RFR: 8373118: Test java/lang/Thread/virtual/Starvation.java timed out [v20]

[Viktor Klang]

On Tue, 6 Jan 2026 22:52:57 GMT, Doug Lea <dl at openjdk.org> wrote:

>> Changes signal filtering to avoid possible starvation
>
> Doug Lea has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 28 additional commits since the last revision:
> 
>  - Merge branch 'openjdk:master' into JDK-8373118
>  - Split external push
>  - Undo/redo ordering changes
>  - Strengthen some orderings
>  - Merge branch 'openjdk:master' into JDK-8373118
>  - Not sure why this merge is necessary
>    Merge remote-tracking branch 'refs/remotes/origin/JDK-8373118' into JDK-8373118
>  - Merge branch 'openjdk:master' into JDK-8373118
>  - Fix deactivate; faster quiescence
>  - recheck avoiding cross-class offsets
>  - Merge branch 'openjdk:master' into JDK-8373118
>  - ... and 18 more: https://git.openjdk.org/jdk/compare/35f1afff...54a8672a

src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java line 1969:

> 1967:                             }
> 1968:                             else if (q.base == b &&
> 1969:                                      U.compareAndSetReference(a, bp, t, null)) {

Would we expect a[bp] to be possible to be something besides `t` or `null` here? If not, I think we could switch to a `U.getAndSetReference(a, bp, null) == t` here?

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PR Review Comment: https://git.openjdk.org/jdk/pull/28797#discussion_r2668520485