8322818: Thread::getStackTrace can fail with InternalError if virtual thread is timed-parked when pinned

[AlanBateman]

Clean backport of P3 issue JDK-8322818. The test was initially problematic so I have to include the test-only fixes JDK-8323002 and JDK-8323296 (doing these as follow-on or dependent PRs wouldn't guarantee that would integrate at the same time).

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Progress

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

Issues

• JDK-8322818: Thread::getStackTrace can fail with InternalError if virtual thread is timed-parked when pinned (Bug - P3)
• JDK-8323002: test/jdk/java/lang/Thread/virtual/stress/GetStackTraceALotWhenPinned.java times out on macosx-x64 (Bug - P4)
• JDK-8323296: java/lang/Thread/virtual/stress/GetStackTraceALotWhenPinned.java#id1 timed out (Bug - P4)

Reviewers

• Jaikiran Pai (@jaikiran - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk22.git pull/72/head:pull/72
$ git checkout pull/72

Update a local copy of the PR:
$ git checkout pull/72
$ git pull https://git.openjdk.org/jdk22.git pull/72/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 72

View PR using the GUI difftool:
$ git pr show -t 72

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Download this PR as a diff file:
https://git.openjdk.org/jdk22/pull/72.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back alanb! 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]

@AlanBateman The following label will be automatically applied to this pull request:

• core-libs

When this pull request is ready to be reviewed, an "RFR" email will be sent to the corresponding mailing list. If you would like to change these labels, use the /label pull request command.

[AlanBateman]

/issue add JDK-8323002
/issue add JDK-8323296

[openjdk]

@AlanBateman
Adding additional issue to issue list: 8323002: test/jdk/java/lang/Thread/virtual/stress/GetStackTraceALotWhenPinned.java times out on macosx-x64.

[openjdk]

@AlanBateman
Adding additional issue to issue list: 8323296: java/lang/Thread/virtual/stress/GetStackTraceALotWhenPinned.java#id1 timed out.

[mlbridge]

Webrevs

• 00: Full (d1c748b5)

[jaikiran]

Looks good to me.

[openjdk]

@AlanBateman 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:

8322818: Thread::getStackTrace can fail with InternalError if virtual thread is timed-parked when pinned
8323002: test/jdk/java/lang/Thread/virtual/stress/GetStackTraceALotWhenPinned.java times out on macosx-x64
8323296: java/lang/Thread/virtual/stress/GetStackTraceALotWhenPinned.java#id1 timed out

Reviewed-by: jpai

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 2 new commits pushed to the master branch:

• 8db5d86: 8323008: filter out harmful -std* flags added by autoconf from CXX
• ba96094: 8323610: G1: HeapRegion pin count should be size_t to avoid overflows

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
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.

[AlanBateman]

/integrate

[openjdk]

Going to push as commit 628e31b.
Since your change was applied there have been 3 commits pushed to the master branch:

• 3017281: 8322846: Running with -Djdk.tracePinnedThreads set can hang
• 8db5d86: 8323008: filter out harmful -std* flags added by autoconf from CXX
• ba96094: 8323610: G1: HeapRegion pin count should be size_t to avoid overflows

Your commit was automatically rebased without conflicts.

[openjdk]

@AlanBateman Pushed as commit 628e31b.

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