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IZ86726: JVM HANG OR CRASH WITH TRUNCATED JAVACORE FILE

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: A javacore will be generated but it will fail to
    complete either during "LOCKS subcomponent dump routine" or
    "THREADS subcomponent dump routine" .
    .
    Stack Trace: JVMDUMP006I Processing dump event "user", detail ""
    - please wait.
       JVMDUMP032I JVM requested Java dump using
    '/opt/IBMWebAS61/profiles/profileServer/heapdumps/javacore.20101
    011.153024.13297.0005.txt' in response to an event
       JVMDUMP013I Processed dump event "user", detail "".
    .
    There may also be a hang or crash in the VM at the time of the
    java core.
    
    Please refer to SOV,175499
    

Local fix

  • Disable java core dumps. -Xdump:java:none
    

Problem summary

  • The problem is caused when the internal state of the JVM changes
    while the JVM is writing a javacore file.
    

Problem conclusion

  • This defect will be fixed in:
    5.0.0 SR13
    6.0.0 SR9
    .
    The javacore code has been updated to increase its resilience.
    .
    To obtain the fix:
    Install build 20101017 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ86726

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-10-19

  • Closed date

    2010-10-25

  • Last modified date

    2011-04-06

  • APAR is sysrouted FROM one or more of the following:

    IZ86722

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R600 PSN

       UP

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Document Information

Modified date:
06 April 2011