065

Explanation
When processing an SSAFF macro, the system detected
an error.
Register 15 contains a hexadecimal reason code that
explains the error: Code
Explanation
04
The index into the subsystem affinity table (SSAT) is greater
than the number of subsystems currently defined.
08
The caller is not in task control block (TCB) mode.
0C
There is insufficient local system queue area (LSQA) storage to
build the SSAT.
10
The specified TCB is incorrect. It does not include the TCB acronym.
14
The caller is disabled.
1C
The caller's address did not have addressability to the home address
space.
20
The specified TCB is not the currently active TCB or a subtask
of the currently active TCB.
24
The caller issued the SSAFF macro while holding locks.
28
Unexpected error percolated to system recovery.

System action
The system abnormally ends the program that issued
the SSAFF macro.  The system writes a logrec data set error record
and a dump.

System programmer response
Collect all printed output and output
data sets related to the problem. Search problem reporting data bases
for a fix for the problem. If no fix exists, contact the IBM® Support Center.  Provide the logrec data
set record and the dump.

Programmer response
Reason codes 04, 08, 10, 14, 1C, 20, 24 and 28 indicate an error
in the calling program. Fix the problem using the reason code information
and run the job again.
Reason code 0C indicates a system error. Notify the system programmer.

Source
Task management