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  1. JDK
  2. JDK-8164103

C2: Broken cmpxchgb encoding on x86

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Details

    • Bug
    • Resolution: Fixed
    • P3
    • 9
    • 9
    • hotspot
    • None
    • b135
    • x86_64
    • windows

    Description

      The attached test VarHandleTestAccessBoolean.java fails only on windows_x64_6.3-product.

      To test apply the following patch to jdk9/dev/jdk:

        http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8161444-vhs-bitwise-atomics/webrev/

      compile with:

       javac --add-exports java.base/jdk.internal.misc=ALL-UNNAMED VarHandleTestAccessBoolean.java

      and run with the attached run.sh script.

      So far it has not been possible to reproduce on any other platform other than windows_x64_6.3-product.

      Attachments

        Issue Links

          blocks

          Sub-task - The sub-task of the issue JDK-8161444 VarHandles should provide access bitwise atomics

          • P3 - Major loss of function.
          • Resolved
          relates to

          Sub-task - The sub-task of the issue JDK-8157726 VarHandles/Unsafe should support sub-word atomic ops

          • P3 - Major loss of function.
          • Resolved

          Activity

            People

              vlivanov Vladimir Ivanov
              psandoz Paul Sandoz
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              Dates

                Created:
                Updated:
                Resolved: