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8314139: TEST_BUG: runtime/os/THPsInThreadStackPreventionTest.java could fail on machine with large number of cores#3212

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8314139: TEST_BUG: runtime/os/THPsInThreadStackPreventionTest.java could fail on machine with large number of cores#3212
tabata-d wants to merge 2 commits into
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@tabata-d

@tabata-d tabata-d commented May 29, 2026

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This fix addresses a test reliability issue in the HotSpot VM where the runtime/os/THPsInThreadStackPreventionTest.java test could fail with "RSS+Swap larger than expected" errors on machines with a large number of cores.

This is a clean backport from JDK 22 to JDK 11.

Testing:
THPsInThreadStackPreventionTest.java test, including both #ENABLED and #DISABLED configurations, passed successfully.



Progress

  • Change must be properly reviewed (1 review required, with at least 1 Reviewer)
  • JDK-8314139 needs maintainer approval
  • Change must not contain extraneous whitespace
  • Commit message must refer to an issue

Integration blocker

 ⚠️ Dependency #3171 must be integrated first

Issue

  • JDK-8314139: TEST_BUG: runtime/os/THPsInThreadStackPreventionTest.java could fail on machine with large number of cores (Bug - P4)

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev.git pull/3212/head:pull/3212
$ git checkout pull/3212

Update a local copy of the PR:
$ git checkout pull/3212
$ git pull https://git.openjdk.org/jdk11u-dev.git pull/3212/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 3212

View PR using the GUI difftool:
$ git pr show -t 3212

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/3212.diff

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@bridgekeeper

bridgekeeper Bot commented May 29, 2026

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👋 Welcome back dtabata! A progress list of the required criteria for merging this PR into pr/3210 will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

@openjdk

openjdk Bot commented May 29, 2026

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❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

@openjdk openjdk Bot changed the title backport 733250288325bc663afc0376342d4c5a7a471cbd 8314139: TEST_BUG: runtime/os/THPsInThreadStackPreventionTest.java could fail on machine with large number of cores May 29, 2026
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openjdk Bot commented May 29, 2026

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

@openjdk openjdk Bot added backport Port of a pull request already in a different code base clean Identical backport; no merge resolution required rfr Pull request is ready for review labels May 29, 2026
@mlbridge

mlbridge Bot commented May 29, 2026

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@tstuefe tstuefe left a comment

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Okay. Please make sure that Github Actions run through successfully

@openjdk-notifier openjdk-notifier Bot changed the base branch from pr/3210 to pr/3171 June 8, 2026 01:53
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The parent pull request that this pull request depends on has been closed without being integrated and the target branch of this pull request has been updated as the previous branch was deleted. This means that changes from the parent pull request will start to show up in this pull request. If closing the parent pull request was done in error, it will need to be re-opened and this pull request will need to manually be retargeted again.

@tabata-d

tabata-d commented Jun 8, 2026

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After the discussion in #3210, I have decided to close this PR.

@tabata-d tabata-d closed this Jun 8, 2026
@openjdk openjdk Bot removed the clean Identical backport; no merge resolution required label Jun 8, 2026
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backport Port of a pull request already in a different code base rfr Pull request is ready for review

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