From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o4U8rM6g089221 for ; Sun, 30 May 2010 03:53:22 -0500 Received: from mailsrv14.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 88F67384C23 for ; Sun, 30 May 2010 01:55:45 -0700 (PDT) Received: from mailsrv14.zmi.at (mailsrv1.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id RmMA4DeVARUT5EJE for ; Sun, 30 May 2010 01:55:45 -0700 (PDT) Received: from mailsrv.i.zmi.at (h081217106033.dyn.cm.kabsi.at [81.217.106.33]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv14.zmi.at (Postfix) with ESMTPSA id 43CA4800184 for ; Sun, 30 May 2010 10:55:44 +0200 (CEST) Received: from saturn.localnet (saturn.i.zmi.at [10.72.27.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv.i.zmi.at (Postfix) with ESMTPSA id F3DC883C825 for ; Sun, 30 May 2010 10:55:43 +0200 (CEST) From: Michael Monnerie Subject: Re: puzzling error: XenServer, LVM and XFS Date: Sun, 30 May 2010 10:55:43 +0200 References: <201005270857.39048@zmi.at> <20100527115153.GB13112@infradead.org> In-Reply-To: <20100527115153.GB13112@infradead.org> MIME-Version: 1.0 Message-Id: <201005301055.43430@zmi.at> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============8313823174340020454==" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com --===============8313823174340020454== Content-Type: multipart/signed; boundary="nextPart1719874.pVEGPVWJrK"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit --nextPart1719874.pVEGPVWJrK Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Donnerstag, 27. Mai 2010 Christoph Hellwig wrote: > This looks like the Xen block device code is buggy and doesn't handle > the I/O pattern XFS throws at it. A sector 0 error during mount > usually is the superblock barrier test write. To verify that > assumptions try mounting the XFS filesystems with -o nobarrier and > see if it goes away. Note that this is only for testing, and I > would not recommend it for production use. If it makes the error go > away please file a bug with the Xen guys to fix their barrier > support by either implementing it properly or not advertizing it. =20 You're right! As this does not happen with normal partitions but only=20 LVM volumes, there must be some problem in the combination of XenServer,=20 LVM and XFS. There is nothing I can do to report this to Citrix, at least I didn't=20 find a bug report facility for that, so it won't be fixed but now we=20 know it. This was XenServer 5.5 =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services http://proteger.at [gesprochen: Prot-e-schee] Tel: 0660 / 415 65 31 // Wir haben im Moment zwei H=E4user zu verkaufen: // http://zmi.at/langegg/ // http://zmi.at/haus2009/ --nextPart1719874.pVEGPVWJrK Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (GNU/Linux) iEYEABECAAYFAkwCKA8ACgkQzhSR9xwSCbTt6ACgopcSvsRgHRiG4ojF3tU4TvlY P3sAn00WqWwuNyQuyjwDKVBxBDSBsFTM =KyR2 -----END PGP SIGNATURE----- --nextPart1719874.pVEGPVWJrK-- --===============8313823174340020454== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs --===============8313823174340020454==--