[slurm-users] cgroup2

[Richard Neuböck]

Hi,

I have a (hopefully quick) question: Do the slurm 19.05 cgroup plugins
know how to handle cgroup v2?

I'm setting up slurm on Fedora 32 and get the following error messages:

May 29 11:34:17 regulus slurmd[171632]: error: unable to mount cpuset
cgroup namespace: Device or resource busy
May 29 11:34:17 regulus slurmd[171632]: error: task/cgroup: unable to
create cpuset namespace
May 29 11:34:17 regulus slurmd[171632]: error: Couldn't load specified
plugin name for task/cgroup: Plugin init() callback failed
May 29 11:34:17 regulus slurmd[171632]: error: cannot create task
context for task/cgroup
May 29 11:34:17 regulus slurmd[171632]: error: slurmd initialization failed

Google didn't reveal anything useful for me so my searching tangents and
parts of the slurm source just gave me some directions. I'm guessing
slurm only knows cgroup v1 so it fails when it tries to interact with
cgorup v2. Am I correct or am I barking up the wrong tree?

Thanks for you feedback in advance!
Cheers
Richard


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