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

[Christoph Hellwig <hch@infradead.org>]

On Sat, Oct 18, 2008 at 10:06:45PM -0500, Eric Sandeen wrote:
> This is probably the vmap cache aliasing problem that we paid a bit of
> attention to a few months ago, no?

Shouldn't the cachepolicy switch take care of that?  But yes, there
are various problems with I/O on vmap regions with virtually indexed
caches, see:

	http://www.spinics.net/lists/linux-arch/msg04301.html

	http://tree.celinuxforum.org/CelfPubWiki/JapanTechnicalJamboree21?action=AttachFile&do=get&target=celf_discussions.pdf

Actually, looking again at the second document it shows exactly the
symptoms you're seeing.


> 
> -Eric
> 
> 
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