Hung on reboot/shutdown

[Anton Byshovets]

Hello.
I have a problem with reboot/shutdown. If i try to reboot or shutdown
(reboot, shutdown -r now, systemctl reboot --force, sync && reboot -f,
etc ...) the system was hang. I tried to catch this bug in logs, but
have nothing.
Can I get an advice, how can I debug and solve this problem? Thanx.