4MR1I EXTERNAL INTERRUPT I/O ERROR filename SYSxxx
Cause: An I/O error occurred while processing an external interrupt. (Note: CSW and sense
information may be invalid.) This is probably a hardware error.
System Action: Processing continues.
Programmer Action: none.
Operator Action: If the problem recurs, issue the ROD command, execute EREP (see DOS/VS
SADP), and have the output available for problem determination.
Used with Courtesy and Permission of International Business Machines, Inc.