01C

Explanation
Supervisor control experienced a recursive abnormal end in its super functional
recovery routine (FRR). This is probably a software error.
The right-most four bytes of the
program status word (PSW) have the following format: x0rrrwww
 where: x
Irrelevant information.
rrr
A hexadecimal reason code indicating the reason for the failure.
www
The wait state code.

 The reason code (rrr) is one of the following: 000
Supervisor control experienced a double recursive abend.
004
Supervisor control experienced a recursive abend during list transition processing.
008
System completion code AC7, reason code 000B0000, occurred recursively. This can happen as a
result of a shortage of virtual storage above 16 megabytes.

System action
The system may issue message IEA967W. The system writes a logrec error
record.

Operator response
If the system programmer requests a stand-alone dump, obtain one. ReIPL the
system.

System programmer response
Search problem reporting databases for a fix for the problem. If no
fix exists, ask the operator to obtain a stand-alone dump. Contact the IBM® Support Center. Provide the stand-alone dump and, if available, the logrec
error record.

Source
Supervisor control