Comment # 3 on bug 1202534 from Alessandro Sturniolo

I've encountered the same issue after I've updated my workstation when I come
back from my vacations, so I don't know, effectively, when this issue has begin
to appear. My previuos updates are dated July 29, and previously the issue is
not present.

Now, when I shutdown my workstation, some times it shutdown in seconds, some
times in minutes, and some times I have to force power off with magic sysrq
keys. It not seems related to the uptime of the workstation. I've encountered
this issue also after only a few minutes of uptime.

Every times that the workstation doesn't shut down immediately, I can see a
flood of messages on the Virtual Terminal 10 (CTRL+Alt+F10).
The message is "block device autoloading is deprecated and will be removed"
repeated continuosly.

My setup have some software RAID-1 (on SSD disks) and RAID-6 disks (on
mechanical disks), some NFS shares mounted via autofs, some paths as /tmp,
/var/log, /var/cache, and others, binded from the SSD to the HDD to preserve
SSD lifespan, Docker, VirtualBox, and a lot of other services, that I don't
know if they can be relevants or not.