z/OS MVS System Codes
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778

z/OS MVS System Codes
SA38-0665-00

778

Explanation

A system error, uncorrectable machine error, or error that cannot be determined occurred under one of the following conditions:
  • While the system was attempting to satisfy a request made through the STORAGE macro
  • While the system was trying to process an RC, RU, VRC, or VRU form GETMAIN macro
  • While the system was trying to process an RC or RU form FREEMAIN macro
A reason code in the SDWACRC field of the system diagnostic work area (SDWA) explains the error:
Note: Some VSM return codes may be a half-word in length. In these cases, the high-order byte is the module id of the issuing module, and the low-order byte is the return code.
Module ID
Module Name
1
IGGVVSMRT
3
IGVVSM24
4
IGVVSM31
6
IGVGSQA
7
IGVFSQA
A
IGVGLSQA
B
IGVFLSQA
C
IGVGAPVT
E
IGVFSP
44
IGVVSMRF
Code
Explanation
01
While attempting to free storage, the system tried to release central storage backing global or local system queue area (SQA or LSQA) storage. A program page fixed the virtual storage. However, it is a basic property of the system that SQA and LSQA storage is page fixed.
02
While attempting to release an entire LSQA subpool, a service routine was called to free storage described by an allocated element (AE). The service routine returned a return code indicating that the storage is not described by an AE.
04
Status information indicates that the system has obtained a global lock in support of a request to release storage. However, when the system attempted to release the lock, the release request failed.
08
While attempting to obtain storage, a storage management service routine returned an incorrect return code to the virtual storage manager (VSM) interface module.
09
While getting or freeing storage in a local or global system queue area subpool, the service routine that builds double free elements (DFE) tried to place virtual storage on the DFE queue, but could not do so because the storage was described by another DFE already on the queue.
0C
While attempting to free storage, a storage management service routine returned an incorrect return code to the virtual storage manager (VSM) interface module.
10
While in recovery processing, the system detected a condition that is normally considered a user error. However, it is not likely that the error is a user error because recovery processing is in control.
14
VSM failed to backout the acquisition of a new address queue anchor table (AQAT) stack. In this case, the system issues abend X'778' only to record the error. The system continues processing upon retry from VSM recovery.
20
The STORAGE service routine has failed unexpectedly. The failure is probably not a user error.

System action

The system writes a logrec data set error record. The system continues processing.

System programmer response

Search problem reporting data bases for a fix for the problem. If no fix exists, contact the IBM® Support Center.

Programmer response

Run the job again. If the error recurs, contact the system programmer.

Source

Virtual storage manager (VSM)

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