IBM Support

IV72278: JAVA CRASH WITH INVALID BRANCH TARGET

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APAR status

  • Closed as program error.

Error description

  • Error Message: A segfault is received from in JIT compiled code.
    It attempted to branch to an invalid address.
    .
    Stack Trace:
    .
    The crash only happens with HCR mode (hot code replacement)
    enabled. The crash has only been seen on Power platform.
    

Local fix

  • In order to avoid this issue it is necessary to remove the Java
    agents from the server.
    

Problem summary

  • The problem is caused by incorrect HCR patching. On Power the
    test for valid patch targets was incomplete.
    

Problem conclusion

  • The JIT has been updated to prevent incorrect HCR patching.
    .
    This APAR will be fixed in the following Java Releases:
       7    SR9       (7.0.9.0)
       8    SR1       (8.0.1.0)
       6 R1 SR10      (6.1.10.0)
       7 R1 SR3       (7.1.3.0)
    .
    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

    IV72278

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-04-15

  • Closed date

    2015-04-15

  • Last modified date

    2015-04-28

  • 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

  • R130 PSY

       UP



Document information

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

Software version: 260

Reference #: IV72278

Modified date: 28 April 2015