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  1. JDK
  2. JDK-8270894

Use acquire semantics in ObjectSynchronizer::read_stable_mark()

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    • b08
    • generic
    • generic

    Backports

      Description

        Currently, the object header is read using plain loads in read_stable_mark() (synchronizer.cpp). The matching stores use release semantics in corresponding CAS and release_store(). It seems reasonable to use acquire-semantics for the loads of the object header.

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            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8311281 Use acquire semantics in ObjectSynchronizer::read_stable_mark()

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8315552 Use acquire semantics in ObjectSynchronizer::read_stable_mark()

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            links to

            Commit Commit openjdk/jdk17u-dev/8d6c17d9

            Commit Commit openjdk/jdk/f2261903

            Review Review openjdk/jdk17u-dev/1507

            Review Review openjdk/jdk/4829

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                rkennke Roman Kennke
                rkennke Roman Kennke
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