8261262: Kitchensink24HStress.java crashed with EXCEPTION_ACCESS_VIOLATION

[robehn]

When returning from the last Java frame back to vm and hitting a safepoint poll on that last return we sometimes have a last java frame but no vframe.
This seem to be a bug in itself, handled in: 8263576

Other places which uses vframe NULL checks it before, so let's do that in GetCurrentLocationClosure also.

Testing: nsk jdi/jvmti, jdk jdi, jck vm and t1-3.

---

Progress

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Issue

• JDK-8261262: Kitchensink24HStress.java crashed with EXCEPTION_ACCESS_VIOLATION

Reviewers

• Daniel D. Daugherty (@dcubed-ojdk - Reviewer) ⚠️ Review applies to 50348e8
• Serguei Spitsyn (@sspitsyn - Reviewer) ⚠️ Review applies to 50348e8

Download

$ git fetch https://git.openjdk.java.net/jdk pull/3010/head:pull/3010
$ git checkout pull/3010

[bridgekeeper]

👋 Welcome back rehn! 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]

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[mlbridge]

Webrevs

• 01: Full - Incremental (068364b)
• 00: Full (50348e8)

[dcubed-ojdk]

Thumbs up!

I agree that the code should have checked for "if (vf != NULL) {"
instead of asserting that "(vf != NULL)".

[openjdk]

@robehn 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:

8261262: Kitchensink24HStress.java crashed with EXCEPTION_ACCESS_VIOLATION

Reviewed-by: dcubed, sspitsyn

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[sspitsyn]

Robbin,
The fix looks good to me. Thank you for taking care about this issue!
Thanks,
Serguei

[robehn]

Thumbs up!

I agree that the code should have checked for "if (vf != NULL) {"
instead of asserting that "(vf != NULL)".

Thanks Dan!

[robehn]

Robbin,
The fix looks good to me. Thank you for taking care about this issue!
Thanks,
Serguei

Thanks Serguei!

[robehn]

/integrate

[openjdk]

@robehn Since your change was applied there have been 21 commits pushed to the master branch:

• d2144a5: 8263058: Optimize vector shift with zero shift count
• dd6c911: 8263705: Two shenandoah tests fail due to can't find ClassFileInstaller
• 4acb883: 8261666: [mlvm] Remove WhiteBoxHelper
• 5069796: 8263164: assert(_base >= VectorA && _base <= VectorZ) failed: Not a Vector while calling StoreVectorNode::memory_size()
• 996079b: 8260650: test failed with "assert(false) failed: infinite loop in PhaseIterGVN::optimize"
• 9cb9af6: 8260959: remove RECORDS from PreviewFeature.Feature enum
• 05fe06a: 8255790: GTKL&F: Java 16 crashes on initialising GTKL&F on Manjaro Linux
• 422eba8: 8263536: Add @build tags to jpackage tests
• 0d2f87e: 8263562: Checking if proxy_klass_head is still lambda_proxy_is_available
• a67a679: 8263679: C1: Remove vtable call
• ... and 11 more: https://git.openjdk.java.net/jdk/compare/c484d8904285652246c3af212a4211b9a8955149...master

Your commit was automatically rebased without conflicts.

Pushed as commit 7b9d256.

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