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IV35416: A JIT COMPILER OPTIMIZATION INCORRECTLY REMOVED A YIELD POINT, T HEREBY CAUSING A THREAD TO RUN FOREVER WITHOUT ALLOWING OTHER TH

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APAR status

  • Closed as program error.

Error description

  • Error Message: A hang in long running programs. Several
    javacores taken in a span of 10 mins or so show the same thread
    in a running state.
    .
    Stack Trace: N/A
    .
    

Local fix

  • specify the following options on a java cmdline
    "-Xjit:disableLoopCanonicalization,disableRedundantAsyncCheckRem
    oval
    

Problem summary

  • A thread might not yield when needed
    

Problem conclusion

  • This defect will be fixed in:
    7.0.0 SR4
    .
    the jit was fixed to prevent such yields from being removed
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV35416

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-01-16

  • Closed date

    2013-01-16

  • Last modified date

    2013-01-16

  • 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

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Document Information

Modified date:
16 January 2013