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[ubuntu] Xen hang on shutdown

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http://ubuntuforums.org – Hi, I'm having an issue with Xen 4.2 running on Ubuntu 12.04. The install is an Ubuntu 12.04-x64 host with two Ubuntu 12.04-x64 guests and one Windows server 2008 R2 guest with the signed PV drivers. I'm using the XL toolkit. I'm suffering an issue where the machine gets stuck at the "Will now reboot" line when the host is rebooted while the guests are still running. If I shut all the guests down using "xl shutdown" the guests do terminate properly (after about 30 seconds). If I then do a reboot on the host, it completes cleanly. If I don't shutdown the guests (Hardware)

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Submitted by colm on 12/04/2012

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Hello everyone. I have this weird problem with D-BUS error messages and I wonder if anyone could help.

I am running Ubuntu 12.04.2 Desktop with VirtualBox 4.2.12 (host). On host I am running two Ubuntu 12.04.2 Server virtual machines (guests).

I have installed Ubuntu server 12.04 as a KVM host, and created an Ubuntu guest that is also running Ubuntu server 12.04. The servers are in the AST time zone which is UTC + 3 hours.

I will be setting up KVM guests on a computer of mine soon. I plan to run Ubuntu 12.04.1 on the host. But I can switch to Fedora 17 if necessary (comfortable with both RH and Debian types of distros). I plan to use the following layout for KVM guests:

host: SSD + LVM + ext4 guests: LVM + ext4; each guest gets a LVM logical volume from the host

So, the LVM is nested in this scenario.

Just set up kvm on my server and have three guests: window 7, ubuntu 12.04.1, and Haiku. Since I set up kvm two days ago, my server has shutdown on its own 4 times. I watched the server as I connected to a guest and I noticed that an error appears "kvm: 1908: cpu unhandled rdmsr: 0xc0010001.

on both host and guest running CentOS 6.3 with KVM/Qemu virtualization, I have the following scenarios:

"virsh shutdown kvm1" did not shutdown at all. virsh lists guest as running. "service libvirt-guests stop" did not shutdown in 280 seconds (shutdown_timeout=300. on_shutdown=shutdown) "shutdown now" from within guest, guest becomes unreachable.

I'm setting up a development machine which runs Ubuntu 12.04 and KVM for virtualization. I have a guest running Ubuntu 12.04 which can be accessed from the host via its IP address which is assigned by libvirt.

I've set up Xen server under Linux with several guests running, and all was well. After some time I've noticed the clock on the server drifted away, so I installed 'ntpd', and the clock was back to normal. However, my Xen guests still had the old clock. Is there a way for guests to always have the same clock value as on the server?

The main aim is the CentOS 6.3 x86_64 host without eth interfaces (console management only) with 2 CentOS i386 guests. One of guests access physical eth-interface as own pci device. The guests have... [by sandrey74]

I do regular backups of my HyperV host system, including the folders with the hyper v guests.

Should I also do a backup of the guests seperately (e.g. from within the guest os itself) ?