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Date: Mon, 25 Jun 2012 16:45:02 +0200
From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
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To: Josef Bacik <jbacik@fusionio.com>
CC: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: btrfs deadlock in 3.5-rc3
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>
> Thats weird, sysrq+w should have a bunch of stacktraces but it's empty, so
> unless theres a bug theres nothing blocked.  Is the box actually hung or is it
> just taking forever?  Maybe try sysrq+w again to see if the one you pasted was
> just a fluke?  Thanks,

This one looks better:
http://pastebin.com/raw.php?i=R4pztDRt

Sorry.

Stefan