My vps at RamNode does this as well. It has ever since I moved there in
2015. It doesn't seem to cause any harm. I wasn't curious enough to run it
down to a root cause but if someone else knows, I'm interested in the story.
> I see the following characters in dmesg.
> "B\M-d\M^??B\M-d\M^??B\M-d\M^??B\M-d\M^??" - continues for several lines.
> This appears just before the initial text "OpenBSD 6.0 (GENERIC)"
> I am running OpenBSD 6.1 on a VM. I havent seen this on the VM or my local
> machine before.
> The system is running fine and there is no problem using it. But I want to
> check if others have seen such characters in their dmesg and if it is
> something to worry about.