8319633: runtime/posixSig/TestPosixSig.java intermittent timeouts on UNIX

[JoKern65]

Every 1-2 weeks we run into timeouts when running jtreg test runtime/posixSig/TestPosixSig.java on UNIX.
The thread stack shows that we are in line 54 of TestPosixSig.java (callstack see below).

The reason is the following: The test registers a new dummy signal handler for SIGILL, without delegating the task to the previous handler in the chain. In case the VM then calls a Java method marked as not-entrant at least on PPC64 a SIGILL is raised. Because this is not handled by the registered handler the SIGILL will happen again and again in an endless recursion.
One solution would be to run the test in interpreted mode.

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
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• Commit message must refer to an issue
• JDK-8319633 needs maintainer approval

Issue

• JDK-8319633: runtime/posixSig/TestPosixSig.java intermittent timeouts on UNIX (Bug - P4 - Approved) ⚠️ Issue is already resolved. Consider making this a "backport pull request" by setting the PR title to Backport <hash> with the hash of the original commit. See Backports.

Reviewers

• Matthias Baesken (@MBaesken - Reviewer)
• Martin Doerr (@TheRealMDoerr - Reviewer)

Reviewing

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Update a local copy of the PR:
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$ git pull https://git.openjdk.org/jdk21u-dev.git pull/30/head

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$ git pr checkout 30

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[mlbridge]

Webrevs

• 00: Full (10658a9a)

[openjdk]

⚠️ @JoKern65 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.

[JoKern65]

/approval JDK-8319633 request Backport of test fix for AIX. No risk, clean backport.

[openjdk]

@JoKern65
JDK-8319633: The approval request was already up to date.

[openjdk]

@JoKern65 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:

8319633: runtime/posixSig/TestPosixSig.java intermittent timeouts on UNIX

Reviewed-by: mbaesken, mdoerr

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 7 new commits pushed to the master branch:

• fccb0a1: 8321131: Console read line with zero out should zero out underlying buffer in JLine
• db343c9: 8314612: TestUnorderedReduction.java fails with -XX:MaxVectorSize=32 and -XX:+AlignVector
• 63aecc5: 8320300: Adjust hs_err output in malloc/mmap error cases
• e8cf56c: 8320798: Console read line with zero out should zero out underlying buffer
• d65289d: 8313082: Enable CreateCoredumpOnCrash for testing in makefiles
• 901048b: 8315680: java/lang/ref/ReachabilityFenceTest.java should run with -Xbatch
• 0106db0: 8320807: [PPC64][ZGC] C1 generates wrong code for atomics

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.

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[JoKern65]

/Integrate

[MBaesken]

/sponsor

[openjdk]

@MBaesken The change author (@JoKern65) must issue an integrate command before the integration can be sponsored.

[JoKern65]

/integrate

[openjdk]

@JoKern65
Your change (at version 10658a9) is now ready to be sponsored by a Committer.

[TheRealMDoerr]

LGTM.

[TheRealMDoerr]

/sponsor

[openjdk]

Going to push as commit dcf6eea.
Since your change was applied there have been 7 commits pushed to the master branch:

• fccb0a1: 8321131: Console read line with zero out should zero out underlying buffer in JLine
• db343c9: 8314612: TestUnorderedReduction.java fails with -XX:MaxVectorSize=32 and -XX:+AlignVector
• 63aecc5: 8320300: Adjust hs_err output in malloc/mmap error cases
• e8cf56c: 8320798: Console read line with zero out should zero out underlying buffer
• d65289d: 8313082: Enable CreateCoredumpOnCrash for testing in makefiles
• 901048b: 8315680: java/lang/ref/ReachabilityFenceTest.java should run with -Xbatch
• 0106db0: 8320807: [PPC64][ZGC] C1 generates wrong code for atomics

Your commit was automatically rebased without conflicts.

[openjdk]

@TheRealMDoerr @JoKern65 Pushed as commit dcf6eea.

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