[jdk21u-dev] RFR: 8325587: Shenandoah: ShenandoahLock should allow blocking in VM

[Goetz Lindenmaier]

On Thu, 9 May 2024 05:51:03 GMT, Liang Mao <lmao at openjdk.org> wrote:

> Clean backport of fixing rare long hand shake while mutator threads in heavy contention on ShenandoahLock.
> 
> Additional testing:
> - [x] Linux aarch64 server fastdebug, hotspot/jtreg/tier1 with +UseShenandoahGC

Please backport to 22 first.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/560#issuecomment-2103961991