SRK wrote:
Question,  looking at at the trace component of an ABEND dump, I see
an SSRV 78 right before the
SVCR of a LOAD.  I know that a SVC 78 is a GETMAIN, and, it would
terminate with an SVCR 78.
But, what is an SSRV, and how is it different than an SVC?

This is a PC or Branch entry to a system service (in this case
getmain/freemain)

See MVS Diagnosis: Tools and Service Aids

http://publibz.boulder.ibm.com/epubs/pdf/iea2v191.pdf

Chapter 8 System Trace.

--
Richard

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