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Re: [XFS] 2.6.29-rc2: XFS internal error XFS_WANT_CORRUPTED_GOTO

To: Jacek Luczak <difrost.kernel@xxxxxxxxx>
Subject: Re: [XFS] 2.6.29-rc2: XFS internal error XFS_WANT_CORRUPTED_GOTO
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 20 Jan 2009 07:45:15 -0500
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>, Eric Sandeen <sandeen@xxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, xfs mailing list <xfs@xxxxxxxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>
In-reply-to: <20090120121335.GA19182@xxxxxxxxxxxxx>
References: <497468C1.3000001@xxxxxxxxx> <4974CA20.6050308@xxxxxxxxxxx> <20090120004611.GA6445@disturbed> <20090120112910.GA6831@xxxxxxxxxxxxx> <4975B9C4.7030401@xxxxxxxxx> <20090120114906.GA12526@xxxxxxxxxxxxx> <20090120121335.GA19182@xxxxxxxxxxxxx>
User-agent: Mutt/1.5.18 (2008-05-17)
On Tue, Jan 20, 2009 at 07:13:35AM -0500, Christoph Hellwig wrote:
> On Tue, Jan 20, 2009 at 06:49:06AM -0500, Christoph Hellwig wrote:
> > > > Just curious:  do you have CONFIG_LBD set?
> > > > 
> > > Hi Christoph,
> > > 
> > > the answer is:
> > > $ grep LBD .config
> > > # CONFIG_LBD is not set
> > 
> > Ok, let me reproduce it without that set..
> Ok, on 32-bit x86 without CONFIG_LBD I can reliably reproduce the issue
> with the following script:

Bisected down to:

commit 91cca5df9bc85efdabfa645f51d54259ed09f4bf
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date:   Thu Oct 30 16:58:01 2008 +1100

    [XFS] implement generic xfs_btree_delete/delrec

    Make the btree delete code generic. Based on a patch from David Chinner
    with lots of changes to follow the original btree implementations more
    closely. While this loses some of the generic helper routines for
    inserting/moving/removing records it also solves some of the one off bugs
    in the original code and makes it easier to verify.

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