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Re: XFS: possible memory allocation deadlock in kmem_alloc (mode:0x250)

To: xfs@xxxxxxxxxxx
Subject: Re: XFS: possible memory allocation deadlock in kmem_alloc (mode:0x250)
From: Emmanuel Lacour <elacour@xxxxxxxxxxxxxxx>
Date: Tue, 3 Dec 2013 10:53:58 +0100
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20131128100521.GO10988@dastard>
References: <20131128091322.GC5337@xxxxxxxxxxxxxxx> <20131128100521.GO10988@dastard>
User-agent: Mutt/1.5.21 (2010-09-15)
On Thu, Nov 28, 2013 at 09:05:21PM +1100, Dave Chinner wrote:
> On Thu, Nov 28, 2013 at 10:13:22AM +0100, Emmanuel Lacour wrote:
> > 
> > Dear XFS users,
> > 
> > 
> > I run a Ceph cluster using XFS on Debian wheezy servers and Linux 3.10
> > (debian backports). I see the following line in our logs:
> > 
> > XFS: possible memory allocation deadlock in kmem_alloc (mode:0x250)
> > 
> > does this reveal a problem in my setup or may I ignore it? If it's a
> > problem, can someone give me any hint on solving this?
> 
> It might be, but you need to provide more information for us to be
> able to make any intelligent comment on the message. Start here:
> 
> http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F
> 


The problem continue and crashed my ceph cluster again, so here is all
the informations said in the FAQ:

http://people.easter-eggs.org/~manu/xfs.log

This may be related to a friend problem here:

http://tracker.ceph.com/issues/6386


thanks for any help on solving this!

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