RFR: JDK-8262068: Improve G1 Full GC by skipping compaction for regions with high survival ratio

[Stefan Johansson]

On Fri, 5 Mar 2021 09:35:56 GMT, Stefan Johansson <sjohanss at openjdk.org> wrote:

>> Thanks Stefan, we're investigating. (currently, we don't have mac env)
>> BTW, before it's reproduced locally, is there any way to get more information from the online test result? I can only find the "View raw logs".
>
> I don't know for sure, I tried downloading the "log archive" but it did not include the hs_err-file which would have been very useful. I can kick of an internal run to see if it reproduces here.

I manage to get a crash locally using a fastdebug build on Linux x64. I haven't had time to look at the error in detail, but it is the same crash. It happened in different test so just running a lot of testing should trigger it in your environment as well.

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PR: https://git.openjdk.java.net/jdk/pull/2760