I’ve had Systemd completely stop responding before on numerous occasions on centos 7. As in can’t reboot or hangs rebooting or all commands hang.

Only recourse has been to reboot the instance from AWS dashboard.

I can’t get to the bottom of it because the tools don’t work when it’s down and there’s nothing there when it comes back up. I am not enjoying boiling to death in this pot of shit.

And then there’s the situation where it just won’t boot. I just fire up a new instance then because it’s easier than debugging it.