From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757150Ab1CIKDG (ORCPT ); Wed, 9 Mar 2011 05:03:06 -0500 Received: from cantor2.suse.de ([195.135.220.15]:57102 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757123Ab1CIKDD (ORCPT ); Wed, 9 Mar 2011 05:03:03 -0500 Date: Wed, 9 Mar 2011 21:02:51 +1100 From: NeilBrown To: Johan Hovold Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org Subject: Re: MD-raid broken in 2.6.37.3? Message-ID: <20110309210251.744ef954@notabene.brown> In-Reply-To: <20110309090622.GA3570@localhost> References: <20110309090622.GA3570@localhost> X-Mailer: Claws Mail 3.7.8 (GTK+ 2.20.1; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 9 Mar 2011 10:06:22 +0100 Johan Hovold wrote: > Hi Greg and Neil, > > I updated from 2.6.37.2 to 2.6.37.3 yesterday only to find that my > raid-0 partitions are no longer recognised. The raid-1 ones still are, > though. They did not show up after a reboot. (It has happened once > fairly recently that these exact partitions were not recognised but a > reboot fixed it -- blamed my disks.) > > Today I mistakenly booted into 2.6.37.3 again -- still missing. No > problems with 2.6.37.2. > > Browsing the changelog I found f663ed60892c3e1d4490b079a45d9e546271c40c > (md: Fix - again - partition detection when array becomes active) and > other md-related changes so I figure one of these could perhaps be to > blame? > > As it is my personal/production machine I feel uncomfortable bisecting > this at this point, but maybe Neil has an idea of what might be going > on? Hi Johan, could you please be a bit more specific about the problem that you experienced. What, exactly, was "no longer recognised"? Was it that the array (e.g. /dev/md1) didn't appear, or was it that the array did appear, but that it has a partition table, and the partitions (e.g. /dev/md1p1, /dev/md1p2) did not appear? If you still have the boot-log from when you booted 2.6.37.3 (or can recreated) and can get a similar log for 2.6.37.2, then it might be useful to compare them. Thanks, NeilBrown