Message CAL0TN04 and User Abend U0001 running TMSTPNIT.

Document ID : KB000022712
Last Modified Date : 14/02/2018
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Problem:

TMSTPNIT failed with User Abend U0001 and message
CAL0TN04: INTERNAL ERROR AT TMSTPNIT+00074A, CODE=...

Cause: 

The most common cause for this U0001 Abend is, that the AUDIT Data Set has passed the threshold. In this case you will also see the following highlighted console message:

IEFTMS9 TMC BACKUP REQUIRED, AUDIT FILE UTILIZATION IS CURRENTLY nn%

Note, the offset of TMSTPNIT, where the error occurs, can vary depending on the control statements used and on the PTF level of TMSTPNIT.

Resolution:

Run TMSCOPY with PARM='BACKUP' and rerun TMSTPNIT