IT06629: IBM MQ APPLICATION USING THE EXTENDED TRANSACTIONAL CLIENT API ABNORMALLY TERMINATES.

APAR status

• Closed as program error.

Error description

• Applications accessing the Extended Transactional Client API of
  IBM MQ may abnormally terminate when Transactional Processing
  is turned on.
  Trace of the application process reports an access violation:
  !! - ErrorCode :- 00005203 Numeric Insert1 :- 00000000 (0)
  Numeric Insert2 :- 00000004 (4)
   -----{ xcsFFST
  !! - ErrorCode :- 20006119 Numeric Insert1 :- 00000000 (0)
  Numeric Insert2 :- 00000000 (0)
  !! - Access Violation at address 00000000000002F0 when writing
   ------{ xcsRequestThreadMutexSem
  ------} xcsRequestThreadMutexSem (rc=OK)
   ------{ xcsQueryValue
  
  The FDC file reports the following stack:
  
  MQM Function Stack
  THMQDTCClose
  MQRMIClose
  zstXAClose
  xcsFFST
  
  A Windows dump file (dmp) may also be generated
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users using IBM MQ XA client applications.
  
  
  Platforms affected:
  Windows
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A programming error in the MQ client code caused XA connections
  to return incorrect type information when evaluating an internal
  connection structure during closure of an XA connection. This
  incorrect information resulted in the client code attempting to
  access an incorrect offset.
  

Problem conclusion

• The IBM MQ native client libraries have been updated to address
  this incorrect logic during disconnection.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  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 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