IBM Support

IV72277: SEGMENTATION ERROR WITH VMSTATE 0X00051FFF IN COPY PROPAGATION D URING COMPILATION

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APAR status

  • Closed as program error.

Error description

  • Error Message: Unhandled exceptionType=Segmentation error
    vmState=0x00051fff
    .
    Stack Trace: The gdb stack trace should show the following
    methods on the
    stack:TR_CopyPropagation::isRedefinedBetweenStoreTreeAndTR_CopyP
    ropagation::isCorrectToReplaceTR_CopyPropagation::perform
    .
    N/A
    

Local fix

  • -Xjit:disableGlobalCopyPropagation
    

Problem summary

  • Occasionally, the Copy Propagation optimization of JIT compiler
    could use inconsistent means to identify stores to some
    variables.  This could lead it to skip certain stores under
    unusual circumstances, thereby failing to record the information
    it requires for correct operation.
    

Problem conclusion

  • Copy Propagation was modified to use a consistent and correct
    way to identify all stores to variables throughout a program.
    .
    This APAR will be fixed in the following Java Releases:
       7    SR9       (7.0.9.0)
       7 R1 SR3       (7.1.3.0)
    .
    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

    IV72277

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-04-15

  • Closed date

    2015-04-15

  • Last modified date

    2015-04-21

  • 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

  • R260 PSY

       UP

  • R130 PSY

       UP



Document information

More support for: Runtimes for Java Technology
Just In Time (JIT) Compiler

Software version: 260

Reference #: IV72277

Modified date: 21 April 2015