IC84215: -XLP4K NO LONGER REQUIRED ON AIX AT JAVA SR10

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • MQSI commands fail with the following error message on machines
    which do not have dynamic page size support:
    
    JVMJ9GC032E System configuration does not support option '-Xlp'
    

Local fix

  • none available
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of WebSphere Message Broker V7.0 or higher running on
    AIX.
    
    Platforms affected:
    AIX
    
    ****************************************************************
    PROBLEM SUMMARY:
    There was a defect in the JRE shipped with WebSphere Message
    Broker 7.0.0.3 which caused a memory leak in shared memory
    owned by the JVM. To work around this defect the broker was
    modified so that command line JVMs were created with the -Xlp4K
    option which specifies the use of 4K pages.
    
    It is possible to configure an AIX system with dynamic page
    size support disabled which results in a failure to create
    command JVMs with the error:
    
    JVMJ9GC032E System configuration does not support option '-Xlp'
    

Problem conclusion

  • The shared memory leak was addressed in Java SR10 which is
    shipped with WebSphere Message Broker 7.0.0.4.  WebSphere
    message Broker has therefore been modified to no longer pass
    the -Xlp4K command line option when creating command JVMs.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    V7.0 - Maintenance Level 7.0.0.6
    
    V8.0 - Maintenance Level 8.0.0.5
    
    The latest available maintenance can be obtained from
    'WebSphere Message Broker Recommended Fixes'
    http://www.ibm.com/support/docview.wss?rs=849&uid=swg27006041
    
    If the maintenance level is not yet available, information on
    its planned availability can be found in 'WebSphere Message
    Broker Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC84215

  • Reported component name

    WEB MESSAGE BRO

  • Reported component ID

    5724J0510

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-13

  • Closed date

    2012-08-20

  • Last modified date

    2014-06-24

  • 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

    WEB MESSAGE BRO

  • Fixed component ID

    5724J0510

Applicable component levels

  • R700 PSY

       UP



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Document information


More support for:

WebSphere Message Broker

Software version:

7.0

Reference #:

IC84215

Modified date:

2014-06-24

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