IBM Support

IC85594: WebSphere MQ V7.0.1 FOR WINDOWS JAVA APPLICATION GENERATES FDC WITH PROBE JO568001 AND AN ACCESS VIOLATION IN NTDLL.DLL

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • An application using the WebSphere MQ v7.0.1.0 classes for
    Java makes a connection to a WebSphere MQ queue manager
    using the CLIENT transport. While trying to perform an
    MQGET, the WebSphere MQ classes for Java created an FDC:
    .
      Probe Id       :- JO568001
      Component      :- RemoteFAP.jmqiGetMessage(Hconn,Hobj,
                        MQMD
      Process Name   :- C:\Program Files\IBM\Java142\jre\bin\
                        java.exe
      Addressing mode:- 32-bit
      UserApp        :- TRUE
      Major Errorcode:- MQRC_Q_MGR_STOPPING
      Comment1       :- com.ibm.mq.jmqi.JmqiException[CC=2;
                        RC=2162]
    .
    When the FDC is generated, an access violation occurrs in
    the Windows system module:  C:\Windows\system32\ntdll.dll
    .
    The access violation caused the Java Runtime Environment
    that the application was running in to generate a Javacore.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of WebSphere MQ v7.0.1 Java applications
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows) +Java
    ****************************************************************
    PROBLEM SUMMARY:
    WebSphere MQ Java layer passes on a request to the queue
    manager to write an FFST. In order to write an FFST,
    WebSphere MQ allocates a buffer for java stack string. This
    buffer allocation was incorrect thus causing a heap corruption.
    

Problem conclusion

  • WebSphere MQ v7.0.1 code has been modified such that the buffer
    allocation for java stack string is done correctly while
    writing FFST.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.10
    --------           --------------------
    Windows            U200352
    AIX                U853055
    HP-UX (PA-RISC)    U853082
    HP-UX (Itanium)    U853087
    Solaris (SPARC)    U853083
    Solaris (x86-64)   U853089
    iSeries            7.0.1.10
    Linux (x86)        U853084
    Linux (x86-64)     U853088
    Linux (zSeries)    U853085
    Linux (Power)      U853086
    
    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

    IC85594

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    701

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-07-30

  • Closed date

    2012-10-15

  • Last modified date

    2012-10-15

  • 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

  • R701 PSY

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSCPQ63","label":"APAR \/ Maintenance"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0.1","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
15 October 2012