22D

Explanation
 A program requested an overlay. When trying to answer the request, the overlay
supervisor found an incorrect address in the overlay segment table or the entry table. The address
points to a location outside the boundaries of the virtual storage assigned to the job step.

The overlay segment table is used by the overlay supervisor; it resides in the load module and is
in the same storage protection key as the application program.
 Note: Overlay programs run only
in 24-bit addressing mode, not in 31-bit addressing mode.

System action
 The system abnormally ends the program that requested the overlay. The system
writes an ABEND dump, if a dump DD statement is provided.

Programmer response
 Check the program for errors that caused the overlay segment table or the
entry table to be incorrectly modified. Correct the errors; then assemble, link edit, and run the
program again.

Source
 Overlay supervisor