Description of problem:
This applies to RHEL3 AS/ES/WS Update 3 and 4. While 

Rebooting/Shutdown, system hangs with the error given below.


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

probably vixie-cron 3.0.1-75.1 rpm and possibly initscripts/chkconfig.

How reproducible:
Always


Steps to Reproduce:
1.Reboot or Shutdown
2.
3.
  
Actual results:
****************TRUNCATED***********************
Sending all processes the TERM signal [OK]
Sending all processes the KILL signal [OK]
Turning off swap                      [OK]
Turning of quotas                     [OK]
Unmounting file system: umount2: Device or Resource busy
umount:/var: device is busy           [FAILED]
****************TRUNCATED************************
The [FAILED] message is repeated 3 to 30 (approx) times,
resulting in an inordinately long reboot/shutdown times.


Expected results:
Clean normal reboot/ shutdown


Additional info:
In some systems downgrading vixie-cron-3.0.1-75.1 rpm to
3.0.1-74 rpm helps but not always.