Re: XFS Fails Quality Assurance Tests on ARM

[Eric Sandeen <sandeen@sandeen.net>]

David Miller wrote:
> From: Christoph Hellwig <hch@infradead.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