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

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 8.0.0.3
  
  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 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