Fixes are available
CICS Transaction Gateway for Multiplatforms V9.2 Fix Pack 1
CICS Transaction Gateway for Multiplatforms V9.1 Fix Pack 3
CICS Transaction Gateway for Desktop Edition V9.1 Fix Pack 3
CICS Transaction Gateway Desktop Edition V8.1 Fix Pack 5
CICS Transaction Gateway for Multiplatforms V8.1 Fix Pack 5
CICS Transaction Gateway Desktop Edition V9.2 (all supported platforms)
CICS Transaction Gateway for Multiplatforms V9.2 (all supported platforms)
CICS Transaction Gateway for Multiplatforms V9.0 Fix Pack 5
CICS Transaction Gateway Desktop Edition V9.0 Fix Pack 5
APAR status
Closed as program error.
Error description
After a SNA network failure the following problems were reported: Signal 11 received in CICS TG Client daemon code "CcDrvClose" after SNA network failure. Signal 11 received in IBM Communications Manager code "vav_copy_vcb" in CICS TG Client daemon process, after SNA network failure.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: All users of CICS TG and SNA connected CICS servers. **************************************************************** PROBLEM SUMMARY: After a SNA communications failure, the CICS TG Client daemon code can free some control blocks that are still required for processing while they are still required, leading to a signal 11. If there is a reference to the freed control block in CICS TG code a signal 11 in CcDrvClose is reported, if the reference is made by IBM Communications Manager code a signal 11 in vav_copy_vcb is reported. The problem can occur either when a SNA connection that is already established is lost, or when a connection is being established and a CCIN timeout occurs. ****************************************************************
Problem conclusion
CICS TG has been changed to retain the required control blocks until the failed sessions have been cleaned up.
Temporary fix
Comments
APAR Information
APAR number
PI68597
Reported component name
CICS TRNS GATE
Reported component ID
5724I8102
Reported release
810
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-09-02
Closed date
2016-12-07
Last modified date
2016-12-07
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
CICS TRNS GATE
Fixed component ID
5724I8102
Applicable component levels
R810 PSY
UP
Document Information
Modified date:
18 October 2021