172

Explanation
Execute channel program (EXCP) processing found
that an unauthorized program issued the EXCPVR macro.  One of the
following conditions must be present for the program to be authorized: The program must run under system protection key 0 through 7.
The program must be in supervisor state.
The SVC 114 authorization bit is set on in the job step control
block (JSCB).
The SVC 114 authorization bit is set on in the data extent block
(DEB).

System action
The system abnormally ends the current task.

System programmer response
  If the system wrote a dump, look
at field TCBEXCPD at offset X'C0' in the task control block
(TCB) of the current task.  TCBEXCPD points to the EXCP debugging
area (XDBA). The XDBA contains diagnostic data associated with the
EXCP processor.
If the error recurs and the program issuing
the EXCPVR or EXCP macro is not in error, look at the messages in
the job log for more information. Search problem reporting data bases
for a fix for the problem. If no fix exists, contact the IBM® Support Center.

Programmer response
Ensure that the program is authorized to
issue the EXCPVR macro or SVC 0, the EXCP macro.  Check the problem
program for the error.  If the error cannot be determined, run the
job again, requesting an ABEND dump.  Notify the system programmer.

Source
Execute channel program (EXCP)