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Description of problem:
If cman loses its connection to the cluster, it
forcibly shuts down the dlm using dlm_emergency_shutdown.
If the dlm is in use by gfs, as it often is, this
causes gfs to panic when it finds that its dlm locks
have suddenly gone away.

The problem is that it's never clear from the gfs panic
whether the root cause was an emergency shutdown or
something else.  In fact, there's often nothing on the
console or in the saved messages to clearly show
whether an emergency shutdown occured.


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


How reproducible:
Always

Steps to Reproduce:
1. run gfs
2. kick node from cluster
3.
  

Actual Results:  gfs/lock_dlm assertion panic

Expected Results:  loud warning that node was kicked from cluster
followed by gfs/lock_dlm assertion panic


Additional info: