RFR: JDK-8321565: [REDO] Heap dump does not contain virtual Thread stack references

Sat Dec 9 00:42:14 UTC 2023

On Fri, 8 Dec 2023 23:37:30 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

> This seems to be the same fix that we REDO, is it right? Also, I'd like to double check on what testing was done for this REDO?

It's almost the same (the only differences are deleted asserts in HeapMerger methods).
The PR contains 2 commits to simplify re-review.
The 1st one ("original fix") is exactly the same commit which was integrated for JDK-8299426 and which was reverted;
The 2nd one ("allow heapdump in safepoints") contains the fix for the issue discovered after integration.

The fix was tested by running heapdump-related tests: test/hotspot/jtreg/serviceability, test/hotspot/jtreg/runtime/ErrorHandling, test/hotspot/jtreg/gc/epsilon, test/jdk/sun/tools/jhsdb
and tier1..3 on all Oracle supported platforms

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PR Comment: https://git.openjdk.org/jdk/pull/17040#issuecomment-1848012109