03C

Explanation
A page, a segment, or an ASTE fault occurred. RSM
detected one of the following conditions.
Register 15 contains
a hexadecimal reason code.  In the reason code, the bytes designated x contain
diagnostic data that may be requested by IBM®. Code
Explanation
xxxx08xx
A program disabled for interrupts held the RSM lock, or a higher
lock, when a fault occurred.
xxxx0Dxx
No central storage frames were available to resolve a page fault
when the unit of work was running disabled for interrupts.

System action
The system issues an abend to the current task.

System programmer response
Search problem reporting data bases
for a fix for the problem.  If no fix exists, contact the IBM Support Center.

Programmer response
For reason code X'xxxx0Dxx', run
the job again. If the error recurs, contact the system programmer.

Source
Real storage manager (RSM)