The remaining functions of SVC dump processing should be operational.
None.
For REASON=04, an error occurred that involved IEAVTDSV processing. For problem determination purposes, check the system logs, and look for LOGREC records, and possible SVC dumps, around the time of the message. If the error was not due to SVC dump processing, full functioning is restored by recycling the DUMPSRV address space.
SVC dump
IEAVTDSV
2, 10
3