The system encountered an unrecoverable error while attempting to handle monitor call processing.
The system attempts to end GTF. The system issues other messages which indicate the exact problem.
If GTF is active, and does not end, the operator should stop it.
Look at the messages in the job log. Collect all printed output and output data sets related to the problem. Search problem reporting data bases for a fix for the problem. If no fix exists, contact the IBM® Support Center.
Generalized trace facility (GTF)
AHLSETEV