I have monitored udev when modprobing dlm module and those are the udev events being triggered:
(k)rafaeldtinoco@clubionic01:~$ sudo udevadm monitor --kernel monitor will print the received events for: KERNEL - the kernel uevent KERNEL[10516.364250] add /module/dlm (module) KERNEL[10516.364425] add /kernel/slab/:0000496 (slab) KERNEL[10516.364579] add /kernel/slab/:0000312 (slab) KERNEL[10516.364730] add /devices/virtual/misc/dlm-control (misc) KERNEL[10516.364849] add /devices/virtual/misc/dlm-monitor (misc) KERNEL[10516.364980] add /devices/virtual/misc/dlm_plock (misc) and when being removed: KERNEL[10713.488367] remove /devices/virtual/misc/dlm_plock (misc) KERNEL[10713.488465] remove /devices/virtual/misc/dlm-control (misc) KERNEL[10713.488539] remove /devices/virtual/misc/dlm-monitor (misc) KERNEL[10713.488635] remove /kernel/slab/:0000496 (slab) KERNEL[10713.488692] remove /kernel/slab/:0000312 (slab) KERNEL[10713.488825] remove /module/dlm (module) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1866392 Title: [bionic] dlm_controld won't start due to missing device files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dlm/+bug/1866392/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs