APAR status
Closed as program error.
Error description
The Microsoft transaction manager may crash with an access violation when running with MQ. In consequence an FDC file and minidump are generated with information similar to the following: Probe Id :- XC130031 Component :- xehExceptionHandler Process Name :- C:\Windows\System32\msdtc.exe Major Errorcode :- xecF_E_UNEXPECTED_SYSTEM_RC Probe Description :- AMQ6109: An internal WebSphere MQ error has occurred. Comment1 :- Access Violation at address 00007FFA76832B60 when reading ---------------------------------------------------------------- MQM Function Stack zstXAOpen zswSaveRmid xcsFFST
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users running MQ application processes such that MQ libraries may be reloaded by Windows. The problem is most commonly seen where an application is using Microsoft distributed transactions and the MSDTC process unloads and later reloads the module that gives addressability to the MQ API. Platforms affected: Windows **************************************************************** PROBLEM DESCRIPTION: On a reload of MQ libraries the address of the MQ entry point table for the installation to be used were not updated and subsequent MQ calls caused the crash if the addresses had changed when the libraries were reloaded.
Problem conclusion
The MQ Windows libraries have been modified to correctly update the MQ entry point table address if it changes when the libraries are reloaded. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.1 7.1.0.8 v7.5 7.5.0.6 v8.0 8.0.0.4 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
IT06789
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7251
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-01-28
Closed date
2015-09-30
Last modified date
2015-09-30
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
WMQ BASE MULTIP
Fixed component ID
5724H7251
Applicable component levels
R800 PSY
UP
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Document Information
Modified date:
30 September 2015