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IV52370: INVALID INSTRUCTIONS WRITTEN INTO JIT CODE CACHE

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APAR status

  • Closed as program error.

Error description

  • Error Message: A SIGSEGV/GPF or illegal instruction exception is
    raised in a JIT compiled method when a Java program is being run
    with an agent that performs bytecode instrumentation.
    .
    Stack Trace: N/A
    .
    

Local fix

  • This issue can be worked around by setting the following
    environment variable:
    export TR_DisableCCR=1
    

Problem summary

  • The problem is caused by stale metadata that is not cleaned up
    properly when a class is unloaded by the JVM.  This stale
    metadata leads to subsequent corruption of the JIT code cache in
    an unrelated method.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.1 SR8
    7.0.0 SR7
    6.0.0 SR16
    .
    The JVM has been updated to properly clean up the stale
    metadata.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV52370

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-11-20

  • Closed date

    2013-11-20

  • Last modified date

    2013-11-20

  • 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

  • R600 PSY

       UP

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Document Information

Modified date:
20 November 2013