RFR: 8338383: Implement JEP 491: Synchronize Virtual Threads without Pinning [v30]

[Patricio Chilano Mateo]

On Tue, 5 Nov 2024 01:47:29 GMT, Patricio Chilano Mateo <pchilanomate at openjdk.org> wrote:

>> Patricio Chilano Mateo has updated the pull request incrementally with five additional commits since the last revision:
>> 
>>  - Add oopDesc::has_klass_gap() check
>>  - Rename waitTimeout/set_waitTimeout accessors
>>  - Revert suggestion to ThawBase::new_stack_frame
>>  - Improve JFR pinned reason in event
>>  - Use freeze_result consistently
>
> I brought some JFR changes from the loom repo that improve the reported reason when pinning.
> @mgronlun @egahlin Could any of you review these JFR changes? Thanks.

> Hi @pchilano,
> 
> I see couple of failures on s390x, can you apply this patch:
> 
Thanks @offamitkumar. Fixed.

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PR Comment: https://git.openjdk.org/jdk/pull/21565#issuecomment-2457338726