Re: automounted filesystems being unmounted and mounted every minute

["Brian J. Murrell" <brian@interlinx.bc.ca>]

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On Tue, 2006-17-10 at 00:32 +0800, Ian Kent wrote:
> On Mon, 2006-10-16 at 09:30 -0400, Brian J. Murrell wrote:
> > Autofs 5.0.1 seems to be doing an unmount/mount of my home dir
> > filesystems every minute or so.  Verbose output from autofs shows:
> > 
> > Oct 16 09:27:23 jenny automount[18632]: expiring path /autohome/share
> > Oct 16 09:27:23 jenny automount[18632]: unmounting dir = /autohome/share
> > Oct 16 09:27:23 jenny automount[18632]: expired /autohome/share
> > Oct 16 09:27:23 jenny automount[18632]: expiring path /autohome/brian
> > Oct 16 09:27:23 jenny automount[18632]: unmounting dir = /autohome/brian
> > Oct 16 09:27:23 jenny automount[18632]: expired /autohome/brian
> > Oct 16 09:27:24 jenny automount[18632]: attempting to mount entry /autohome/share
> > Oct 16 09:27:24 jenny automount[18632]: mount(nfs): mounted linux:/home/share on /autohome/share
> > Oct 16 09:27:24 jenny automount[18632]: mounted /autohome/share
> > Oct 16 09:27:24 jenny automount[18632]: mount still busy /autohome
> > 
> > Why is it in the same window of operation expiring, unmounting and
> > remounting filesystems?
> 
> Is the directory busy?
> That is is it the pwd of some process or have open files?

Don't think so:

$ sudo ls -l /proc/*/cwd | grep share
[nothing]

> If it's not then it will be umounted when it times out, after 1 minute
> in this case. Then if some smart application scans directory trees when
> it sees mount or umount activity then it will be mounted again. We've
> seen this with older versions of hald.

Heh.

> The best way to find out what is causing this is to enable debug logging

As in "automount -d"?

> on a test machine and check what pid is causing mount activity.

I tried this (automount -d) but am not seeing any more information than
-v provides.

b.

-- 
My other computer is your Microsoft Windows server.

Brian J. Murrell

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