For the generalized trace facility (GTF), a response to message AHL101A or AHL102A, or a control statement in the GTF parmlib member, specified more than 256 device numbers for the IO keyword.
GTF ignores all options on the line in the response or control statement that contains the error. The system continues processing, but GTF initialization does not continue until the error is corrected. If the error occurred in the GTF parmlib member, the system issues message AHL124I to identify the error source.
In your reply to this message, correct the IO keyword and enter all options on the line again. If the error is in the GTF parmlib member, notify the system programmer.
If a GTF control statement caused the error, correct the IO keyword in the GTF parmlib member and restart GTF.
AHLTPMT
Generalized trace facility (GTF)