IT31302: Unable to delete CHILD / PARENT from PUBSUB hierarchy when the Queue Manager CCSID is 1208

APAR status

• Closed as program error.

Error description

• When the queue manager CCSID is set to 1208 (utf-8), the
  customer is unable to delete a child or parent subscription in
  pubsub hierarchy.
  After the command "ALTER QMGR PARENT('')" to delete the
  hierarchy, several FDC's will be produced indicating an access
  violation has occurred with the following characteristics
  (dependent upon the queue manager the command is executed on and
  the MQ version):
  
  On MQ version 8.0.0.11 the following failure data capture (FDC)
  records are generated:
   XC130031 xehExceptionHandler/fmiDisconnectChildOrParent
  xecF_E_UNEXPECTED_SYSTEM_RC OK
   XC130031 xehExceptionHandler/fmiDisconnectChildOrParent
  xecF_E_UNEXPECTED_SYSTEM_RC OK
   ZX005022 zxcProcessChildren
  lrcW_S_FAST_PATH_APP_DEAD   OK
   PU035020 fpxCleanUp
  frcE_UNEXPECTED_ERROR       OK
   PU035020 fpxCleanUp
  frcE_UNEXPECTED_ERROR       OK
  
  The 8.0.0.11 call stack from the XC130031 FDC appears as
  follows:
   amqzai2!fmiDisconnectChildOrParent+0x542<NLN:487>
   amqzai2!fmiProcessInternalQ+0x4fd<NLN:487>
   amqzai2!fpiTaskReply+0x47c<NLN:487>
   amqxcs2!ThreadMain+0x2c9<NLN:487>
   MSVCR110!beginthreadex+0x107<NLN:487>
   MSVCR110!endthreadex+0x192<NLN:487>
   kernel32!BaseThreadInitThunk+0xd<NLN:487>
   ntdll!RtlUserThreadStart+0x1d<NLN:487>
  
  
  On MQ version 9.1.0.1 the following FDC's appear:
   XC130031 xehExceptionHandler/fpxSyncPoint
  xecF_E_UNEXPECTED_SYSTEM_RC OK
   XC130031 xehExceptionHandler/fpxSyncPoint
  xecF_E_UNEXPECTED_SYSTEM_RC OK
   ZX005022 zxcProcessChildren   lrcW_S_FAST_PATH_APP_DEAD   OK
   PU035020 fpxCleanUp           frcE_UNEXPECTED_ERROR       OK
   PU035020 fpxCleanUp           frcE_UNEXPECTED_ERROR       OK
  
  
  The 9.1.0.1 call stack from the XC130031 FDC appears as below:
   amqzai2!fpxSyncPointEx+0x93<NLN:487>
   amqzai2!fmiRemoveParent+0xf6<NLN:487>
   amqzai2!fmiAlterParent+0x27b<NLN:487>
   amqzai2!fmiProcessInternalQ+0x3e7<NLN:487>
   amqzai2!fpiTaskReply+0x46f<NLN:487>
   amqxcs2!ThreadMain+0x2a8<NLN:487>
  
  Windows MiniDump files will also be produced.
  
  It is also possible that only the Windows MiniDump file appears
  in the error folder and nothing else is logged. In this case
  using WinDbg to analyse the dmp file (from MQ version  9.1.0.1)
  will indicate a stack text similar to the following:
  
   amqzai2!fpxSyncPointEx+0x93
   amqzai2!fmiRemoveParent+0xf6
   amqzai2!fmiAlterParent+0x27b
   amqzai2!fmiProcessInternalQ+0x3e7
   amqzai2!fpiTaskReply+0x46f
   amqxcs2!ThreadMain+0x2a8
   ucrtbase!thread_start<unsigned int (__cdecl*)(void *
  __ptr64)>+0x3e
   kernel32!BaseThreadInitThunk+0x14
   ntdll!RtlUserThreadStart+0x21
  

Local fix

• Change the queue manager CSID to anything other than 1208 and
  the "ALTER QMGR PARENT('')" command will succeed.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of MQ PUBSUB that need to delete PARENT / CHILD hierarchy
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  When the Queue manager CCSID is set to 1208, a coding error
  existed that caused the conversion of the subscription name to
  fail with an access violation whilst handling the deletion of
  PARENT / CHILD hierarchy.
  

Problem conclusion

• The coding error has been corrected.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.15
  v9.0 LTS   9.0.0.11
  v9.1 CD    TBC.
  v9.1 LTS   9.1.0.5
  
  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

  IBM MQ BASE MP

• Fixed component ID

  5724H7251

Applicable component levels