From: Trond Myklebust <trond.myklebust@fys.uio.no>
Subject: Re: lockd crash
Date: Thu, 18 Oct 2007 10:44:44 -0400
Message-ID: <1192718684.7437.3.camel@heimdal.trondhjem.org>
References: <Pine.LNX.4.62.0710181511090.759@office2.c1.internal>
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Cc: nfs@lists.sourceforge.net
To: Allard Hoeve <allard@byte.nl>
In-Reply-To: <Pine.LNX.4.62.0710181511090.759@office2.c1.internal>
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On Thu, 2007-10-18 at 15:18 +0200, Allard Hoeve wrote:
> Hello all,
> 
> We've been experincing strange lockd crashes on one of our file servers 
> lately. The kernel lockd gets stuck in a D state and is unkillable, while 
> other NFS processes continue to work fine. Files are served, we're able to 
> mount/umount etc, but trying to attain a lock results in a (killable with 
> KILL) process on the client.
> 
> We're running 2.6.17.3 currently. I know that's not a very new kernel, but 
> we're stuck at that version for the moment, I'm afraid.
> 
> I've attached a stacktrace that dmesg gave us. It would be great if you 
> can take a look at it.
> 
> Regards,
> 
> Allard Hoeve

Already fixed in mainline. Please see

http://client.linux-nfs.org/Linux-2.6.x/2.6.23-rc7/linux-2.6.23-001-fix_lockd_circular_dependency.dif

Trond


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