IC68112: Tracing of a .NET thread in a COM+ context is incomplete - 'xtrTurnOffTrace: Turning off trace for this thread' is visible

WebSphere MQ V7.0.1 for i5/OS Fix Pack 7.0.1.3
WebSphere MQ V7.0 Fix Pack 7.0.1.3

APAR status

• Closed as program error.

Error description

• WebSphere MQ successfully captures trace from a .NET thread
  acting under a COM+ context. However, after completing the
  MQCONNX request in the native layer, the trace for that thread
  is disabled. No further trace for that thread is found in the
  trace file even though MQ API requests continue to be issued.
  'xtrTurnOffTrace: Turning off trace for this thread' is printed
  out in the trace after the MQCONN call returns.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Any users of WebSphere MQ running unmanaged .NET applications
  in a COM+ context.
  
  Platforms affected:
  Windows
  
  ****************************************************************
  PROBLEM SUMMARY:
  The problem was caused due to an incorrect reference count
  being used to determine how many times the thread had
  registered against common services. As a result, the common
  services library determined that the thread was no longer
  registered and therefore no longer wanted to trace even though
  the actual reference count should still have been positive.
  

Problem conclusion

• WebSphere MQ was modified to ensure that the reference count
  was incremented and decremented correctly to keep track of
  registrations by application threads to WebSphere MQ common
  services and tracing functionality.
  
  | MDVREGR 7.0.1-WS-MQ-Windows-FP0002        |
  | MDVREGR 7.0.1-WS-MQ-Windows-FP0001        |
  | MDVREGR 7.0-WS-MQ-Windows-RP0001          |
  
  
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
                     v7.0
  Platform           Fix Pack 7.0.1.3
  --------           --------------------
  Windows            U200320
  
  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 WINDOWS V7

• Fixed component ID

  5724H7220

Applicable component levels

• R700 PSY

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