[jdk21u-dev] Integrated: 8309627: Incorrect sorting of DirtyCardQueue buffers

[Daniel Hu]

On Mon, 9 Jun 2025 19:25:37 GMT, Daniel Hu <duke at openjdk.org> wrote:

> Clean backport. Fixes G1 DirtyCardQueue's sort from breaking on large heaps (8TB+ on default card size 512 bytes, 2TB+ for smallest card size 128 bytes). Ran on internal Amazon pipelines and passes jtreg tier1-4 + tck tests on the following platforms: linux x64, aarch64; macos x64, aarch64; windows x64. Also passes GHA.

This pull request has now been integrated.

Changeset: b9a68383
Author:    Daniel Hu <costmuch at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
URL:       https://git.openjdk.org/jdk21u-dev/commit/b9a683831bca7b3d0a9502deb19df957f46db364
Stats:     3 lines in 1 file changed: 0 ins; 0 del; 3 mod

8309627: Incorrect sorting of DirtyCardQueue buffers

Backport-of: b94b679e9a82ff2ee6daee9631ce707e9b9eaf6b

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PR: https://git.openjdk.org/jdk21u-dev/pull/1861