From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Monakhov Subject: Re: openvz: Oops in ext4 when VPS starts Date: Fri, 23 Jul 2010 11:43:32 +0400 Message-ID: <87tynqfxsr.fsf@dmon-lap.sw.ru> References: <20100722150145.GE14882@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "Ted Ts'o" , linux-kernel@vger.kernel.org, devel@openvz.org, Andreas Dilger , linux-ext4@vger.kernel.org To: Drunkard Zhang Return-path: Received: from mail-ey0-f174.google.com ([209.85.215.174]:46737 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751064Ab0GWHnk convert rfc822-to-8bit (ORCPT ); Fri, 23 Jul 2010 03:43:40 -0400 In-Reply-To: (Drunkard Zhang's message of "Fri, 23 Jul 2010 10:22:08 +0800") Sender: linux-ext4-owner@vger.kernel.org List-ID: Drunkard Zhang writes: > 2010/7/22 Ted Ts'o : >> On Thu, Jul 22, 2010 at 05:39:16PM +0800, Drunkard Zhang wrote: >>> I run into a oops when mirgate /vz directory to ext4 lvm under gent= oo + openvz. >> >> What were you doing precisely at the time of the oops? =C2=A0The oop= s logs >> indicates it was a cp, but a cp of what? =C2=A0And is this somethign= you >> can easily reproduce? >> Wow. Sorry almost missed that thread. 2.6.32-openvz-budarin.1 does not contains any specific patches for ext4= =2E So it is probably memory corruption caused by ovz stuff (2.6.32 is sti= ll experimental), or you caught unknown bug, the later it very unlikely be= cause "cp" is very popular cmd :) I'll try to reproduce your issue. > I did: "/etc/init.d/vz start" with vpsid 101 and 109, which from: > http://bb.xnull.de/projects/gentoo/amd64/stage4-amd64-current.tar.bz2 > following the guide from: > http://www.gentoo.org/proj/en/vps/openvz-howto.xml > > Didn't change the content of stage4-amd64-current.tar.bz2 yet. > It looks like when "/etc/init.d/vz start", it will cp all files from > /vz/private/101/ to /vz/root/root/101/ That's not true, root/$veid is just stacked filesystem on top of private/$veid. > > The oops allways reproduced yesterday between reboot and kernel > remake, but this morning when I trying to finger out the oops point > using strace, I can't get the oops anymore. Sorry for interrupt,:-( > > Maybe distcc caused problem? I used to make kernel... Sorry again. > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4"= in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752692Ab0GWHnn (ORCPT ); Fri, 23 Jul 2010 03:43:43 -0400 Received: from mail-ey0-f174.google.com ([209.85.215.174]:46737 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751064Ab0GWHnk convert rfc822-to-8bit (ORCPT ); Fri, 23 Jul 2010 03:43:40 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-type:content-transfer-encoding; b=JEAQRZkPK3LoOXSkCNzCx+AD0M+Qhn3oityZIa3hDKY3vir0nN6u58/1x1TvMVmPpw pAN+9ISKV+i0HEzDakChKRAjznps2ZbgygDFd5n2+hdxZnlNfwZedLh7BbLXmf5IzSRV gI9hDoedWRYNidZmKwsROADJkjtyqyOwiSpx0= From: Dmitry Monakhov To: Drunkard Zhang Cc: "Ted Ts'o" , linux-kernel@vger.kernel.org, devel@openvz.org, Andreas Dilger , linux-ext4@vger.kernel.org Subject: Re: openvz: Oops in ext4 when VPS starts References: <20100722150145.GE14882@thunk.org> Date: Fri, 23 Jul 2010 11:43:32 +0400 In-Reply-To: (Drunkard Zhang's message of "Fri, 23 Jul 2010 10:22:08 +0800") Message-ID: <87tynqfxsr.fsf@dmon-lap.sw.ru> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Drunkard Zhang writes: > 2010/7/22 Ted Ts'o : >> On Thu, Jul 22, 2010 at 05:39:16PM +0800, Drunkard Zhang wrote: >>> I run into a oops when mirgate /vz directory to ext4 lvm under gentoo + openvz. >> >> What were you doing precisely at the time of the oops?  The oops logs >> indicates it was a cp, but a cp of what?  And is this somethign you >> can easily reproduce? >> Wow. Sorry almost missed that thread. 2.6.32-openvz-budarin.1 does not contains any specific patches for ext4. So it is probably memory corruption caused by ovz stuff (2.6.32 is still experimental), or you caught unknown bug, the later it very unlikely because "cp" is very popular cmd :) I'll try to reproduce your issue. > I did: "/etc/init.d/vz start" with vpsid 101 and 109, which from: > http://bb.xnull.de/projects/gentoo/amd64/stage4-amd64-current.tar.bz2 > following the guide from: > http://www.gentoo.org/proj/en/vps/openvz-howto.xml > > Didn't change the content of stage4-amd64-current.tar.bz2 yet. > It looks like when "/etc/init.d/vz start", it will cp all files from > /vz/private/101/ to /vz/root/root/101/ That's not true, root/$veid is just stacked filesystem on top of private/$veid. > > The oops allways reproduced yesterday between reboot and kernel > remake, but this morning when I trying to finger out the oops point > using strace, I can't get the oops anymore. Sorry for interrupt,:-( > > Maybe distcc caused problem? I used to make kernel... Sorry again. > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html