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Date: Tue, 24 Jun 2014 13:48:15 -0500
From: Eric Sandeen <sandeen@sandeen.net>
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Subject: Re: Metadata CRC error upon unclean unmount
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To: Fanael Linithien <fanael4@gmail.com>
Cc: xfs@oss.sgi.com

On 6/24/14, 11:19 AM, Fanael Linithien wrote:
> 2014-06-24 18:08 GMT+02:00 Eric Sandeen <sandeen@sandeen.net>:
>> Do you have any kind of reproducer for this?
> 
> The closest thing to a reliable reproducer I found is:
> dd if=/dev/urandom of=some.file
> <VM reset while dd is still running>
> 
>> Any chance you created an xfs_metadump before the xfs_repair?
> 
> I still have the broken FS, but the dump is 225 MB. Will it be OK if I
> repro it on a clean FS?
> 
>> What constitutes an "unclean unmount" in your case; a VM reset?  A host
>> crash?
> 
> A VM reset.
> 
>> (This is a VM, right?)
> 
> Right.

FWIW, I've been unable to reproduce this in about 4 attempts, using
virtualbox, and doing a guest reset.

-Eric

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