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. This pull request has now been integrated. Changeset: 2be3e7ef Author: Coleen Phillimore <cole...@openjdk.org> URL: https://git.openjdk.java.net/jdk18/commit/2be3e7ef1cff1aae6faf1f4f0545d561af48d0ba Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod 8278239: vmTestbase/nsk/jvmti/RedefineClasses/StressRedefine failed with EXCEPTION_ACCESS_VIOLATION at 0x000000000000000d Reviewed-by: kvn, sspitsyn, eosterlund ------------- PR: https://git.openjdk.java.net/jdk18/pull/63
