RFR: 8245877: assert(_value != __null) failed: resolving NULL _value in JvmtiExport::post_compiled_method_load

[Serguei Spitsyn]

On Sat, 26 Jun 2021 17:48:15 GMT, Leonid Mesnik <lmesnik at openjdk.org> wrote:

> The crash happens because nmethod might become a zombie before it is enqueued in JvmtiDeferredEventQueue or after it is dequeued from it. The crash is reproduced by serviceability/jvmti/CompiledMethodLoad/Zombie.java. However, it takes ~3K  runs to hit it. I verified the fix by running this test >100K on each platform. Also, I verified that protecting in 'void JvmtiDeferredEventQueue::post(JvmtiEnv* env)' is not enough.

Hi Leonid,
I looks good to me.
Thank you for addressing it!
Thanks,
Serguei

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Marked as reviewed by sspitsyn (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/4602