The CA Common Services for z/OS r14.1 Health Checker component went into a Spinloop after a CA product address space was cancelled

Document ID : KB000113369
Last Modified Date : 18/09/2018
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Issue:
When the customer attempted to recycle CA PTXMAN, the CA Health Checker component (CAHCKCCS) went into a SPIN loop.
Environment:
CA DB2 Tools (PTXMAN) which uses the CA Common Services Health Checker component (CAHCKCCS)  is active in a z/OS environment with IBM APAR OA49676 applied 
Cause:
The cause was PTXMAN turning off the TCBFX bit in error which resulted in a spin loop.  When the error occurs, there is timer queue verification and queue correction that can orphan timer queue elements resulting in the lost XCF timer.  
Resolution:
Apply Health Checker PTF RO91550.  SPIN LOOP AFTER CANCELING CA PRODUCT W/HCHECK.  This can occur in an environment with IBM APAR OA49676 applied.  
Additional Information:
Reference the discussion of OA49676 found in the IBM Support description of PI66709