IBM Support

IV91276: JIT COMPILER CRASHES DURING COMPILATION

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APAR status

  • Closed as program error.

Error description

  • Error Message: Unhandled exception
    Type=Segmentation error vmState=0x000560ff
    J9Generic_Signal_Number=00000004 Signal_Number=0000000b
    Error_Value=0000c350 Signal_Code=00000001
    .
    Stack Trace:
    .
    

Local fix

  • -Xjit:disablePrefetchInsertion
    

Problem summary

  • When the JIT compiler is checking to see if multiple array
    accesses in a natural loop refer to the same array, it was not
    accounting for a scenario when the intermediate representation
    data structures differ in some fields and as a result a
    segmentation fault can occur when accessing one of those fields.
    

Problem conclusion

  • The JIT compiler has been updated to handle these scenarios.
    .
    This APAR will be fixed in the following Java Releases:
       8    SR3 FP22  (8.0.3.22)
       7    SR10      (7.0.10.0)
       7 R1 SR4       (7.1.4.0)
       6 R1 SR8 FP40  (6.1.8.40)
    .
    Contact your IBM Product's Service Team for these Service
    Refreshes and Fix Packs.
    For those running stand-alone, information about the available
    Service Refreshes and Fix Packs can be found at:
               https://www.ibm.com/developerworks/java/jdk/
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV91276

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    130

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-12-05

  • Closed date

    2016-12-22

  • Last modified date

    2017-01-05

  • 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

  • R130 PSY

       UP

  • R260 PSY

       UP

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Document Information

Modified date:
05 January 2017