RFR: 8373118: Test java/lang/Thread/virtual/Starvation.java timed out [v5]

[Viktor Klang]

On Sun, 14 Dec 2025 13:06:46 GMT, Doug Lea <dl at openjdk.org> wrote:

>> Changes signal filtering to avoid possible starvation
>
> Doug Lea has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Adjust runworker for previous update

src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java line 1881:

> 1879:             else
> 1880:                 nc = (v.stackPred & LMASK) | (c & TC_MASK) | ac;
> 1881:             if (c == (c = compareAndExchangeCtl(c, nc))) {

I think the risk here is that this introduces more cache-coordination contention, esp. on multisocket aarch64.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28797#discussion_r2618743184