[jdk21u-dev] RFR: 8349988: Change cgroup version detection logic to not depend on /proc/cgroups

Tue Oct 28 21:39:45 UTC 2025

On Tue, 28 Oct 2025 13:46:45 GMT, Thomas Fitzsimmons <fitzsim at openjdk.org> wrote:

> Is the new result for `containers/docker/TestPids.java`:
> 
> ```
> Execution failed: `main' threw exception: java.lang.RuntimeException: Limit value 9430 is not accepted as unlimited, log line was [0.051s][trace][os,container] Maximum number of tasks is: 9430
> ```

No it's not new. If failed with kernel 6.11 cgroup v2 before the patch too. The limit was simply undetected in 6.14 HWE.

> 
> expected? If so, is there a bug filed for fixing that?

Looks like it's tracked under [JDK-8356277](https://bugs.openjdk.org/browse/JDK-8356277)

> _I am not a reviewer._ This looks good to me.

Thanks!

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2390#issuecomment-3458595586
PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2390#issuecomment-3458596832