On Tue, 21 Dec 2021 20:51:04 GMT, Coleen Phillimore <cole...@openjdk.org> wrote:
> This is the fix for https://github.com/openjdk/jdk/pull/6900 retargeted to > JDK 18. > > Thanks to @stefank and @fisk for the diagnosis. ZGC is looking at metadata in > unloaded nmethods, but redefinition doesn't keep this metadata from being > deallocated. Change the iterators that mark metadata in use to walk unloaded > nmethods as well as other alive nmethods. > > The test case reproduces the crash on windows if run in an 100 iteration > loop. This fix does not crash in the same test. Also ran tier1-6. > > Above testing in progress. Thanks for reviewing, Vladimir and Serguei. ------------- PR: https://git.openjdk.java.net/jdk18/pull/63
