8323086: Shenandoah: Heap could be corrupted by oom during evacuation

[earthling-amzn]

---

Progress

• JDK-8323086 needs maintainer approval
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8323086: Shenandoah: Heap could be corrupted by oom during evacuation (Bug - P3 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk22u.git pull/12/head:pull/12
$ git checkout pull/12

Update a local copy of the PR:
$ git checkout pull/12
$ git pull https://git.openjdk.org/jdk22u.git pull/12/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 12

View PR using the GUI difftool:
$ git pr show -t 12

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk22u/pull/12.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back wkemper! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

⚠️ @earthling-amzn This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[mlbridge]

Webrevs

• 00: Full (72df3a14)

[openjdk]

@earthling-amzn This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8323086: Shenandoah: Heap could be corrupted by oom during evacuation

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 24 new commits pushed to the master branch:

• 9e1e6e1: 8321480: ISO 4217 Amendment 176 Update
• 648ebea: Merge
• e5f3366: 8322418: Problem list gc/TestAllocHumongousFragment.java subtests for 8298781
• 29ed387: 8322532: JShell : Unnamed variable issue
• 2110300: 8322142: JFR: Periodic tasks aren't orphaned between recordings
• f27efd6: 8322489: 22-b27: Up to 7% regression in all Footprint3-*-G1/ZGC
• 0442d77: 8310844: [AArch64] C1 compilation fails because monitor offset in OSR buffer is too large for immediate
• 6aace18: 8319948: jcmd man page needs to be updated
• 28279ee: 8322985: [BACKOUT] 8318562: Computational test more than 2x slower when AVX instructions are used
• 01cb043: 8320275: assert(_chunk->bitmap().at(index)) failed: Bit not set at index
• ... and 14 more: https://git.openjdk.org/jdk22u/compare/75f52ea0b2a6b69cac7633803c3d2dfe7d6bbd6a...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

As you do not have Committer status in this project an existing Committer must agree to sponsor your change.

➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[earthling-amzn]

/integrate

[openjdk]

@earthling-amzn
Your change (at version 72df3a1) is now ready to be sponsored by a Committer.

[shipilev]

/sponsor

[openjdk]

Going to push as commit 484138e.
Since your change was applied there have been 24 commits pushed to the master branch:

• 9e1e6e1: 8321480: ISO 4217 Amendment 176 Update
• 648ebea: Merge
• e5f3366: 8322418: Problem list gc/TestAllocHumongousFragment.java subtests for 8298781
• 29ed387: 8322532: JShell : Unnamed variable issue
• 2110300: 8322142: JFR: Periodic tasks aren't orphaned between recordings
• f27efd6: 8322489: 22-b27: Up to 7% regression in all Footprint3-*-G1/ZGC
• 0442d77: 8310844: [AArch64] C1 compilation fails because monitor offset in OSR buffer is too large for immediate
• 6aace18: 8319948: jcmd man page needs to be updated
• 28279ee: 8322985: [BACKOUT] 8318562: Computational test more than 2x slower when AVX instructions are used
• 01cb043: 8320275: assert(_chunk->bitmap().at(index)) failed: Bit not set at index
• ... and 14 more: https://git.openjdk.org/jdk22u/compare/75f52ea0b2a6b69cac7633803c3d2dfe7d6bbd6a...master

Your commit was automatically rebased without conflicts.

[openjdk]

@shipilev @earthling-amzn Pushed as commit 484138e.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.