RFR: 8245543: Cgroups: Incorrect detection logic on some systems (still reproducible) [v3]

[Severin Gehwolf]

On Tue, 6 Oct 2020 08:32:25 GMT, Severin Gehwolf <sgehwolf at openjdk.org> wrote:

>> src/java.base/linux/classes/jdk/internal/platform/CgroupSubsystemFactory.java line 150:
>> 
>>> 148:         // find anyway in that case.
>>> 149:         try (Stream<String> mntInfo = CgroupUtil.readFilePrivileged(Paths.get(mountInfo))) {
>>> 150:             boolean anyCgroupMounted = mntInfo.anyMatch(CgroupSubsystemFactory::noSystemdCgroupLine);
>> 
>> I'd prefer a similar approach to the hotspot side where you do a positive check for controllers we are interested in
>> rather than a negative check for systemd.
>
> OK. I'll probably fold JDK-8254001 into this one then.

@bobvandette Done in the latest version. Thoughts?

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

PR: https://git.openjdk.java.net/jdk/pull/485