Re: mounted multiple times

["David G. Miller (aka DaveAtFraud)" <dave davenjudy org>]

jvian10 charter net wrote:

> On Wed, 2005-11-30 at 13:26 -0400, Trevor TeC Christian wrote:
>  
>
> > > On Wed, November 30, 2005 12:55 pm, Jack Tanner said:
> >    
> >
> > > > > On an FC4 client, I'm mounting an smbfs filesystem over the network. In
> > > > > /etc/fstab, I have
> > > > >
> > > > > //server/share /mount/point smbfs
> > > > > credentials=/home/user/.smbcreds,noauto,user  0 0
> > > > >
> > > > > The user's .bash_profile contains the actual mount command, which goes off
> > > > > without a hitch. Consequently, the user can issue
> > > > >
> > > > > $ umount /mount/point
> > > > >
> > > > > when necessary.
> > > > >
> > > > > It's all well and good, until the user connects to the FC4 client twice,
> > > > > and
> > > > > runs two xterms which both source .bash_profile.
> > > > >
> > > > > Now the mount command has been issued twice, so here's what happens:
> > > > >
> > >      
> > >
> > >
> > > Should script such that the share isn't mounted unless it isn't already
> > > mounted.
> >    
> >
> > > > > $ umount /mount/point
> > > > > umount: it seems /mount/point is mounted multiple times
> > > > >
> > > > > Well, yes, it has been mounted multiple times; but how can the user
> > > > > unmount
> > > > > it now?
> > > > >
> > >      
> > >
> > >
> > > One should be able to use ps to find the PID of the mounts and kill them
> > > directly i believe.
> > >
> > >   ps ax | grep mount
> > >
> > > then kill -9 the corresponding PID's
> >    
>
> Mount does not leave an active process running.  Thus this would have no
> affect.  Did you test your idea?
>
>  
>
> > > Hope this helps.
> >    
> >
> > > > >
> > > > > --
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> > > > >
> > >      
> > >
> > >
> > >
> > > --
> > > *Trevor "TeC" Christian*
> > > Cell #: (767) 225 4472
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> >    
Question, does umount still unmount "one instance" of the mount?  This 
is the behavior under Red Hat Enterprise 3 (2.4 kernel) which also 
doesn't complain.  The application I QA hasn't managed to get confused 
enough under RHEL4 (we start supporting RHEL4 under our next release) to 
mount one of our mount points multiple times so I don't have a data 
point for RHEL4 (2.6 kernel).

Under RHEL3, I just keep issuing umounts for the mount point until I get 
rid of all of them.  Would this work for your situation?  Any idea when 
this "feature" got added to mount/umount?

Cheers,
Dave