linux-kernel - Re: INFO: task mount:11202 blocked for more than 120 seconds

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Date:	Wed, 12 Mar 2008 20:53:12 +0100
From:	Chr <chunkeey@....de>
To:	Samuel Tardieu <sam@...1149.net>
Cc:	device-mapper development <dm-devel@...hat.com>,
	Christian Kujau <lists@...dbynature.de>,
	David Chinner <dgc@....com>,
	LKML <linux-kernel@...r.kernel.org>, xfs@....sgi.com
Subject: Re: INFO: task mount:11202 blocked for more than 120 seconds

On Wednesday 12 March 2008 19:03:51 Samuel Tardieu wrote:
>
> David> Oh, dm-crypt. Well, I'd definitely start looking there. XFS has
> David> a history of exposing dm-crypt bugs, and these hangs appear to
> David> be I/O congestion/scheduling related and not XFS. Also, we
> David> haven't changed anything related to plug/unplug of block
> David> devices in XFS recently, so that also points to some other
> David> change as well...
>
me too... 

http://lkml.org/lkml/2008/3/11/377
(BTW: I'm still bisecting it... can somebody please confirm that 2.6.24-git17 
http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.24-git17.bz2
was the _last_ "good" one?)  

BTW:
by pressing "SYSRQ-S (Emerg. Sync)" over and over again can unlock
some but not all "D" tasks... 

Regards,
	Chr.

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