IBM Support

IV77913: JVM CRASHES IN AOT COMPILED METHOD

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APAR status

  • Closed as program error.

Error description

  • Error Message: A SIGSEGV is raised in a method that has been AOT
    compiled.
    .
    Stack Trace: N/A
    .
    This problem can only occur if AOT compilation is enabled in the
    JVM on z Systems.
    

Local fix

  • N/A
    

Problem summary

  • During AOT compilation, the problem is caused when the JIT
    compiler decides to merge two pointers to be stored in the data
    section of the method which have different inline sites. As a
    result, when the pointer which got overwritten by the bad merge
    gets accessed, it does not have the correct value and will
    likely result in a SIGSEGV being raised.
    

Problem conclusion

  • The JIT compiler has been updated to prevent merging pointers in
    the data section of an AOT compiled method with different inline
    sites.
    .
    This APAR will be fixed in the following Java Releases:
       7 R1 SR3 FP20  (7.1.3.20)
       8    SR2       (8.0.2.0)
       6 R1 SR8 FP15  (6.1.8.15)
       7    SR9 FP20  (7.0.9.20)
    .
    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

    IV77913

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    130

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-10-09

  • Closed date

    2015-10-09

  • Last modified date

    2015-11-02

  • 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

  • R130 PSY

       UP

  • R260 PSY

       UP



Document information

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

Software version: 130

Reference #: IV77913

Modified date: 02 November 2015