8364114: Test TestHugePageDecisionsAtVMStartup.java#LP_enabled fails when no free hugepage

[sendaoYan]

Hi all,

This pull request contains a backport of commit 3b0da298 from the openjdk/jdk repository.

The commit being backported was authored by SendaoYan on 28 Jul 2025 and was reviewed by Thomas Stuefe and David Holmes.

Thanks!

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8364114 needs maintainer approval

Issue

• JDK-8364114: Test TestHugePageDecisionsAtVMStartup.java#LP_enabled fails when no free hugepage (Enhancement - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk25u.git pull/44/head:pull/44
$ git checkout pull/44

Update a local copy of the PR:
$ git checkout pull/44
$ git pull https://git.openjdk.org/jdk25u.git pull/44/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 44

View PR using the GUI difftool:
$ git pr show -t 44

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk25u/pull/44.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back syan! 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]

@sendaoYan 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:

8364114: Test TestHugePageDecisionsAtVMStartup.java#LP_enabled fails when no free hugepage

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 8 new commits pushed to the master branch:

• f730110: 8354447: Missing test for retroactive @SuppressWarnings("dangling-doc-comments") behavior
• 91b33c3: 8360022: ClassRefDupInConstantPoolTest.java fails when running in repeat
• e430581: Merge
• ... and 5 more: https://git.openjdk.org/jdk25u/compare/12d7b2e4581d9b14d8867850671b31c9163a32e0...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.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[openjdk]

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

[openjdk]

⚠️ @sendaoYan 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 (ca360f1c)

[sendaoYan]

GHA report 2 failures are all unrelated to this backport PR.

1. linux-cross-compile / build s390x fails at 'Create Sysroot' stage, it seems like infrastructure issue
2. linux-cross-compile / build ppc64le fails at 'Create Sysroot' stage, it seems like infrastructure issue

[sendaoYan]

/approval request Clean backport to fix test bug which may cause test fails when there is no free hugepage. Change has been verified locally with 3 tests test/hotspot/jtreg/runtime/os/TestHugePageDetection.java test/hotspot/jtreg/runtime/os/TestHugePageDecisionsAtVMStartup.java test/hotspot/jtreg/runtime/os/THPsInThreadStackPreventionTest.java test/hotspot/jtreg/gc/z/TestAllocateHeapAt.java. Test-fix only, risk is very low.

[openjdk]

@sendaoYan
8364114: The approval request has been created successfully.

[sendaoYan]

Thanks for the approved @robm-openjdk.

/integrate

[openjdk]

Going to push as commit 00c9b2e.
Since your change was applied there have been 21 commits pushed to the master branch:

• 71806ba: 8359687: Use PassFailJFrame for java/awt/print/Dialog/DialogType.java
• 0c02f7a: 8362501: Update test/hotspot/jtreg/applications/jcstress/README
• 869879b: 8359105: RISC-V: No need for acquire fence in safepoint poll during JNI calls
• ... and 18 more: https://git.openjdk.org/jdk25u/compare/12d7b2e4581d9b14d8867850671b31c9163a32e0...master

Your commit was automatically rebased without conflicts.

[openjdk]

@sendaoYan Pushed as commit 00c9b2e.

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