IC82908: WebSphere MQ V7.1: Queue manager ends unexpectedly. FFST probe XC130031 in kqiTickleEarly. zrcC_E_INVALID_HANDLE may be seen.

Fix Pack 7.1.0.2 for WebSphere MQ V7.1

APAR status

• Closed as program error.

Error description

• The queue manager ends unexpectedly producing an FDC file with
  the following entries (extracts only):
  
  PIDS              :- 5724H7220
  LVLS              :- 7.1.0.0
  Product Long Name :- WebSphere MQ for Windows
  Probe Id          :- XC130031
  Application Name  :- MQM
  Component         :- xehExceptionHandler
  SCCS Info         :- lib/cs/pc/winnt/amqxerrn.c, 1.44
  Line Number       :- 761
  Build Date        :- Oct 19 2011
  CMVC level        :- p000-L111019
  Build Type        :- IKAP - (Production)
  Process Name      :- C:\Program Files (x86)\IBM\WebSphere
  MQ\bin\amqzlaa0.exe
  Major Errorcode   :- xecF_E_UNEXPECTED_SYSTEM_RC
  Minor Errorcode   :- OK
  Probe Type        :- MSGAMQ6119
  Probe Severity    :- 2
  Probe Description :- AMQ6109: An internal WebSphere MQ error has
  occurred.
  FDCSequenceNumber :- 0
  Comment1          :- Access Violation at address xxxxxxxx when
  writing
  
  ---> Stack dump for the faulting thread (xxxxx) <---
  ...
  As a result of a Severe Abend Error, a MiniDump has been written
  to: AMQxxxx.xxxx.0.dmp
  
  An Unhandled Exception detected in process xxxx, on thread
  xxxxx.
  Type: EXCEPTION_ACCESS_VIOLATION (C0000005).
  Address: xxxx:xxxxxxxx.
  The thread could not write to memory address xxxxxxxxxx.
  
  MQM Function Stack
  zlaMainThread
  zlaProcessMessage
  zlaProcessMQIRequest
  zlaMQPUT
  zsqMQPUT
  kpiMQPUT
  kqiPutIt
  kqiPutMsgSegments
  kqiTickleEarly
  xcsFFST
  
  After the above FDC entry occurs, the following entry appears:
  
  Probe Id          :- ZC004040
  Component         :- zcpCreateMessage
  Major Errorcode   :- zrcC_E_INVALID_HANDLE
  

Local fix

• An interim fix is available from IBM Support and internal
  reference PRB item 5347
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Customers putting messages greater than 1MB in size where an
  asynchronous consumer will receive the message (including client
  applications getting messages from a channel where the SHARECNV
  attribute is greater than zero).
  
  Platforms affected:
  All Distributed (iSeries, all Unix and Windows)
  ****************************************************************
  PROBLEM SUMMARY:
  When the queue manager tries to deliver a message larger than
  1MB directly to an asynchronous consumer a shared memory
  overwrite occurs with the second large message causing an access
  violation in the amqzlaa0 process. Depending on the size of the
  message, the overwrite may cause subsequent failures in the
  queue manager causing it to end abruptly.
  

Problem conclusion

• The queue manager was changed not to overwrite the shared memory
  regardless of the size of message being delivered directly to
  the asynchronous consumer.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
                     v7.1
  Platform           Fix Pack 7.1.0.2
  --------           --------------------
  Windows            7.1.0.2
  AIX                7.1.0.2
  HP-UX (Itanium)    7.1.0.2
  Solaris (SPARC)    7.1.0.2
  Solaris (x86-64)   7.1.0.2
  iSeries            7.1.0.2
  Linux (x86)        7.1.0.2
  Linux (x86-64)     7.1.0.2
  Linux (zSeries)    7.1.0.2
  Linux (Power)      7.1.0.2
  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 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

• R710 PSY

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