A fix is available
APAR status
Closed as program error.
Error description
A queue manager with many XAResourceManager stanzas reports XC130004 FDC and fails to start. The XC130004 FDC reports a SIGSEGV and this function stack: MQM Function Stack ExecCtrlrMain zxcCreateECResources zutReadQMIniFile xcsBrowseIniCallback zutQMIniCallback tmxXAResourceManagerCB xcsFFST
Local fix
Problem summary
**************************************************************** USERS AFFECTED: This problem has only been reported from a queue manager with an extremely large number of XAResourceManager stanzas (over 80 stanzas). Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: While parsing and validating the contents of the XAResourceManager stanzas in the qm.ini file, a pointer was used that was not certain to point to the right piece of memory.
Problem conclusion
The programming error has been found and corrected. A note is added to the IBM MQ Knowledge Center mentioning that there is a hard limit of 255 on the allowed number of XAResourceManager stanzas. However, this is not a realistic scenario to attempt, and we do not recommend trying to configure a large number of stanzas. Only a small number of stanzas is expected. Only a small number of stanzas will give reasonable transaction performance. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.1 7.1.0.7 v7.5 7.5.0.5 v8.0 8.0.0.2 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
IV67181
Reported component name
WMQ LIN X86-64
Reported component ID
5724H7230
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-11-21
Closed date
2014-11-27
Last modified date
2014-11-27
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 LIN X86-64
Fixed component ID
5724H7230
Applicable component levels
R710 PSY
UP
[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFKSJ","label":"WebSphere MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.1"}]
Document Information
Modified date:
03 October 2021