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Date: Mon, 07 Jul 2008 20:32:32 +0200
From: Kris Kennaway <kris@FreeBSD.org>
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Cc: freebsd-current@freebsd.org, Mark Atkinson <atkin901@yahoo.com>
Subject: Re: Has anyone else seen any form of in memory or
	on	disk	corruption?
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gnn@freebsd.org wrote:
> At Mon, 07 Jul 2008 09:30:07 -0700,
> Mark Atkinson wrote:
>> Have you tried turning off background fsck on boot to see if the problem
>> goes away?
> 
> The problem persists even without background fsck.
> 
> I am starting to lean towards some sort of weird gzip bug, but have no
> real evidence yet.

Did you try zfs yet?  It will differentiate between corruption that 
occurs above (or in) or below the filesystem layer.

Kris