IBM Support

IV35118: DATA CORRUPTION IN HEAP

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APAR status

  • Closed as program error.

Error description

  • Error Message: Crash or incorrect results
    .
    Stack Trace: N/A
    .
    

Local fix

  • Disable the JIT with -Xint.
    

Problem summary

  • In certain cases the JIT may fail to properly write to arrays
    and instead corrupt other memory in the heap. When writing the
    same value to all elements of an array the user may observe that
    some sequential elements don't contain the expected values.
    Alternatively, the user may observe that an object in the heap
    has been corrupted with a particular value being repeated
    multiple times in sequential memory locations.
    

Problem conclusion

  • This defect will be fixed in:
    7.0.0 SR4
    6.0.1 SR5
    .
    The JIT has been fixed to properly write to arrays in such
    cases.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV35118

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-01-15

  • Closed date

    2013-01-15

  • Last modified date

    2013-01-15

  • 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

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Document Information

Modified date:
15 January 2013