Description of problem:
/etc/init.d/halt does not recognize binded file systems.
There are silly error messags during shut down the system.


Version-Release number of selected component (if applicable):

Testen on RH7.2 and RH7.3 
initscripts 6.67-1


How reproducible:

Let say i have a directory 
/var/lib/foo on /dev/hda7
and
/vars/lib/foo on /dev/hda1 (root device)
/dev/hda7 is mounted on /var

I use bind mounting like this
mount --bind /vars/lib/foo /var/lib/foo

or in fstab:
/vars/lib/foo /var/lib/foo none bind 0 0

    
Actual results:

well if i shutdown the system usign halt or reboot command i get:      


(...)
Unmounting file systems:  umount2: Device or resource busy          
umount: /dev/hda7: not mounted                                    
umount: /var: Illegal seek                                          
[FAILED]                                                                    
                                            
Unmounting file systems (retry):  umount2: Device or resource busy  
umount: /dev/hda7: not mounted                                    
umount: /var: Illegal seek
[FAILED]                                             
                                                                    
                                              
Unmounting file systems (retry):  umount2: Device or resource busy  
umount: /dev/hda7: not mounted                                    
umount: /var: Illegal seek  
[FAILED]        
    
(...)

Expected results:

no error messages
halt script should recognize the bind file systems and unmount it before
other file systems

Additional info:

This problem would be occured on RH8.0 too. (not tested)