ARC1025A

Explanation
 While DFSMShsm was processing the HLIST command,
an ATTENTION interruption was encountered from a TSO terminal.

System action
 The continued processing of the HLIST command
depends upon the operator response. DFSMShsm processing continues regardless
of the response.

Operator response
 A Y response will terminate DFSMShsm processing
of the HLIST command. Conversely, an N response will allow DFSMShsm processing
of the HLIST command to complete.

Source
 DFSMShsm