SE55181: WMQ V7.1: AMQ9504 GENERATED FOR RECEIVER(RCVR) CHANNEL ON STARTUP FROM CORRESPONDING Z/OS SENDER AFTER IBMI UPGRADE

APAR status

• Closed as program error.

Error description

• Configuration:
  z/OS (Sender) WMQ 7.0.1 -------> IBMi (Receiver) WMQ 7.1.0.2
  .
  Enduser has upgraded IBMi from WMQ V7.0.1 to V7.1.0.2 and now
  sender/receiver channel pair between z/OS (WMQ 7.0.1) and IBMi
  (WMQ V7.1.0.2) fail to start.  On the IBMi side message AMQ9504
  (A protocol error was detected for channel) is generated, along
  with the following FDC:
  .
  Probe Id          :- RM680012
  Component         :- rriBadDataReceived
  Job Name          :- 599320/QMQM/AMQRMPPA (AMQRMPPA)
  Submitted By      :- 599226/QMQM/RUNMQLSR
  Major Errorcode   :- rrcE_PROTOCOL_ERROR
  Probe Type        :- MSGAMQ9504
  Probe Description :- AMQ9504: A protocol error was detected
                       for channel
  FDCSequenceNumber :- 459
  Arith1            :- 12 0x'c'
  .
  IBM i Function Stack
     LE_Create_Thread2__FP12crtth_parm_t
     pthread_create_part2
     ThreadMain
     cciResponderThread
     ccxResponder
     rrxResponder
     rriReceiveData
     rriBadDataReceived
     xcsFFSTFnEx
     PrepareDumpAreas
     xfdDump400ThreadStack
     .
  MQM Function Stack
     ccxResponder
     rrxResponder
     rriReceiveData
     rriBadDataReceived
     xcsFFST
  .
  -} rriConvertMsgHdrs rc=MQRC_DH_ERROR
  -{ rriBadDataReceived
  --{ rrxError
  --} rrxError rc=rrcE_PROTOCOL_ERROR
  --{ xcsBuildDumpPtr
  ---{ xcsGetMemFn
  ---} xcsGetMemFn rc=OK
  --} xcsBuildDumpPtr rc=OK
  --{ xcsFFST
  .
  On the z/OS side the following message was logged in the CHIN
  log:
  +CSQX202E CSQ1 CSQXRCTL Connection or remote listener
  unavailable,
   channel <channel name>, connection (xxx.xx.x.xxx) TRPTYPE=TCP
   RC=00000467 (ETIMEDOUT) reason=00000000
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  WMQ users utilizing Distribution lists connecting to V7.1.0.x
  
  Platforms affected:
  All Distributed (iSeries, all Unix and Windows)
  ****************************************************************
  PROBLEM SUMMARY:
  WMQ code was incorrectly assuming that PutMsgRecFields in the
  MQDH header was non-zero which resulted in an invalid
  MQRC_DH_ERROR. The PutMsgRecFields field is an optional field
  with an initial value of zero.
  

Problem conclusion

• WMQ code has been modified to appropriately account for a zero
  PutMsgRecFields field in the MQDH header.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
                     v7.1
  Platform           Fix Pack 7.1.0.4
  --------           --------------------
  Windows            7.1.0.4
  AIX                7.1.0.4
  HP-UX (Itanium)    7.1.0.4
  Solaris (SPARC)    7.1.0.4
  Solaris (x86-64)   7.1.0.4
  iSeries            7.1.0.4
  Linux (x86)        7.1.0.4
  Linux (x86-64)     7.1.0.4
  Linux (zSeries)    7.1.0.4
  Linux (Power)      7.1.0.4
  
  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:

Modules/Macros

• RCHMGR
  

Fix information

• Fixed component name

  WMQ ISERIES V7

• Fixed component ID

  5724H7226

Applicable component levels

• R710 PSY

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