DR Operations Hang After a Few Loops When CPU Power Control Is Also Running (BugID 4114317)

Description: When multiple concurrent DR operations occur, or when psradm is run at the same time as a DR operation, the system can hang because of a mutex deadly embrace.

Workaround: Perform DR operations serially (one DR operation at a time); and allow each to complete successfully before running psradm, or before beginning another DR operation.