S101W PROGRAM CHECK. OLD PSW=dd d d dddd d d dddddd
CCSW=aa bbbbbbbbbbbbbbbb CCB ADDR=cccccc
Cause: A program check has occurred. The message displays the following information, if
available, in hexadecimal notation:
aa is the last channel command code executed by the system
b...b is the channel status word.
c...c is the address of the command control block
d...d is the program old PSW.
System Action: The system enters the wait state.
Programmer Action: none.
Operator Action: In most cases the operator should obtain a storage dump and return the
printer and console output to the IBM customer engineer. To restart the system, re-IPL.
Used with Courtesy and Permission of International Business Machines, Inc.