8380316: Test runtime/os/AvailableProcessors.java fails Invalid argument

[sendaoYan]

Hi all,

This pull request contains a backport of commit 5c2ef749 from the openjdk/jdk repository.

The commit being backported was authored by SendaoYan on 23 Mar 2026 and was reviewed by David Holmes and Albert Mingkun Yang.

Thanks!

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8380316 needs maintainer approval

Issue

• JDK-8380316: Test runtime/os/AvailableProcessors.java fails Invalid argument (Bug - P4 - Approved)

Reviewing

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk26u.git pull/126/head:pull/126
$ git checkout pull/126

Update a local copy of the PR:
$ git checkout pull/126
$ git pull https://git.openjdk.org/jdk26u.git pull/126/head

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Checkout this PR locally:
$ git pr checkout 126

View PR using the GUI difftool:
$ git pr show -t 126

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Download this PR as a diff file:
https://git.openjdk.org/jdk26u/pull/126.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.

[sendaoYan]

Change has been verified locally on linux-x64 by run the test test/hotspot/jtreg/runtime/os/AvailableProcessors.java manully.

[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:

8380316: Test runtime/os/AvailableProcessors.java fails Invalid argument

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 26 new commits pushed to the master branch:

• 7f631ea: 8378713: C2: performance regression due to missing constant folding for Math.pow()
• d8f0700: 8375294: (fs) Files.copy can fail with EOPNOTSUPP when copy_file_range not supported
• 2aec1ce: 8381596: Adjust checks which use supports_ht() on x86 for hybrid CPUs
• ... and 23 more: https://git.openjdk.org/jdk26u/compare/a87563eb9e663126e03c18694194c4fa1e82b8a3...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 (e0246e93)

[sendaoYan]

/approval request Clean backport to fix the test bug which cause fails on some special machines. Change has been verified locally on linux-x64 by run the test test/hotspot/jtreg/runtime/os/AvailableProcessors.java manully. Test-fix only, no risk.

[openjdk]

@sendaoYan
8380316: The approval request has been created successfully.