From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753992AbZBHXYi (ORCPT ); Sun, 8 Feb 2009 18:24:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751819AbZBHXY3 (ORCPT ); Sun, 8 Feb 2009 18:24:29 -0500 Received: from mail-fx0-f20.google.com ([209.85.220.20]:36498 "EHLO mail-fx0-f20.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751319AbZBHXY2 (ORCPT ); Sun, 8 Feb 2009 18:24:28 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=dUv8kIUtFvSdZZfsBg29mLKn1fvhWDENMIo3y/SHta2fMdrw2E07CFH2H1rRT8M49l geF2YywMRgAPnnAKy+FAbXXyfzYc3+IPg1jngSRsPD5T1szTrYb7PxC780UYDuKRWIcj g2LDlWP3XBem4vq4HUP+w0AO0a6Y/KWXFKR4M= Subject: Re: XFS kernel BUG at fs/buffer.c:470! with 2.6.28.4 From: Alessandro Bono To: Dave Chinner Cc: linux-kernel , linux-xfs In-Reply-To: <20090208221625.GB8830@disturbed> References: <1234011974.7435.11.camel@champagne.cantina> <20090208221625.GB8830@disturbed> Content-Type: text/plain Date: Mon, 09 Feb 2009 00:24:23 +0100 Message-Id: <1234135463.12370.47.camel@champagne.cantina> Mime-Version: 1.0 X-Mailer: Evolution 2.24.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2009-02-09 at 09:16 +1100, Dave Chinner wrote: > On Sat, Feb 07, 2009 at 02:06:13PM +0100, Alessandro Bono wrote: > > Hi all > > > > This time I hit kernel bug without any particular operation, normal > > browsing, mail, news, etc > > tell me if you need info asap because I want to reformat this machine > > and switch back to ext3. > > > > xfs seems really unstable in this particular > > machine and after this crash I lose again configuration file of opened > > program at crash time > > That's not XFS's fault - that's a broken application that does not > safely overwrite files and hence you lose data on crash. In the past I lose configuration files from kde, gconf based programs (gnome), pan, firefox, etc maybe xfs expose more this problem > > > Feb 7 12:43:12 champagne kernel: [ 5828.167041] ------------[ cut > > here ]------------ > > Feb 7 12:43:12 champagne kernel: [ 5828.167048] kernel BUG at > > fs/buffer.c:470! > > I can't remember seeing that problem before. > > > Call Trace: > > [] ? need_resched+0x1e/0x28 > > [] ? __up_write+0x12/0x45 > > [] ? xfs_destroy_ioend+0x23/0x71 [xfs] > > [] ? xfs_end_bio_delalloc+0x0/0x19 [xfs] > > [] ? xfs_end_bio_delalloc+0x0/0x19 [xfs] > > [] ? run_workqueue+0x79/0xfe > > [] ? worker_thread+0xf0/0x102 > > [] ? autoremove_wake_function+0x0/0x2e > > [] ? worker_thread+0x0/0x102 > > [] ? kthread+0x47/0x73 > > [] ? schedule_tail+0x27/0x60 > > [] ? child_rip+0xa/0x11 > > [] ? kthread+0x0/0x73 > > [] ? child_rip+0x0/0x11 > > Standard delayed allocation IO completion trace. No idea what > could have caused it. Perhaps a memory error? I'm starting to think the same thing If needed I can replace memory dimm, this is my principal notebook and I need it to work > > Can you send the output of xfs_info on that filesystem, and > perhaps run an xfs_repair -n on it to see if there are any > undetected errors on disk? root@champagne:/home/sandro# xfs_info / meta-data=/dev/mapper/vol00-root isize=256 agcount=17, agsize=1600000 blks = sectsz=512 attr=1 data = bsize=4096 blocks=26781696, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 log =internal bsize=4096 blocks=12500, version=1 = sectsz=512 sunit=0 blks, lazy-count=0 realtime =none extsz=4096 blocks=0, rtextents=0 root fs on lvm on dm_crypt to run xfs_repair I have to boot from a live distribution that support this stack, I need some time > > Also, I note that you are using ext4 on some disks. Does this > problem show up if you don't use ext4 at all? (We have had problems > in the past with one filesystem not leaving bufferheads in the > correct state and the system crashing when a different type of > filesystem got them reallocated). First time of this bug, not sure if it's ext4 related Ext4 disk is my personal mirror of data taken from my server, I can reformat ext4 disk to xfs Ironically I started test ext4 to replace xfs on this machine :-( thanks > > Cheers, > > Dave. -- --- Cordiali Saluti Alessandro Bono