A fix is available
APAR status
Closed as program error.
Error description
WMQ 920 Timing window between disconnect from a queue manager and canceling a queue manager. Can cause ABEND5C6 00E80100. Additional Keywords and Symptoms: The CICS TCB is outside of MQ control. The QMGR jobstep TCB continues with abnormal processing in CSQVATRM. It proceeds to schedule an SRB to CSQVATR4 to issue a CALLRTM TYPE=ABTERM with reason 6C6-00E80100 to terminate the TCB. This problem is a timing window between an application disconnecting from a QMGR and the QMGR being cancelled and results in abend6c6 with reason 00E80100. ABENDS6C6 abend6c6 6C6 rsn00E80100
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM MQ for z/OS Version 9 * * Release 2 Modification 0 and Release 3 * * Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: When cancelling a queue manager, it's * * possible for an address space connected * * to the queue manager to be abnormally * * terminated. * **************************************************************** The code responsible for functional recovery of allied address spaces does not clear a variable used to track active allied TCB's if the queue manager is cancelled, resulting in an abend in the allied address space.
Problem conclusion
The code has been changed to clear this variable as part of the functional recovery that is run when the queue manager is cancelled.
Temporary fix
Comments
APAR Information
APAR number
PH53448
Reported component name
IBM MQ Z/OS V9
Reported component ID
5655MQ900
Reported release
200
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2023-03-22
Closed date
2023-11-06
Last modified date
2023-12-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI94309 UI94310
Modules/Macros
CSQYEATE
Fix information
Fixed component name
IBM MQ Z/OS V9
Fixed component ID
5655MQ900
Applicable component levels
Fix is available
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Document Information
Modified date:
04 December 2023