From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sylvain Rochet Subject: Re: 2.6.28.9: EXT3/NFS inodes corruption Date: Thu, 6 Aug 2009 15:15:56 +0200 Message-ID: <20090806131555.GA23359@gradator.net> References: <20090420162017.GA28079@gradator.net> <20090716172749.GC3740@atrey.karlin.mff.cuni.cz> <20090725151751.GA6419@gradator.net> <20090727154253.GB8332@duck.suse.cz> <20090728112715.GA8442@gradator.net> <20090728135226.GA21682@duck.suse.cz> <20090728164142.GA13662@gradator.net> <20090803222901.GB23162@duck.suse.cz> <20090804111505.GA6433@gradator.net> <20090804225619.GB11097@duck.suse.cz> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="J/dobhs11T7y2rNN" Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Al Viro To: Jan Kara Return-path: Content-Disposition: inline In-Reply-To: <20090804225619.GB11097-pwKtmJkCtMINMLpHRKhSow@public.gmane.org> Sender: linux-nfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-ext4.vger.kernel.org --J/dobhs11T7y2rNN Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Wed, Aug 05, 2009 at 12:56:19AM +0200, Jan Kara wrote: >=20 > Thanks for testing. So you seem to be really stressting the path where > creation of new files / directories fails (probably due to group quota). Yes, there are 29 groups over quota on a total of 4499. Those are mainly=20 spammed websites and therefore quite stressed due to the amount of tries=20 to add new "data". > I have one idea what could cause your filesystem corruption, although=20 > it's a wild guess... Please try attached oneliner. Running since yesterday. > Also your corruption reminded me that Al Viro has been fixing problems > where we could cache one inode twice when a filesystem was mounted over N= FS > and that could also lead to a filesystem corruption. So I'm adding him to > CC just in case he has some idea. BTW Al, what do you think about the > problem I describe in the attached patch? I'm not sure if it can cause so= me > real problems but in theory it could... Should we upgrade NFS clients as well ? (now running 2.6.28.9) Sylvain --J/dobhs11T7y2rNN Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFKeteLDFub3qtEsS8RAkblAKCDyCR00ocoDY1Qxjp1bk6YWlPfkACgvdg9 qcCk43m4BmrsCFyT9U7VTwE= =Dhxc -----END PGP SIGNATURE----- --J/dobhs11T7y2rNN-- -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sylvain Rochet Subject: Re: 2.6.28.9: EXT3/NFS inodes corruption Date: Thu, 6 Aug 2009 15:15:56 +0200 Message-ID: <20090806131555.GA23359@gradator.net> References: <20090420162017.GA28079@gradator.net> <20090716172749.GC3740@atrey.karlin.mff.cuni.cz> <20090725151751.GA6419@gradator.net> <20090727154253.GB8332@duck.suse.cz> <20090728112715.GA8442@gradator.net> <20090728135226.GA21682@duck.suse.cz> <20090728164142.GA13662@gradator.net> <20090803222901.GB23162@duck.suse.cz> <20090804111505.GA6433@gradator.net> <20090804225619.GB11097@duck.suse.cz> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="J/dobhs11T7y2rNN" Cc: linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-nfs@vger.kernel.org, Al Viro To: Jan Kara Return-path: Received: from atreides.gradator.net ([212.85.155.42]:60660 "EHLO atreides.gradator.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755819AbZHFNP5 (ORCPT ); Thu, 6 Aug 2009 09:15:57 -0400 In-Reply-To: <20090804225619.GB11097-pwKtmJkCtMINMLpHRKhSow@public.gmane.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: --J/dobhs11T7y2rNN Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Wed, Aug 05, 2009 at 12:56:19AM +0200, Jan Kara wrote: >=20 > Thanks for testing. So you seem to be really stressting the path where > creation of new files / directories fails (probably due to group quota). Yes, there are 29 groups over quota on a total of 4499. Those are mainly=20 spammed websites and therefore quite stressed due to the amount of tries=20 to add new "data". > I have one idea what could cause your filesystem corruption, although=20 > it's a wild guess... Please try attached oneliner. Running since yesterday. > Also your corruption reminded me that Al Viro has been fixing problems > where we could cache one inode twice when a filesystem was mounted over N= FS > and that could also lead to a filesystem corruption. So I'm adding him to > CC just in case he has some idea. BTW Al, what do you think about the > problem I describe in the attached patch? I'm not sure if it can cause so= me > real problems but in theory it could... Should we upgrade NFS clients as well ? (now running 2.6.28.9) Sylvain --J/dobhs11T7y2rNN Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFKeteLDFub3qtEsS8RAkblAKCDyCR00ocoDY1Qxjp1bk6YWlPfkACgvdg9 qcCk43m4BmrsCFyT9U7VTwE= =Dhxc -----END PGP SIGNATURE----- --J/dobhs11T7y2rNN-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755820AbZHFNQA (ORCPT ); Thu, 6 Aug 2009 09:16:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755798AbZHFNP6 (ORCPT ); Thu, 6 Aug 2009 09:15:58 -0400 Received: from atreides.gradator.net ([212.85.155.42]:60660 "EHLO atreides.gradator.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755819AbZHFNP5 (ORCPT ); Thu, 6 Aug 2009 09:15:57 -0400 Date: Thu, 6 Aug 2009 15:15:56 +0200 From: Sylvain Rochet To: Jan Kara Cc: linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-nfs@vger.kernel.org, Al Viro Message-ID: <20090806131555.GA23359@gradator.net> References: <20090420162017.GA28079@gradator.net> <20090716172749.GC3740@atrey.karlin.mff.cuni.cz> <20090725151751.GA6419@gradator.net> <20090727154253.GB8332@duck.suse.cz> <20090728112715.GA8442@gradator.net> <20090728135226.GA21682@duck.suse.cz> <20090728164142.GA13662@gradator.net> <20090803222901.GB23162@duck.suse.cz> <20090804111505.GA6433@gradator.net> <20090804225619.GB11097@duck.suse.cz> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="J/dobhs11T7y2rNN" Content-Disposition: inline In-Reply-To: <20090804225619.GB11097@duck.suse.cz> User-Agent: Mutt/1.5.13 (2006-08-11) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: gradator@atreides.gradator.net Subject: Re: 2.6.28.9: EXT3/NFS inodes corruption X-SA-Exim-Version: 4.2.1 (built Tue, 09 Jan 2007 17:51:29 +0000) X-SA-Exim-Scanned: Yes (on atreides.gradator.net) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --J/dobhs11T7y2rNN Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Wed, Aug 05, 2009 at 12:56:19AM +0200, Jan Kara wrote: >=20 > Thanks for testing. So you seem to be really stressting the path where > creation of new files / directories fails (probably due to group quota). Yes, there are 29 groups over quota on a total of 4499. Those are mainly=20 spammed websites and therefore quite stressed due to the amount of tries=20 to add new "data". > I have one idea what could cause your filesystem corruption, although=20 > it's a wild guess... Please try attached oneliner. Running since yesterday. > Also your corruption reminded me that Al Viro has been fixing problems > where we could cache one inode twice when a filesystem was mounted over N= FS > and that could also lead to a filesystem corruption. So I'm adding him to > CC just in case he has some idea. BTW Al, what do you think about the > problem I describe in the attached patch? I'm not sure if it can cause so= me > real problems but in theory it could... Should we upgrade NFS clients as well ? (now running 2.6.28.9) Sylvain --J/dobhs11T7y2rNN Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFKeteLDFub3qtEsS8RAkblAKCDyCR00ocoDY1Qxjp1bk6YWlPfkACgvdg9 qcCk43m4BmrsCFyT9U7VTwE= =Dhxc -----END PGP SIGNATURE----- --J/dobhs11T7y2rNN--