[jdk21u-dev] RFR: 8337994: [REDO] Native memory leak when not recording any events

[Boris Ulasevich]

On Thu, 12 Dec 2024 07:30:02 GMT, Goetz Lindenmaier <goetz at openjdk.org> wrote:

>>> Hi @bulasevich, can this wait for the April update? It would get some more test coverage.
>> 
>> Hi @GoeLin 
>> In my opinion, this bug could have a significant impact on customers, and it would be ideal to fix it as soon as possible. However, I understand that some reasonable patience is necessary. I'm not opposed to waiting for the next update.
>
> Hi @bulasevich, @phohensee,
> yes, this is easy to reproduce. 
> I think we should backout this if there is not a simple and quick solution.
> I will create a backout change around 14:00 CET, this should make the build of our nightly tests.

@GoeLin , thanks for reporting.

The test passes on my x86 and aarch machines with latest jdk21u-dev.
Do you have any insight into why it behaves differently on your side?

x86$ /ws/jtreg-7.4/bin/jtreg -jdk:build/linux-x86_64-server-release/jdk/ test/jdk/jdk/jfr/jvm/TestChunkIntegrity.java
Test results: passed: 1
x86$ /ws/jtreg-7.4/bin/jtreg -jdk:build/linux-x86_64-server-fastdebug/jdk/ test/jdk/jdk/jfr/jvm/TestChunkIntegrity.java
Test results: passed: 1

aarch$ git clone https://github.com/openjdk/jdk21u-dev.git ; cd jdk21u-dev
aarch$ bash configure --with-boot-jdk=/ws/jdk-21 ; make
aarch$ bash configure --with-boot-jdk=/ws/jdk-21 --with-debug-level=fastdebug; make CONF=debug

aarch$ ~/jtreg-7.4/bin/jtreg -jdk:build/linux-aarch64-server-release/jdk/ test/jdk/jdk/jfr/jvm/TestChunkIntegrity.java
Test results: passed: 1
aarch$ ~/jtreg-7.4/bin/jtreg -jdk:build/linux-aarch64-server-fastdebug/jdk/ test/jdk/jdk/jfr/jvm/TestChunkIntegrity.java
Test results: passed: 1

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/1095#issuecomment-2538618401