075

Explanation

Initial program load (IPL) could not load a module.

The right-most four bytes of the program status word (PSW) have the following format: 
xrr00www
where:
x
Irrelevant information.
rr
A hexadecimal reason code indicating the reason for the failure.
www
The wait state code.
The reason code (rr) is one of the following:
01
IPL could not find IRIM IEAIPL01 in the SYS1.NUCLEUS data set. This could be caused by:
  • Previous I/O error reading SYS1.NUCLEUS
  • Mismatch in IODF or IOCDS of true system configuration
  • Device cabling error for IODF or IOCDS
02
A module is too large; it is longer than 4096 bytes.
03
Either the delimiter for the end of the IPL resource initialization module (IRIM) list was encountered before IPL found all the IRIMs or a pre-MVS™ SP 4.3 IPL text was attempting to IPL a system at a level of MVS SP 4.3 or higher.
04
IPL could not find an IRIM member in SYS1.NUCLEUS.
05
An IRIM module is too large; it is longer than 4096 bytes.
06
The IPL text on the volume used to IPL did not match the nucleus code resident on that volume.

System action

The system enters a non-restartable wait state.

Operator response

Record the wait state PSW. Notify the system programmer, and obtain a stand-alone dump, if requested.

System programmer response

Make sure that the module is properly link-edited into SYS1.NUCLEUS. Then ask the operator to reIPL. For reason code 06 or 03 (in the case of an IPL text error), run ICKDSF to install the proper level of the IPL text on the volume used to IPL.

Source

Initial program load (IPL)