linux-kernel - Re: XFS Fails Quality Assurance Tests on ARM

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Message-ID: <47DF39FB.7060306@sandeen.net>
Date:	Mon, 17 Mar 2008 22:41:47 -0500
From:	Eric Sandeen <sandeen@...deen.net>
To:	David Miller <davem@...emloft.net>
CC:	hch@...radead.org, andi@...stfloor.org, byron.bbradley@...il.com,
	linux-kernel@...r.kernel.org
Subject: Re: XFS Fails Quality Assurance Tests on ARM

David Miller wrote:
> From: Christoph Hellwig <hch@...radead.org>
> Date: Tue, 30 Oct 2007 17:54:18 +0000
> 
>> On Tue, Oct 30, 2007 at 12:47:35AM -0500, Eric Sandeen wrote:
>>> There was a patch floating around to "fix" it but it's not on-disk
>>> compatible w/ x86 & friends, it just makes things consistent for arm.  I
>>> think packing some of these structures would take care of it, but this
>>> problem could use some attention & testing I think, it's been floating
>>> around a long time.
>> Do you have a pointer to that patch?  Once the unaliged fields are
>> identified simply using get_unaligned on them should fix this issue.
> 
> True, but there is the tertiary issue that the packing done by these
> platforms might mean that the on-disk format is different on different
> platforms which the XFS folks likely want to avoid if possible.

Right.

FWIW, this patch should fix up at least the most egregious problems, and
in fact I think most likely resolves the whole issue with the old arm
ABI, though for some reason, qemu issues keep me from getting a whole
xfstests QA run to complete....

http://oss.sgi.com/archives/xfs/2008-03/msg00151.html

-Eric

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