RFR: 8352414: JFR: JavaMonitorDeflateEvent crashes when deflated monitor object is dead [v2]
Markus Grönlund
mgronlun at openjdk.org
Mon Mar 24 19:49:17 UTC 2025
On Thu, 20 Mar 2025 07:06:25 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:
>> Little regression crept in with [JDK-8351142](https://bugs.openjdk.org/browse/JDK-8351142): on the deflation path, object associated with monitor can be already dead.
>>
>> A new stress test fails within seconds without a fix. It also covers other monitor events, so we have extra coverage there as well.
>>
>> Additional testing:
>> - [x] Linux x86_64 server fastdebug, new stress test now passes
>> - [x] Linux x86_64 server fastdebug, `jdk_jfr`
>
> Aleksey Shipilev has updated the pull request incrementally with one additional commit since the last revision:
>
> Emit the event anyway
Marked as reviewed by mgronlun (Reviewer).
Ok. We could devise a more stable scheme to retain the pairing in the future.
-------------
PR Review: https://git.openjdk.org/jdk/pull/24121#pullrequestreview-2711520462
PR Comment: https://git.openjdk.org/jdk/pull/24121#issuecomment-2749227054
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