Re: RFR: 8254874: ZGC: JNIHandleBlock verification failure in stack watermark processing

2020-10-17 Thread Per Liden
On Fri, 16 Oct 2020 14:29:46 GMT, Stefan Karlsson 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

Re: RFR: 8243962: Various JVM TI tests time out using JFR on Windows [v2]

2020-10-17 Thread Markus Grönlund
> Greetings, > > JDK-8243962 has been a large effort to chase down intermittent timeouts for > certain JVMTI tests when run on Windows > debug builds in combination with JFR. The background is long, included in > JDK-8243962. > In short, the combination of some JVMTI thread suspension tests when

Re: RFR: 8227745: Enable Escape Analysis for Better Performance in the Presence of JVMTI Agents [v12]

2020-10-17 Thread Richard Reingruber
> Hi, > > this is the continuation of the review of the implementation for: > > https://bugs.openjdk.java.net/browse/JDK-8227745 > https://bugs.openjdk.java.net/browse/JDK-8233915 > > It allows for JIT optimizations based on escape analysis even if JVMTI agents > acquire capabilities to access