[jdk21u-dev] Integrated: 8334482: Shenandoah: Deadlock when safepoint is pending during nmethods iteration

[Aleksey Shipilev]

On Tue, 30 Jul 2024 11:56:49 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Fixes Shenandoah deadlock. There is one minor contextual difference that make the backport unclean: the existence of `ICStubVerifier` that was removed in JDK 23 with [JDK-8322630](https://bugs.openjdk.org/browse/JDK-8322630).
> 
> Additional testing:
>  - [x] Linux x86_64 server fastdebug, `all` with `-XX:+UseShenandoahGC`
>  - [x] Linux AArch64 server fastdebug, `all` with `-XX:+UseShenandoahGC`

This pull request has now been integrated.

Changeset: c2daaa63
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk21u-dev/commit/c2daaa63aba87c801db76478802a87a3bbb326db
Stats:     72 lines in 4 files changed: 25 ins; 33 del; 14 mod

8334482: Shenandoah: Deadlock when safepoint is pending during nmethods iteration

Backport-of: 2aeb12ec03944c777d617d0be48982fd225b16e7

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PR: https://git.openjdk.org/jdk21u-dev/pull/880