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IJ07260: CRASHING BECAUSE OF CORRUPTED STACK-ALLOCATED OBJECT

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APAR status

  • Closed as program error.

Error description

  • Error Message: Assert from GC for an object not in heap memory
    .
    Stack Trace: The stderr of the JVM will contain output similar
    to the following:
    07:56:05.803 0x140b6e00    j9mm.141    *   Object not in heap
    0000000042A22190
    ** ASSERTION FAILED ** at MarkingScheme.cpp:366: ((false))
    .
    This problems can happen on all platforms including X, Power and
    Z
    

Local fix

  • -Xjit:disableEscapeAnalysis
    

Problem summary

  • The problem happens because of an optimization in the JIT
    Compiler allocates an object on the stack even when this object
    can be exposed to other threads.
    

Problem conclusion

  • The optimization has been fixed to correctly detect the object
    can be exposed to other threads and allocate it on the heap.
    .
    This APAR will be fixed in the following Java Releases:
       7 R1 SR4 FP30  (7.1.4.30)
       6 R1 SR8 FP70  (6.1.8.70)
       7    SR10 FP30 (7.0.10.30)
       8    SR5 FP20  (8.0.5.20)
    .
    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

    IJ07260

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    130

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-06-20

  • Closed date

    2018-06-27

  • Last modified date

    2018-06-27

  • 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



Document information

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

Software version: 130

Reference #: IJ07260

Modified date: 27 June 2018