Customer suffers mutliple times per week an Abend S422 in the PAGENT task and they opened a pmr at the first level support of IBM. The IBM support has analyzed the provided docs and revised the dump in detail. SYSTEM COMPLETION CODE=01F REASON CODE=00000004 TIME=01.00.06 SEQ=02881 CPU=0080 ASID=008B
The problem appears to have been a ST instead of STG instruction when building the 64-bit parameter list in HPSIHFP. The ABEND only occurs when the BPX4STA call fails (in this case due to the file not existing. The problem is fixed in SSM V8.3.2 as patch number: SSM83227.
This problem started after our programmers deployed a large number of PL/1 enterprise compiled load modules. SSM works fine on other libraries. It is only abending on this particular set of libraries.