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From: Dave Chinner <david@fromorbit.com>
To: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Eric Sandeen <sandeen@redhat.com>,
	Tim Shimmin <xfs-masters@oss.sgi.com>,
	xfs@oss.sgi.com, linux-kernel@vger.kernel.org,
	Johannes Weiner <hannes@saeurebad.de>
Subject: Re: latest -git: kernel BUG at fs/xfs/support/debug.c:54!
Date: Fri, 18 Jul 2008 08:40:12 +1000	[thread overview]
Message-ID: <20080717224012.GH29319@disturbed> (raw)
In-Reply-To: <19f34abd0807171229p724cc44ese3cb064a65fbd2c0@mail.gmail.com>

On Thu, Jul 17, 2008 at 09:29:39PM +0200, Vegard Nossum wrote:
> On Thu, Jul 17, 2008 at 9:18 PM, Vegard Nossum <vegard.nossum@gmail.com> wrote:
> > Thanks, you are right. I have adjusted my configuration, but I am
> > still able to produce this:
> >
> > BUG: unable to handle kernel paging request at b62a66e0
> > IP: [<c030ef88>] xfs_alloc_fix_freelist+0x28/0x490
> 
> FWIW, this is fs/xfs/xfs_alloc.c:1817:
> 
>         if (!pag->pagf_init) {

Which kind of implies that we've got a bogus fsbno
that we're using as the basis of allocation.....

What is the corruption you are inducing? Can you produce
a xfs_metadump image of the filesystem and put it up somewhere
that we can access it?

I suspect that we are not validating the block numbers coming
out of the various btrees as landing inside the filesystem....

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

  reply	other threads:[~2008-07-17 22:40 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-17 17:46 latest -git: kernel BUG at fs/xfs/support/debug.c:54! Vegard Nossum
2008-07-17 19:05 ` Eric Sandeen
2008-07-17 19:18   ` Vegard Nossum
2008-07-17 19:29     ` Vegard Nossum
2008-07-17 22:40       ` Dave Chinner [this message]
2008-07-19 13:16         ` Vegard Nossum

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