PROBLEM:	(QAR 48497)	(Patch ID: TCR141-004)
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This fixes a problem that occurred when MEMORY CHANNEL errors were encountered 
at the same time that a particular code path was executed.  When these events 
occurred simultaneously, the distributed lock manager (DLM) would hang.  We 
were only able to reproduce this problem by artificially introducing MEMORY 
CHANNEL errors at a steady and significant rate.  This bug only affected DLM 
communications over MEMORY CHANNEL. The new code checks for errors and if it 
finds one it sleeps a bit and tries the operation again.