Linux – xen 4 on (hetzner) dedicated server freezes

dedicated-serverdeploymentlinuxvirtualizationxen

I have a lot of trouble trying to host xen 4 on my dedicated server. I first tried centos, it had only xen 3, but everything went amazingly smooth – I had win xp up & running in few minutes. However, I want to host windows server 2k8 r2 and it needs xen in a version at least 4.0.

I've tried debian and opensuse, both has xen 4 as packages, but both seems to be unstable. I don't know what exactly happens, but the server became unreachable during guest boot and every single dom0 reboot. The problem is, the panel my hoster (hetzner.de) has the option to do hw reset, but… it seems to stop working when it freezes. Each time that happens, I have to order a manual hw reset, and have to wait about half an hour for staff to react. It makes it completely impossible to find the issue 🙁 the staff usually responds with something like 'it was a black screen' or 'it was frozen'. Do you guys have any ideas how I could try to "debug" it? Or maybe any good xen replacement…?

KVM is above my budget (it's more expensive than a server itself…), and dc is way too far and probably I couldn't get there anyway…

I have completely no idea what else I could try or where to look for help. I feel so useless right now…

Best Answer

Quick question: what's your cpu? I just had a similar issue it was with xcp where it would hang and require a manual power off. Check in your bios in the processor section and see if c-state is enabled. If so, disable it and see if it fixes your issue.