title: error: cgroup namespace 'freezer' not mounted. aborting
body: <p>Trying to run slurmd:</p>
  <pre><code>sudo systemctl start slurmd
  </code></pre>
  <p>I display the status of the daemon and an error is displayed on the screen:</p>
  <pre><code>&gt;&gt;sudo systemctl status slurmd
  ● slurmd.service - Slurm node daemon
     Loaded: loaded (/lib/systemd/system/slurmd.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Mon 2020-06-29 18:13:06 MSK; 2s ago
       Docs: man:slurmd(8)
    Process: 13402 ExecStart=/usr/sbin/slurmd $SLURMD_OPTIONS (code=exited, status=1/FAILURE)
  
  июн 29 18:13:06 ecm systemd[1]: Starting Slurm node daemon...
  июн 29 18:13:06 ecm slurmd-ecm[13402]: Message aggregation disabled
  июн 29 18:13:06 ecm slurmd-ecm[13402]: error: cgroup namespace 'freezer' not mounted. aborting
  июн 29 18:13:06 ecm slurmd-ecm[13402]: error: unable to create freezer cgroup namespace
  июн 29 18:13:06 ecm slurmd-ecm[13402]: error: Couldn't load specified plugin name for proctrack/cgroup: Plugin init() callback failed
  июн 29 18:13:06 ecm slurmd-ecm[13402]: error: cannot create proctrack context for proctrack/cgroup
  июн 29 18:13:06 ecm systemd[1]: slurmd.service: Control process exited, code=exited, status=1/FAILURE
  июн 29 18:13:06 ecm slurmd-ecm[13402]: error: slurmd initialization failed
  июн 29 18:13:06 ecm systemd[1]: slurmd.service: Failed with result 'exit-code'.
  июн 29 18:13:06 ecm systemd[1]: Failed to start Slurm node daemon.
  </code></pre>
  <p>I don't know how to fix it. I hope for your help. I use slurm version 18.08.05 and debian 10.</p>
  <p>UPD.
  I changed the ProctrackType value in slurm.config to proctrack/linuxproc:</p>
  <pre><code>ProctrackType=proctrack/linuxproc
  </code></pre>
  <p>All is work.</p>