APAR status
Closed as program error.
Error description
When an MQ client application connected to a channel which was configured with send and receive channel exits the client application intermittently reported a MQRC 2009 connection broken error and the following FDC was generated on the MQ queue manager: Probe Id :- XC130003 Component :- xehExceptionHandler Program Name :- amqrmppa Major Errorcode :- STOP Probe Type :- HALT6109 FDCSequenceNumber :- 0 Arith1 :- 11 (0xb) Comment1 :- SIGSEGV: address not mapped(0x10) MQM Function Stack cciResponderThread ccxResponder rrxResponder ccxReceiveThreadFn cciProcessOne cciProcessUserData cciProcessAsyncRcv rriServerAsyncRcv rriMQIServerReceive rriMQIServerCall xcsFFST
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Those with applications that consume messages asynchronously over SVRCONN channels which are defined with receive exits and SHARECNV(1). Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A client application executed an MQI operation from within a callback function and the MQ server code attempted to invoke a receive exit, but a programming error caused the queue manager to incorrectly free a memory block which led to a SIGSEGV. This caused the channel to terminate abnormally and the client application received return code 2009 (MQRC_CONNECTION_BROKEN).
Problem conclusion
The programming error has been fixed. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v9.3 LTS 9.3.0.20 v9.4 LTS 9.4.0.5 v9.x CD 9.4.1 The latest available maintenance can be obtained from 'IBM MQ Recommended Fixes' https://www.ibm.com/support/pages/recommended-fixes-ibm-mq If the maintenance level is not yet available information on its planned availability can be found in 'IBM MQ Planned Maintenance Release Dates' https://ibm.biz/mqplannedmaintenance ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT45453
Reported component name
MQ BASE V9.3
Reported component ID
5724H7291
Reported release
930
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2024-02-09
Closed date
2024-06-11
Last modified date
2024-06-11
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
MQ BASE V9.3
Fixed component ID
5724H7291
Applicable component levels
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.3","Line of Business":{"code":"LOB67","label":"IT Automation \u0026 App Modernization"}}]
Document Information
Modified date:
11 June 2024