During an IPL, the CAIRIM task received a CCSR010E message indicating a S878 failure. The task eventually abended with a SA78 Reason Code 00000004

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Issue/Introduction

A CAIRIM S878 can precede a task abend with COMPLETION CODE SA78 REASON CODE 00000004.

Environment

z/OS

Cause

The specified REGION size of 524K for CAS9/CAiRIM execution was too small.  The storage request from (IBM) OPEN processing resulted in an operating system getmain failure.

Resolution

 Increase the REGION size on the EXEC Card of the CAS9 proc.  Although the default REGION as distributed is 2M, specifying REGION=0M resolved this problem. 

Additional Information

https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.ieae100/regsize.htm