From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965412AbXCGRKY (ORCPT ); Wed, 7 Mar 2007 12:10:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965380AbXCGRKX (ORCPT ); Wed, 7 Mar 2007 12:10:23 -0500 Received: from systemlinux.org ([83.151.29.59]:56992 "EHLO m18s25.vlinux.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422750AbXCGRKW (ORCPT ); Wed, 7 Mar 2007 12:10:22 -0500 Date: Wed, 7 Mar 2007 18:09:55 +0100 From: Andre Noll To: Andrew Morton Cc: Andrew Vasquez , linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, James Bottomley , Jens Axboe , Alasdair G Kergon , Adrian Bunk Subject: Re: qla2xxx BUG: workqueue leaked lock or atomic Message-ID: <20070307170955.GA4252@skl-net.de> References: <20070226133153.GC4095@skl-net.de> <20070226182617.GC9968@andrew-vasquezs-computer.local> <20070227101100.GA22572@skl-net.de> <20070227185134.GJ20397@andrew-vasquezs-computer.local> <20070228151829.GI22572@skl-net.de> <20070228153722.GJ22572@skl-net.de> <20070306203952.471218df.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="45Z9DzgjV8m4Oswq" Content-Disposition: inline In-Reply-To: <20070306203952.471218df.akpm@linux-foundation.org> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --45Z9DzgjV8m4Oswq Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 20:39, Andrew Morton wrote: > On Wed, 28 Feb 2007 16:37:22 +0100 Andre Noll wrot= e: >=20 > > On 16:18, Andre Noll wrote: > >=20 > > > With 2.6.21-rc2 I am unable to reproduce this BUG message. However, > > > writing to both raid systems at the same time via lvm still locks up > > > the system within minutes. > >=20 > > Screenshot of the resulting kernel panic: > >=20 > > http://systemlinux.org/~maan/shots/kernel-panic-21-rc2-huangho2.png > >=20 >=20 > It died in CFQ. Please try a different IO scheduler. Use something > like >=20 > echo deadline > /sys/block/sda/queue/scheduler >=20 > This could still be the old qla2xxx bug, or it could be a new qla2xxx bug, > or it could be a block bug, or it could be an LVM bug. OK. I'm running with deadline right now. But I guess this kernel panic was caused by an LVM bug because lockdep reported problems with LVM. Nobody responded to my bug report on the LVM mailing list (see http://www.redhat.com/archives/linux-lvm/2007-February/msg00102.html). Non-working snapshots and no help from the mailing list convinced me to ditch the lvm setup [1] in favour of linear software raid. This means I can't do lvm-related tests any more. BTW: Are ext3 filesystem sizes greater than 8T now officially supported? Thanks Andre [1] vg of two hardware raids, 10T together, a single lv and some snapshots --=20 --45Z9DzgjV8m4Oswq Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFF7vHjWto1QDEAkw8RAkZdAKCRiDjS3z62bHLfHqhbCDbBgTgJYwCfSA9O Chbn1P57DdIY8mvJ781K5rg= =EJJc -----END PGP SIGNATURE----- --45Z9DzgjV8m4Oswq--