APAR status
Closed as program error.
Error description
When trying to display AMS policies with dspmqspl command or via MQ Explorer, the command and MQ Explorer hangs and it generates FDCs and dumps as below. AMS process is still works i.e. , encrypts and decrypts the messages based on the specified rules. This happens when there are duplicate DN entries under "Recipient DNs:". +-------------------------------------------------------------+ | Date/Time :- Sun September 02 2018 14:16:50 EasternS tandardTime | UTC Time Offset :- 60 (Eastern Daylight Time) | Probe Id :- XC130031 | Application Name :- MQM | Component :- xehExceptionHandler | Process Name :- amqzlaa0.exe | Major Errorcode :- xecF_E_UNEXPECTED_SYSTEM_RC | Minor Errorcode :- OK | Probe Type :- MSGAMQ6119 | Probe Description :- AMQ6109S: An internal IBM MQ error haso ccurred. | Comment1 :- Access Violation at address0 000000000000004 when | reading+ +-------------------------------------------------------------+ As a result of a Severe Abend Error, a MiniDump has beenw ritten to:AM Q8076.6228.0.dmp An Unhandled Exception detected in process 8076, on thread0 x1854. Type: EXCEPTION_ACCESS_VIOLATION (C0000005). Address: 0033:00007FF960F798C7. The thread could not read from memory address0 x0000000000000004. MQM Function Stack zlaMainThread zlaProcessMessage zlaProcessSPIRequest zlaSPIKernel zsqSPIKernel kpiGeneric kqiPolicyCall smqopPolicyToPCF
Local fix
Update the policy details by removing one of the duplicate DN entries from Signer DN or Recipient DN .
Problem summary
**************************************************************** USERS AFFECTED: Users who attempt to set or display MQ AMS security policies containing duplicate distinguished names (DNs). Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A coding error meant that duplicate DNs were not correctly handled, and caused a memory exception when setting or displaying security policies. This issue applied only to administrative operations on the policies - the operation of other security policies, or of security policies with duplicate DNs that had been defined at earlier releases and migrated, was not affected when protecting or unprotecting message data.
Problem conclusion
The MQ AMS logic of the queue manager has been updated to correctly handle duplicate DN entries in security policies. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v9.1 CD 9.1.2 v9.1 LTS 9.1.0.2 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT26367
Reported component name
IBM MQ BASE M/P
Reported component ID
5724H7261
Reported release
905
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-09-20
Closed date
2018-11-26
Last modified date
2018-11-26
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
IBM MQ BASE M/P
Fixed component ID
5724H7261
Applicable component levels
R905 PSY
UP
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Document Information
Modified date:
20 November 2021