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I have a Server running Ubuntu 10.10 Server-Edition kvm, and libvirt (both ubuntu-native packages) HDD-Partitioning was done with LVM. Then I created some VMs with Virt-Manager and assigned LVM-Volumes to the VMs.

Now the VMs do not boot. Virt-Manager shows a CPU-Usage of 100% for this Guest and the VNC-Connection states

Booting from Hard Disk

The VM-specific logfiles do not show any abnormality only syslog shows a warning

warning : qemudParsePCIDeviceStrs:1422 : Unexpected exit status '1', qemu probably failed

What can I do to find the error?

4 Answers 4

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Can you try stopping AppArmor "sudo /etc/init.d/apparmor stop; sudo /etc/init.d/apparmor teardown"

then restarting the VM!

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  • this also didn't work. I found out, that creating new VMs is no problem. They run as they should. So I suspect Virt-Manager of having done something wrong with my old VM's. I used Virt-Manager to reorder the Disk-Positions and after that nothing worked anymore.
    – markus
    Jan 11, 2011 at 11:06
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You might want to try switching the disk type, e.g. from virtio to ide. You can virsh dumpxml > guestname.xml, edit the dump file to make the change, destroy and undefine the guest, then create from the edited dump file.

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  • As an aside, the guest logfiles have yet to provide me really helpful information when troubleshooting a qemu/kvm problem. This might just be me, but it's one of my few complaints w/ KVM.
    – nedm
    Jan 9, 2011 at 9:03
  • I already had the disk type set to SCSI instead of virtio.
    – markus
    Jan 9, 2011 at 9:07
  • I'd still switch it to IDE (or even to virtio) to see if it makes a difference. Also, how are the physical disks composing the LVM volumes connected? Are they SATA, running through a PCI/x SATA card by chance? That's one setup I've seen similar (though not identical) errors from.
    – nedm
    Jan 9, 2011 at 9:14
  • lspci | grep SATA shows me an Intel onboard SATA-Controller. My current config file: pastebin.com/K8DDtqi5
    – markus
    Jan 9, 2011 at 9:35
  • using virtio I get this error: "error: internal error process exited while connecting to monitor: PCI: devfn 24 not available for rtl8139, in use by virtio-blk-pci". using ide does not work at all
    – markus
    Jan 9, 2011 at 9:43
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Did you ever restart the server after installing libvirt-bin and/or kvm? I have no idea why, but it solved the problem in our case.

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  • Yes I did. But it didn't help.
    – markus
    Feb 17, 2011 at 10:12
  • I finally ended up creating a new config with VirtManager with the proper disk-order, setting the disk type to SCSI, reloaded the profile and now it works like a charme.
    – markus
    Feb 17, 2011 at 10:19
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I just had exacly same problem after increasing VM memory resources via virt-manager:

warning : qemudParsePCIDeviceStrs:1422 : Unexpected exit status '1'
qemu probably failed

sitting in my /var/log/messages.log after trying to start VM.
I could not start VM. Since:

sudo service libvirt-bin stop
sudo service libvirt-bin start

didn't work on Debian stable 64 I solved this issue with:

ps -ef | grep libvirtd
sudo kill -9 31416
sudo service libvirt-bin start
ps -ef | grep libvirtd

and then:

sudo virsh start SomeOS

I think this is related to inaccesible volume or VM disk image.

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