From: ms419@freezone.co.uk
Subject: F_SETLK failed, file already locked
Date: Tue, 21 Sep 2004 18:08:17 -0700
Sender: nfs-admin@lists.sourceforge.net
Message-ID: <E2C26788-0C33-11D9-AB4A-000A95C71776@freezone.co.uk>
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To: nfs@lists.sourceforge.net
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I'm running user mode linux using a root image stored on an NFS mount. 
I frequently (though thus far unpredictably) encounter the following 
error starting UML:

F_SETLK failed, file already locked by pid 25176

http://www.sfu.ca/~jdbates/nfs/screenlog

Where "pid 25176" changes, but is never the pid of a running process: 
I've tried "ls /proc/25176", no such process exists. So far, the only 
solution I've found is restarting the NFS server. This corrects the 
problem every time.

I don't know whether the problem is with the NFS server, NFS client, or 
user mode linux. Can anyone advise?

The NFS server is running Debian unstable, nfs-kernel-server 1.0.6-3, & 
a custom 2.4.27 kernel.

The NFS client is running Debian unstable, nfs-common 1.0.6-3, & a 
custom 2.6.7 kernel. They're connected by a crossover cable @ 10/100.

Thank you very much for any help!

Jack


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