[jdk11u-dev] RFR: 8239785: Cgroups: Incorrect detection logic on old systems in hotspot

[Severin Gehwolf]

On Fri, 11 Mar 2022 11:04:45 GMT, Jonathan Dowland <jdowland at openjdk.org> wrote:

> This is a backport of 8239785 for jdk11u. It depends upon
> pr/865: 8253714 (hopefully the bots will figure this out automatically)
> 
> It's not clean, but the only conflict was the copyright line in the
> comment header for src/hotspot/share/prims/whitebox.hpp.
> 
> I tried these tests, and they pass:
> 
> test/hotspot/jtreg/applications/ctw/modules/java_compiler.java
> test/hotspot/jtreg/compiler/c2/Test8004741.java
> test/hotspot/jtreg/containers/cgroup/CgroupSubsystemFactory.java
> 
> Awaiting tier tests via GA.
> 
> ---------
> ### Progress
> - [x] Change must not contain extraneous whitespace
> - [x] Commit message must refer to an issue
> - [ ] Change must be properly reviewed
> 
> ### Integration blocker
>  ⚠️ Dependency #865 must be integrated first
> 
> 
> 
> ### Reviewing
> <details><summary>Using <code>git</code></summary>
> 
> Checkout this PR locally: \
> `$ git fetch https://git.openjdk.java.net/jdk11u-dev pull/881/head:pull/881` \
> `$ git checkout pull/881`
> 
> Update a local copy of the PR: \
> `$ git checkout pull/881` \
> `$ git pull https://git.openjdk.java.net/jdk11u-dev pull/881/head`
> 
> </details>
> <details><summary>Using Skara CLI tools</summary>
> 
> Checkout this PR locally: \
> `$ git pr checkout 881`
> 
> View PR using the GUI difftool: \
> `$ git pr show -t 881`
> 
> </details>
> <details><summary>Using diff file</summary>
> 
> Download this PR as a diff file: \
> <a href="https://git.openjdk.java.net/jdk11u-dev/pull/881.diff">https://git.openjdk.java.net/jdk11u-dev/pull/881.diff</a>
> 
> </details>

Did you run container tests on a cgroups v1 and cgroups v2 system?

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PR: https://git.openjdk.java.net/jdk11u-dev/pull/881