IBM Support

IV22999: CRASH IN MERGEDEFCONTRAINTS DURING COMPILATION

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: SIGSEGV/GPF during the compilation of a method.
    .
    Stack Trace: The top of the C++ stack should have the following
    function:
    TR_ValuePropagation::mergeDefContraints
    The rest of the stack is unwalkable.
    .
    

Local fix

  • To workaround this issue, the method that was being compiled at
    the time of the crash should be excluded from compilation.
    This can be done using the following command line option:
    -Xjit:exclude={*<method signature>*}
    

Problem summary

  • Part of the mergeDefContraint function incorrectly attempted to
    reference a NULL pointer that is part of one of the internal
    data structures used to perform this optimization.
    

Problem conclusion

  • This defect will be fixed in:
    5.0.0 SR14
    6.0.0 SR12
    7.0.0 SR3
    .
    The function has been altered so that the the NULL pointer can
    no longer be dereferneced.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV22999

  • 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

    2012-06-13

  • Closed date

    2012-07-17

  • Last modified date

    2012-07-17

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

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

    IV23000

Fix information

  • Fixed component name

    JAVA 5 JIT

  • Fixed component ID

    620500124

Applicable component levels

  • R500 PSY

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSC9HBA","label":"Just In Time (JIT) Compiler"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.0","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
17 July 2012