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  1. JDK
  2. JDK-7088020

SEGV in JNIHandleBlock::release_block

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    • Subcomponent:
    • Resolved In Build:
      b06
    • CPU:
      x86
    • OS:
      solaris_10
    • Verification:
      Verified

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        Description

        Several tests on linux crash like this:

        #
        # A fatal error has been detected by the Java Runtime Environment:
        #
        # SIGSEGV (0xb) at pc=0x00007fd96584fd7c, pid=11126, tid=140571679655696
        #
        # JRE version: 7.0-b147
        # Java VM: Java HotSpot(TM) 64-Bit Server VM (22.0-b02-internal-201109060011.never.7051798-fastdebug compiled mode linux-amd64 compressed oops)
        # Problematic frame:
        # V [libjvm.so+0x7ced7c] JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
        #
        # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
        #
        # If you would like to submit a bug report, please visit:
        # http://bugreport.sun.com/bugreport/crash.jsp

        The problem is misalignment of the stack when calling throw WrongMethodTypeException. The other uses of generate_throw_exception always call it with an aligned stack but method handles don't enforce alignment while shifting arguments around.

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                • Assignee:
                  never Tom Rodriguez
                  Reporter:
                  never Tom Rodriguez
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