IZ80937: JAVA JIT CRASH COMPILING CLASS.NEWINSTANCEPROTOTYPE

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: A SIGSEGV/ABEND is received during the JIT
    compilation of a method (e.g.
    java/lang/Class.newInstancePrototype). This issue affects both
    Java 5 and Java 6, but only on z/OS or z/Linux.
    .
    Stack Trace: genInitObjectHeader
    TR_S390TreeEvaluator::VMnewEvaluator
    TR_S390TreeEvaluator::newObjectEvaluator
    TR_CodeGenerator::evaluate
    TR_S390TreeEvaluator::treetopEvaluator
    TR_CodeGenerator::evaluate
    TR_CodeGenerator::doInstructionSelection
    TR_CodeGenerator::generateCodePhase1
    TR_CodeGenerator::generateCode
    TR_Compilation::compile
    TR_CompilationInfo::compile
    TR_CompilationInfo::wrappedCompile
    .
    

Local fix

  • This issue can be worked around by using the
    -Xjit:disableAllocationInlining option, which may incur a slight
    performance degradation in some applications.
    

Problem summary

  • The problem is caused by a rare case in the JIT while inlining
    object allocations.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR8
    5.0.0 SR12
    .
    More conservative checks are added in place to prevent the
    failing scenario.
    .
    To obtain the fix:
    Install build 20100217 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ80937

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-07-26

  • Closed date

    2010-07-26

  • Last modified date

    2010-07-27

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

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

    IZ80938

Fix information

  • Fixed component name

    JIT

  • Fixed component ID

    620700124

Applicable component levels

  • R600 PSN

       UP



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Document information


More support for:

Runtimes for Java Technology
Just In Time (JIT) Compiler

Software version:

6.0

Reference #:

IZ80937

Modified date:

2010-07-27

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