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To: Bojan Smojver <bojan@rexursive.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.5.68: NFS3+exported /mnt/cdrom+eject: system lockup
References: <1051754203.3eb07edb09c51@imp.rexursive.com>
From: Trond Myklebust <trond.myklebust@fys.uio.no>
Date: 01 May 2003 12:40:48 +0200
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>>>>> " " == Bojan Smojver <bojan@rexursive.com> writes:

     > NFS3 server was running on the box and it was exporting a
     > mounted /mnt/cdrom to the world. On "umount /mnt/cdrom" it
     > reported "device busy". On "eject /mnt/cdrom" it locked the
     > system hard.

     > What kind of information would help debugging this?

The only bug there is the hard crash. You are never allowed to unmount
a device that has been exported.

Cheers,
  Trond