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IV60711: ILLEGAL INSTRUCTION EXCEPTION IN JIT SHARED LIBRARY ON RHEL7

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: An illegal instruction exception (SIGILL) is
    raised in the JIT shared library (libj9jit2X.so). The problem
    affects 31-bit System Z JDKs running on Linux (Red Hat
    Enterprise Linux 7).
    .
    Stack Trace: N/A
    .
    

Local fix

  • This issue can be worked around with the
    -Xjit:noResumableTrapHandler option. This option may cause up to
    2% degradation in performance.
    

Problem summary

  • This problem is caused by the JIT signal handler incorrectly
    setting the wrong addressing mode for a helper function on
    signal return. The kernel then tries to invoke the helper method
    in the wrong addressing mode, resulting in a crash.
    

Problem conclusion

  • This APAR will be fixed in the following Java Releases:
       7 R1 SR1  FP1  (7.1.1.1)
       6 R1 SR8  FP1  (6.1.8.1)
       6    SR16 FP1  (6.0.16.1)
       7    SR7  FP1  (7.0.7.1)
    .
    The JVM has been updated to correctly set the addressing mode to
    prevent the illegal instruction exception from occurring.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV60711

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    130

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-05-20

  • Closed date

    2014-05-29

  • Last modified date

    2014-07-14

  • 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

  • R600 PSY

       UP

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Document Information

Modified date:
14 July 2014