IV29779: HANG PRODUCING JAVACORE THREAD SECTION ON LINUX

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: Hang in javacore, indicated by a dump start
    message (JVMDUMP034I) without a corresponding dump end message
    (JVMDUMP010I).
    The javacore produced is truncated in the thread section, or in
    the preceding memory or lock sections.
    .
    Stack Trace: N/A
    .
    The problem is intermittent.
    

Local fix

  • Disable native stack collection in javacores by using the -Xdump
    option to remove the default request=preempt setting for the
    java dump agent.
    

Problem summary

  • Problem is caused by a deadlock in the native thread stack
    collection.
    

Problem conclusion

  • This defect will be fixed in:
    7.0.0 SR3
    6.0.1 SR4
    .
    The javacore native thread collection support has been updated
    to prevent the deadlock.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV29779

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-10-09

  • Closed date

    2012-10-09

  • Last modified date

    2012-10-09

  • 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

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R260 PSY

       UP



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Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

260

Reference #:

IV29779

Modified date:

2012-10-09

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