Explanation

An error occurred during JES2 processing. In the dump title, the variable areas are:
ssss
The subsystem identification, normally JES2, obtained from the TIOT
vvvvvvvv
The JES2 version identification
mmmmmmmm
The name of the primary JES2 load module, normally HASJES20
cccc
The system completion code, Shhh (such as S0C1) or JES2 catastrophic error code, $ccc (such as $K01)