On Sat, 17 Oct 2020 08:38:10 GMT, Per Liden <pli...@openjdk.org> wrote:
>> The cm03t001 test creates a local JNI handle in the prepare function. It >> later uses that handle from a callback >> function, from another thread. When the callback runs, ZGC applies a load >> barrier to that handle and self-heals it in >> the other threads stack. Later when that thread verifies its stack, during >> the start of its stack processing, it finds >> that the oop is unexpectedly not "bad". It's invalid to send a local JNI >> handle over to another thread: >> https://docs.oracle.com/en/java/javase/15/docs/specs/jni/design.html#global-and-local-references >> So, my proposed fix is to convert the local handle to a global handle. >> >> I've tested this with the reproducer in the bug report. > > Marked as reviewed by pliden (Reviewer). Thanks for reviewing! ------------- PR: https://git.openjdk.java.net/jdk/pull/701
