After installing Ubuntu, the Host is crashing, what can I do?

Question

Docker

Installed: Ubuntu 16.04.2 LTS xenial (32 ram)
The server is rented from Hetzner.
I asked to connect a remote console to see what the problem was, they answered that the server did not respond to any commands, it was impossible to connect.
I looked: I /var/log/syslogdidn’t see anything strange, the logs just break off, as if someone had pulled it out of the socket.
After restarting the server, everything works fine for several hours, it can work for several days, there is no pattern.
Installed 4 completely non-resource-intensive containers with games. There is a lot of free memory, cpu is not overloaded.
Tell me where to dig?

Answer 1

According to the kernel log it looks like https : //bugs.launchpad.net/ubuntu/+source/linux/+b... /moby/issues/20569)