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PI89346: 8.5.5.10 CONTROL REGIONN COM.IBM.WS.XCT.IMPL.XCTSTACK OOM

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APAR status

  • Closed as program error.

Error description

  • WebSphere Application Server traditional Control Region abends
    with java.lang.OutOfMemoryError
    
    Memory Analysis Tool shows:
    
    Leak Suspect 1:
    The thread java.lang.Thread @ aaaaaaaa
    
    The memory is accumulated in one instance of
    "java.lang.Object[]" loaded
    by "com.ibm.oti.vm.BootstrapClassLoader @
    
    heap space used is retained by instances
    of com.ibm.ws.xct.impl.XctStack.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of BM WebSphere Application Server    *
    *                  for                                         *
    *                  z/OS with XCT enabled                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: java.lang.OutOfMemoryError in z/OS      *
    *                      control                                 *
    *                      region with XCT enabled                 *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    If Cross Component Tracing (XCT) is enabled on z/OS, the HTTP
    channel may leak XctStack objects causing an OOM.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PI89346

  • Reported component name

    WEBSPHERE FOR Z

  • Reported component ID

    5655I3500

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-10-25

  • Closed date

    2018-01-30

  • Last modified date

    2018-01-30

  • 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

    WEBSPHERE FOR Z

  • Fixed component ID

    5655I3500

Applicable component levels

  • R850 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
19 October 2021