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IV12188: CRASH DURING JIT COMPILATION

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: Unhandled exception
    Type=Segmentation error vmState=0x00000000
    J9Generic_Signal_Number=00000004 Signal_Number=0000000b
    Error_Value=00000000
    .
    Stack Trace:
    .
    

Local fix

  • This problem was exposed by inlining, so -Xjit:disableInlining
    would work around it, with a significant performance penalty.
    

Problem summary

  • More aggressive inlining exposed an ancient bug in how the JIT
    deals with virtual guards.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR10
    .
    The JIT's virtual guard handling code was fixed.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV12188

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-12-17

  • Closed date

    2011-12-17

  • Last modified date

    2011-12-17

  • 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

  • R600 PSY

       UP

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Document Information

Modified date:
17 December 2011