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Re: XFS filesystem corruption on the arm(el) architecture

To: Tobias Frost <tobi@xxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, debian-arm@xxxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx
Subject: Re: XFS filesystem corruption on the arm(el) architecture
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Wed, 01 Oct 2008 19:56:13 -0500
In-reply-to: <20081002004556.GB30001@disturbed>
References: <1222893502.5020.40.camel@moria> <20081002004556.GB30001@disturbed>
User-agent: Thunderbird 2.0.0.17 (Macintosh/20080914)
Dave Chinner wrote:
> Adding xfs@xxxxxxxxxxx to the cc list so all the XFS folk see this.
> 
> On Wed, Oct 01, 2008 at 10:38:22PM +0200, Tobias Frost wrote:
>> (Note: Please CC me, as I am NOT on the lkml!!)
>>
>> Some time ago, I discovered some problems with xfs. Unfortunatly, I had
>> no time diving into it. However, some weeks ago some other people
>> running debian on ARM machines confirmed the problem on their machines
>> starting at [1], so I think it is appropitate to at least report it.  
>> It has also been seen on 2.6.27-rc4  [2].
>>
>> summary: the xfs partition corrupts almost immediatly after creation. I
>> had the impression, that the first unlink (rm) causes the corruption,
>> but this might be just an impression.
>>
>> During the tests I made, I conserved a image of the corrupted filesystem
>> which I can make available on request (it's 26 Mbyte, gzipped).
>>
>> Please let me know how I can assist you in finding the problem. 
>>
>>
>> [1] http://lists.debian.org/debian-arm/2008/08/msg00155.html
>> [2] http://lists.debian.org/debian-arm/2008/08/msg00184.html
>>
>> Best regards,
>> Tobias Frost
>> http://blog.coldtobi.de
>>
>> PS: Thank you for your great work!

At one point there were other patches floating around to "fix" arm which
were not correct.  Are these problems seen on a pristine 2.6.27-rc4
kernel, or with other special arm patches applied?

-Eric

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