D78

Explanation
An error occurred when the system tried to process
an RU or VRU form of the GETMAIN or an RU form of the FREEMAIN macro.
A reason code in the SDWACRC field of the system diagnostic work area
(SDWA) explains the error: Code
Explanation
04
A FREEMAIN request was specified for local system queue area (LSQA)
virtual storage that is associated with a task. However, the virtual
storage area specified is not associated with the task.
08
The system could not satisfy a request for LSQA storage because
there is not enough central storage for the control blocks needed
to support the request.

System action
The system issues message IEA705I. The system
abnormally ends the current task.

System programmer response
See installation procedures to decrease
the fixed central storage requirements of the system.

Programmer response
For reason code X'04', change the
FREEMAIN request to obtain storage owned by the task.  Run the job
step again.
For reason code X'08', resubmit the job.
If the system issues this abend frequently, notify the system programmer.

Source
Virtual storage manager (VSM)