Comment 2 for bug 1866392

It only happens during package installation. Right after the package is already installed, you can "modprobe -r dlm" and "modprobe dlm" again and then the devices are properly translated from existing - from the pkg - udev rules.

(k)rafaeldtinoco@clubionic03:~$ systemctl status dlm
● dlm.service - dlm control daemon
   Loaded: loaded (/lib/systemd/system/dlm.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2020-03-06 20:25:24 UTC; 1min 24s ago
     Docs: man:dlm_controld
           man:dlm.conf
           man:dlm_stonith
 Main PID: 1365 (dlm_controld)
    Tasks: 2 (limit: 2338)
   CGroup: /system.slice/dlm.service
           └─1365 /usr/sbin/dlm_controld --foreground

Mar 06 20:25:23 clubionic03 systemd[1]: Starting dlm control daemon...
Mar 06 20:25:23 clubionic03 dlm_controld[1365]: 67 dlm_controld 4.0.7 started
Mar 06 20:25:24 clubionic03 systemd[1]: Started dlm control daemon.

(k)rafaeldtinoco@clubionic03:~$ ls -1lah /dev/misc/*
lrwxrwxrwx 1 root root 14 Mar 6 20:24 /dev/misc/dlm-control -> ../dlm-control
lrwxrwxrwx 1 root root 14 Mar 6 20:24 /dev/misc/dlm-monitor -> ../dlm-monitor
lrwxrwxrwx 1 root root 12 Mar 6 20:24 /dev/misc/dlm_plock -> ../dlm_plock