IV11263: CRASH IN GC -> CLEANUPCLASSLOADERSSTART()

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: n/a
    .
    Stack Trace: MM_ClassLoaderManager::cleanUpClassLoadersStart
    MM_ParallelGlobalGC::unloadDeadClassLoaders
    MM_ParallelGlobalGC::masterThreadGarbageCollect
    MM_ConcurrentGC::internalGarbageCollect
    ...
    .
    Classfile modification leads to crash in GC.
    

Local fix

  • Short term solution is to disable the transformer/agent inducing
    class redefinition.
    

Problem summary

  • The GC crashed on reading a null forward pointer of a class that
    was redefined.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.1 SR1 FP1
    7.0.0 SR1
    .
    The JVM has been updated to populate the forward pointer
    appropriately when a class has been redefined.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV11263

  • 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

    2011-11-30

  • Closed date

    2011-12-06

  • Last modified date

    2012-06-06

  • 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 #:

IV11263

Modified date:

2012-06-06

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