An abend occurred while the asynchronous MSCH (modify subchannel)
completion module (ERBMFIDX) was processing. ERBMFIDX is scheduled
as an SRB routine upon completion of an asynchronous MSCH request.
The internal FRR recovery routine ERBMFIDF requests an SVC dump. The
areas dumped are SQA, LSQA, TRT, PSA, and SUMDUMP.
Associated problem data
The RMF control block STGST
(pointed to by field CVTMFCTL in the CVT) and the trace table are
helpful in determining the cause of the error. The failing CSECT name
and the error condition can be determined from RTM2WA and SDWA.