From mboxrd@z Thu Jan  1 00:00:00 1970
From: Theodore Ts'o <tytso@mit.edu>
Subject: Re: online resize of ext4 hung (3.2.51 / 1.42.5)
Date: Fri, 25 Oct 2013 19:57:45 -0400
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Cc: linux-ext4@vger.kernel.org
To: Jakob Haufe <sur5r@sur5r.net>
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On Fri, Oct 25, 2013 at 10:06:32PM +0200, Jakob Haufe wrote:
> 
> I can leave the machine sitting around for another day or maybe two, so if
> it's necessary to extract more information from somewhere, please tell me.

Can you run "echo t > /proc/sysrq-trigger" and send the output from
the console (or from dmesg)?  Or otherwise trigger sysrq-t?  This will
show the stacks of all of the processes, which would be useful to
figure out what might be happening.

Thanks,

						- Ted