IBM Support

IV78173: JAVA SEGMENTATION ERROR WITH VMSTATE=0X0002000F

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APAR status

  • Closed as program error.

Error description

  • Error Message: the JVM crashes with segmentation error
    vmState=0x0002000f
    .
    Stack Trace: markClassesInInlineRanges
    jitWalkStackFrames
    walkStackFrames
    GC_VMThreadStackSlotIterator::scanSlots
    MM_RootScanner::scanOneThread
    MM_RootScanner::scanThreads
    MM_CopyForwardSchemeRootScanner::scanRoots
    MM_CopyForwardScheme::scanRoots
    MM_CopyForwardScheme::workThreadGarbageCollect
    MM_Dispatcher::run
    MM_CopyForwardScheme::copyForwardCollectionSet
    MM_CopyForwardDelegate::performCopyForwardForPartialGC
    .
    

Local fix

  • The problem can be worked around with Java option -Xnoclassgc.
    Note that this might increase the memory usage of Java program.
    

Problem summary

  • The JIT compiler doesn't correctly detect anonymous classes
    unloading and leaves a stale anonymous class address in the
    inlining table which is a data structure describing which
    methods are inlined into the compiled method. As a result, the
    garbage collector crashes on the stale class address while
    walking the Java call stack.
    

Problem conclusion

  • The JIT compiler has been updated to correctly detect the
    unloading of anonymous classes and make sure the class addresses
    the inlining tables are updated.
    .
    This APAR will be fixed in the following Java Releases:
       8    SR2       (8.0.2.0)
    .
    Contact your IBM Product's Service Team for these Service
    Refreshes and Fix Packs.
    For those running stand-alone, information about the available
    Service Refreshes and Fix Packs can be found at:
               https://www.ibm.com/developerworks/java/jdk/
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV78173

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    130

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-10-19

  • Closed date

    2015-10-19

  • Last modified date

    2015-10-19

  • 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

    JIT

  • Fixed component ID

    620700124

Applicable component levels

  • R130 PSY

       UP

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Document Information

Modified date:
19 October 2015