IZ78073: INCORRECT OUTPUT FROM APPLICATION

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: Incorrect application behavior
    .
    Stack Trace: N/A
    .
    

Local fix

  • -Xjit:disableGlobalVP,disableLocalVP. Please note however, that
    using these options may result in decreased performance of the
    application.
    

Problem summary

  • The problem is due to the way the value propagation optimization
    in the JIT compiler generates information at control flow merge
    points inside loops. The bug causes the optimizer to miss
    certain definitions of a variable and the optimizer incorrectly
    removes branches based on the wrong analysis.
    

Problem conclusion

  • This defect will be fixed in:
    5.0.0 SR13
    6.0.0 SR9
    .
    The JIT optimizer has been updated to prevent the problem.
    .
    To obtain the fix:
    Install build 20100629 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ78073

  • Reported component name

    JAVA 5 JIT

  • Reported component ID

    620500124

  • Reported release

    500

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-06-25

  • Closed date

    2010-08-12

  • Last modified date

    2010-08-12

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

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

    IZ78083

Fix information

  • Fixed component name

    JAVA 5 JIT

  • Fixed component ID

    620500124

Applicable component levels

  • R500 PSN

       UP



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Document information


More support for:

Runtimes for Java Technology
Just In Time (JIT) Compiler

Software version:

5.0

Reference #:

IZ78073

Modified date:

2010-08-12

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