From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jason L Tibbitts III <tibbs@math.uh.edu>
Subject: Re: A weird autofs problem
Date: 17 Aug 2007 09:27:11 -0500
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	<1187320655.3560.2.camel@raven.themaw.net>
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To: Ian Kent <raven@themaw.net>
Cc: autofs@linux.kernel.org

>>>>> "IK" == Ian Kent <raven@themaw.net> writes:

IK> That NFS problem was fixed in 2.6.18 I think.

Well, I'm at 2.6.20, so....

IK> Something has changed?

I honestly can't think of anything.

IK> We'll need you to get a first hand look at a broken system and
IK> have a look around and see what really is wrong. And you know that
IK> a debug log would be good too.

OK, here's a machine that's gone bad.  df shows:

nas01:/export/users-00/boyarkin
                             -         -         -   -  /home/boyarkin

Attempting to unmount the directory results in "device is busy" as the
user is currently logged in and has files open on the filesystem.

Unfortunately because the user has not logged out of this machine, I
haven't been able to restart the automounter so debugging is not
enabled.

Simply running "umount -l /home/boyarkin" as roott causes the mount to
appear properly.

I've kicked the user out of the machine and restarted the automounter
with debugging on.  I'll continue to watch this machine and see if the
problem reoccurs.

 - J<