2013 at 01:52:17PM -0500, Stan Hoeppner wrote: > On 3/30/2013 12:40 PM, Eric Sandeen wrote: > > On 3/30/13 7:49 AM, Stan Hoeppner wrote: > > >> Ok, so here's the skinny on the source of our confusion WRT how/when > >> EXT4 replays journals, and it's rather interesting. Ted Ts'o explained > >> the following. > > > > Where was this, out of curiosity? > > Private email exchange with Ted. I thought it was best from an > etiquette standpoint not to wholesale paste his two private emails to > the XFS list, but to summarize. Maybe it would be ok if I put it on my > web server for a couple of days then remove it. > > http://www.hardwarefreak.com/ext4-journaling.txt That again? I'll just point to this post from Ted in 2004: http://zork.net/~nick/mail/why-reiserfs-is-teh-sukc It's the same FUD about XFS journalling and power failures that Ted has been claiming for the past 10+ years. It's been rebutted so many times I can now do it in three words: volatile drive caches. Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs