279

Explanation
While processing the end of an I/O request, the
system found an error in the I/O parameters.
Register 2 contains
a reason code, as follows: Code
Explanation
04
The system found an incorrect buffer control block (BUFC).
14
The system found an incorrect buffer address while trying to perform
I/O.

System action
The system abnormally ends the current task.

Programmer response
Do the following: Check to see if the program incorrectly modified the I/O parameters.
Correct any errors.
Recompile the job step.
Run the job step again.

Source
Input/output supervisor (IOS)