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Date:	Sun, 5 Dec 2010 11:09:54 +0100
From:	Heinz Diehl <htd@...tha.org>
To:	Matt <jackdachef@...il.com>
Cc:	Mike Snitzer <snitzer@...hat.com>, Milan Broz <mbroz@...hat.com>,
	Andi Kleen <andi@...stfloor.org>,
	linux-btrfs <linux-btrfs@...r.kernel.org>,
	dm-devel <dm-devel@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	htd <htd@...cy-poultry.org>,
	Chris Mason <chris.mason@...cle.com>, htejun@...il.com,
	linux-ext4@...r.kernel.org, Jon Nelson <jnelson@...poni.net>
Subject: Re: hunt for 2.6.37 dm-crypt+ext4 corruption? (was: Re: dm-crypt
 barrier support is effective)

On 05.12.2010, Matt wrote: 

> I should have made it clear that the results I get are observed when
> using the kernels/checkouts *with* the dm-crypt multi-cpu patch,
> without the patch I didn't see that kind of problems (hardlocks, files
> missing, etc.)

I have to take back my other two emails, stating that no corruption
happened with the dm-crypt multi-cpu patch. Today, I encountered
filesystem corruption on one, and a complete hardlock on another machine.
No logfile entries, no m-sysrq, a complete deadlock. Filesystem was
corrupted here too, had to reboot from CD.

The machines with plain 2.6.37-rc4 are up and running...

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