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Description of problem: I wanted to classify some user processes using cgclassify, but it failed saying the subsystem 'systemd' is not mounted. But 'mount' reports: cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd) So it is mounted. On the other hand, 'lssubsys' reports: cpuset cpu,cpuacct memory devices freezer net_cls blkio perf_event So systemd does not appears, even if its tree exists in /sys/fs/cgroup/systemd. Is-it a bug or is cgclassify unable to handle systemd processes? I have not found any clues yet... Version-Release number of selected component (if applicable): libcgroup-tools-0.37.1-4.fc16.x86_64, systemd-37-11.fc16.x86_64
It's a feature, not a bug. Libcgroup is build in a way that it completely ignores "name=systemd" hierarchy. It's systemd's private one and no one should touch it. You can use systemd native tool systemd-cgls to see its content.
Sorry, wrong resolution, this bug should be closed as notabug - see comment 1