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IV67304: SIGFPE OR ABEND DUE TO DIVISION BY ZERO IN JAVA JIT COMPILER

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APAR status

  • Closed as program error.

Error description

  • Error Message: A SIGFPE or an ABEND is raised in the Java
    Just-In-Time compiler module (libj9jit) due to an attempt to
    divide by zero.
    .
    Stack Trace:
    TR_BranchProfileInfoManager::getBranchCounters
    TR_CFG::getBranchCounters
    TR_CFG::getInterpreterProfilerBranchCountersOnDoubleton
    TR_CFG::setBlockFrequenciesBasedOnInterpreterProfiler
    TR_CFG::propagateFrequencyInfoFromExternalProfiler
    TR_IProfiler::setBlockAndEdgeFrequencies
    TR_CFG::setFrequencies
    TR_Inliner::perform
    TR_OptimizerImpl::performOptimization
    TR_OptimizerImpl::optimize
    TR_Compilation::performOptimizations
    TR_Compilation::compile
    .
    

Local fix

  • This issue can be avoided by preventing the compilation of the
    failing method with the -Xjit:exclude={...} option.
    

Problem summary

  • The problem is caused by the JIT compiler incorrectly attempting
    to compute the hotness ratio of code paths exiting a cold
    branch.
    

Problem conclusion

  • The JIT compiler has been updated to prevent the division by
    zero.
    .
    This APAR will be fixed in the following Java Releases:
       6 R1 SR8 FP3   (6.1.8.3)
       7    SR8 FP10  (7.0.8.10)
       7 R1 SR2 FP10  (7.1.2.10)
    .
    Contact your IBM Product's Service Team for these Service
    Refreshes and Fix Packs.
    For those running stand-alone, information about the Service
    Refreshes and Fix Packs can be found at:
               https://www.ibm.com/developerworks/java/jdk/
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV67304

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-11-26

  • Closed date

    2014-11-26

  • Last modified date

    2014-12-02

  • 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



Document information

More support for: Runtimes for Java Technology
Just In Time (JIT) Compiler

Software version: 260

Reference #: IV67304

Modified date: 02 December 2014