[jdk21u-dev] RFR: 8343191: Cgroup v1 subsystem fails to set subsystem path [v2]

[Sergey Chernyshev]

On Fri, 22 Aug 2025 03:29:08 GMT, lingjun-cg <duke at openjdk.org> wrote:

>> Backport JDK-8343191 for fixing NPE when run with cgroupv1 on some older linux kernel(3.10). Application throw NPE when startup, and also  cannot get correct cpu count in contianer.
>> The PR includes all test bug fix  in  these issues "JDK-8351382,JDK-8352926,JDK-8354475,JDK-8360533".
>
> lingjun-cg has updated the pull request incrementally with four additional commits since the last revision:
> 
>  - Backport 97ec9d3e0a6e3455579b567e1f58026f5b168c09
>  - Backport e579cca619147aa51563dc00f374e02db49e1238
>  - Backport 9ca1004e76a614328cd2eb7546143839c4d2f810
>  - Backport 46b3d1d8cfd03e01d993be19d725cdbcafef7865

This is unrelated to OpenJDK 21 effort. The current JDK-8343191 is backporting cleanly and all follow ups are clean. Let me sumbit the follow ups as dependent PRs as suggested by Götz and Severin. Once it's integrated you will take your time fixing the downsteam repository.

-------------

PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2109#issuecomment-3342765931