RFR: 8286285: G1: Rank issues with ParGCRareEvent_lock and Threads_lock

[David Holmes]

On Fri, 6 May 2022 12:51:24 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   can I have reviews for this change that fixes up the rank of the `ParGCRareEvent_lock` lock? It might be called in the vm-thread that holds the `Threads_lock` during (single-threaded) verification.
> 
> Testing: gha, local testing inducing uses of `ParGCRareEvent_lock` in the VM thread
> 
> Thanks,
>   Thomas

Seems okay.

Thanks.

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Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8573