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IT20240: MQ client application generates FDC file with probe ID RM597000 RRCE_BAD_PARAMETER

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APAR status

  • Closed as program error.

Error description

  • A failure data capture (FDC) record is observed from an MQ
    client application. The FDC record shows:
    ?+--------------------------------------------------------------
    ---------------+
    |                                       |
    | IBM MQ First Failure Symptom Report                     |
    | =========================================                  |
    |                                       |
    | [...]                                    |
    | Thread      :- 5  ChannelReceive                  |
    | UserApp      :- TRUE                          |
    | Last HQC     :- 0.0.0-0                        |
    | Last HSHMEMB   :- 0.0.0-0                        |
    | Last ObjectName  :-                            |
    | Major Errorcode  :- rrcE_BAD_PARAMETER                   |
    | Minor Errorcode  :- OK                           |
    | Probe Type    :- INCORROUT                       |
    | Probe Severity  :- 2                           |
    | Probe Description :- AMQ6125: An internal IBM MQ error has
    occurred.    |
    | FDCSequenceNumber :- 0                           |
    |                                       |
    +---------------------------------------------------------------
    --------------+
    MQM Function Stack
    cciReceiveThread
    ccxReceiveThreadFn
    cciProcessOne
    cciProcessUserData
    cciProcessAsyncRcv
    rriClientAsyncRcv
    rpqAddMessage
    xcsFFST
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    This issue affects users of MQ client applications which use the
    asynchronous consume functionality to retrieve messages from a
    queue.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    Under certain circumstances the queue manager incorrectly copied
    memory between two overlapping buffers which led to a corruption
    of a message's MQMD data.  The corrupt MQMD was sent to the
    client which detected the corruption and reported an internal
    error.
    

Problem conclusion

  • The MQ code within the queue manager has been updated to prevent
    this invalid memory copy.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v9.0 CD    9.0.4
    v9.0 LTS   9.0.0.2
    
    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 number

    IT20240

  • Reported component name

    IBM MQ BASE M/P

  • Reported component ID

    5724H7261

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-04-18

  • Closed date

    2017-05-31

  • Last modified date

    2017-05-31

  • 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 M/P

  • Fixed component ID

    5724H7261

Applicable component levels

  • R900 PSY

       UP

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Document Information

Modified date:
31 May 2017