Hello, everybody.
Unfortunately, recently I have encountered a very annoying problem on Devuan Excalibur or Ceres. Just to note, this is the first time I started to use the testing or unstable branch. Recently, there was an upgrade, after which the system became awfully slow. To be honest, I installed virt-manager before and, because I was kinda angry about that, I accused the virt-manager or VMware services (which also became famous for me for slowing up the system). And also, when I boot up my system, I have an error related to iwlwifi with some dump. I don't really understand what does this error means, because my Wi-Fi is working well. And after that ill-fated upgrade, the same error repeated three times for some reason.
But, after I had reinstalled my distro to Devuan Daedalus and upgraded it to Excalibur, I got the same problem. And I installed nothing that will really slow up my system. So, I returned to Devuan Daedalus on my main computer.
But I also have a laptop working on Excalibur. I thought that it might happen only in Excalibur, so, I decided to try Ceres just for interest. I got the same thing.
After some investigation I made, I found that this is related to elogind and libpam-elogind. I removed them and installed dummy-logind instead and system stopped to be slow.
But that's not all.
It looks like the same packages caused another issue - polkit (or something else, but I think this is polkit) refused to work properly. For example, when I try to mount an another partition, it gives me an error like 'Not authorized to perform operation', also I'm not able to switch between Wi-Fi networks for the same reason (org.freedesktop.NetworkManager.network-control request failed: not authorized) and power off or reboot my computer from Xfce.
I would get by with reinstalling the system on my laptop to Devuan Stable, but I want to dig into this problem.

Has anyone encountered this really strange problem too? Or nobody use Devuan Excalibur or Ceres?