Date: Sun, 19 Oct 2008 18:22:44 +0200
From: Lennert Buytenhek <buytenh@wantstofly.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Eric Sandeen <sandeen@sandeen.net>, Martin Michlmayr <tbm@cyrius.com>,
       Tobias Frost <tobi@coldtobi.de>, linux-kernel@vger.kernel.org,
       debian-arm@lists.debian.org, xfs@oss.sgi.com,
       Hiroki KUMAGAI <hiroki.kumagai@toshiba.co.jp>
Subject: Re: XFS filesystem corruption on the arm(el) architecture
Message-ID: <20081019162244.GF4129@xi.wantstofly.org>
References: <20081002004556.GB30001@disturbed> <48E4213E.9090508@sandeen.net> <20081016212500.GA27228@deprecation.cyrius.com> <48F7BC9F.4080909@sandeen.net> <20081017070109.GA30726@deprecation.cyrius.com> <48F89E0F.6030307@sandeen.net> <20081018085752.GS25834@deprecation.cyrius.com> <20081019014830.GI31761@disturbed> <48FAA445.9050800@sandeen.net> <20081019090702.GA1925@infradead.org>
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On Sun, Oct 19, 2008 at 05:07:02AM -0400, Christoph Hellwig 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?

Setting cachepolicy=uncached should make aliasing issues disappear.
If you're still seeing issues with cachepolicy=uncached, it's likely
some other issue.
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