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

[Aleksey Shipilev]

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

Too early for 21u-dev anyway; there are follow-up improvements that we want to resolve first, and then backport all of them at once, so that JDK 21 is not in some intermediate state.

-------------

PR Comment: https://git.openjdk.org/jdk21u-dev/pull/560#issuecomment-2107033593