[systemd-bugs] [Bug 56971] kernel patched with bfs: "Failed to create cgroup cpu:/: No such file or directory"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=56971

--- Comment #5 from Alex Leach <beamesleach at gmail.com> ---
(In reply to comment #4)
> I think this is caused by the following lines in rtkit-daemon.service:
> # Work around the fact that the Linux currently doesn't assign any RT
> # budget to CPU control groups that have none configured explicitly
> ControlGroup=cpu:/
> 
> The message then shows up when rtkit-daemon starts.

I have that same setting in that same file, and dmesg reports that same error
message. However, `systemctl status rtkit-daemon.service` does not catch the
error.

Is it safe to comment out that line?

In case it matters: I have a 6 core (12 HT) Intel Westmere CPU, which I believe
has its own built-in CPU scheduling mechanism. I'm using Linux 3.9.7-1-ck
kernel, which is from the Arch Linux repo-ck repository of Intel-optimised,
pre-compiled kernels. I use the Nehalem-optimised one, which is compiled with
BFS support...

KR,
Alex

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