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  1. JDK
  2. JDK-8331714

Make OopMapCache installation lock-free

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    Backports

      Description

        Trying to solve JDK-8331572 runs into all sorts of lock ranking issues with `OopMapCacheAlloc_lock`. I think it would be a bit saner to rewrite the double-checked locking installation to atomic lock-free.

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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-8333175 Make OopMapCache installation lock-free

            • 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-8333271 Make OopMapCache installation lock-free

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

            Enhancement - null JDK-8331572 Allow using OopMapCache outside of STW GC phases

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

            Enhancement - null JDK-8331771 ZGC: Remove OopMapCacheAlloc_lock ordering workaround

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

            Commit Commit openjdk/jdk21u-dev/fb7713d3

            Commit Commit openjdk/jdk22u/d7d718dc

            Commit Commit openjdk/jdk/a2584a83

            Review Review openjdk/jdk21u-dev/608

            Review Review openjdk/jdk22u/225

            Review Review openjdk/jdk/19100

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                shade Aleksey Shipilev
                shade Aleksey Shipilev
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                  Created:
                  Updated:
                  Resolved: