[one-users] Error while hot adding virtio nic model to VM

[Javier Fontan]

It seems to be a bug in libvirt from Ubuntu 14.04. There is a fixed
pakage in the trusty-proposed repo. You can try adding the
ubuntu-proposed repo and upgrading libvirt or try applying this patch

https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1322568/comments/3

The bug report is here:

https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1322568

On Wed, Aug 27, 2014 at 2:51 PM, kiran ranjane <kiran.ranjane at gmail.com> wrote:
> Yes, it made libvirt unusable and had to install apparmor it again.
>
> Tried again on a linux VM got the same error :
>
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: Successfully execute network driver
> operation: pre.
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: Command execution fail:
> /var/tmp/one/vmm/kvm/attach_nic 'one-30' '02:00:c0:a8:7a:13' 'virbr0'
> 'virtio' 'dummy' 30 kvm-node
> Wed Aug 27 18:20:33 2014 [Z0][VMM][E]: attach_nic: Command "virsh --connect
> qemu:///system attach-device one-30 <(
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: cat <<EOT
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: <interface type='bridge'>
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: <source bridge='virbr0'/>
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: <mac address='02:00:c0:a8:7a:13'/>
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: <model type='virtio'/>
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]:
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: </interface>
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: EOT
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: )" failed: error: Failed to attach
> device from /dev/fd/63
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: error: internal error: unable to
> execute QEMU command 'getfd': No file descriptor supplied via SCM_RIGHTS
> Wed Aug 27 18:20:33 2014 [Z0][VMM][E]: Could not attach () to one-30
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: ExitCode: 1
> Wed Aug 27 18:20:33 2014 [Z0][VMM][I]: Failed to execute virtualization
> driver operation: attach_nic.
> Wed Aug 27 18:20:33 2014 [Z0][VMM][E]: Error attaching new VM NIC: Could not
> attach () to one-30
>
>
> On Wed, Aug 27, 2014 at 6:12 PM, Javier Fontan <jfontan at opennebula.org>
> wrote:
>>
>> You can try but I think disabling apparmor will make libvirt unusable.
>> I'm not sure about it.
>>
>> On Wed, Aug 27, 2014 at 2:20 PM, kiran ranjane <kiran.ranjane at gmail.com>
>> wrote:
>> > Hi Javier,
>> >
>> > I am using Ubuntu 14.04 as host OS, Do you want me to disable apparmor?
>> >
>> > Regards
>> > Kiran Ranjane
>> >
>> >
>> > On Wed, Aug 27, 2014 at 5:44 PM, Javier Fontan <jfontan at opennebula.org>
>> > wrote:
>> >>
>> >> There seems to be a problem related with libvirt and selinux. Can you
>> >> try disabling SElinux and doing the attach again? Virtio nic attach is
>> >> supported.
>> >>
>> >> On Fri, Aug 22, 2014 at 2:01 PM, kiran ranjane
>> >> <kiran.ranjane at gmail.com>
>> >> wrote:
>> >> > Hello Everyone,
>> >> >
>> >> > I am getting error while hot plugging virtio nic model to VM
>> >> > One 4.8
>> >> > Host - Ubuntu 14.04
>> >> > VM -  Windows 2008 R2 (Virtio Drivers already install in the VM)
>> >> >
>> >> >
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: Command execution fail:
>> >> > /var/tmp/one/vmm/kvm/attach_nic 'one-15' '02:00:c0:a8:7a:08' 'virbr0'
>> >> > 'virtio' 'dummy' 15 kvm-node
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][E]: attach_nic: Command "virsh
>> >> > --connect
>> >> > qemu:///system attach-device one-15 <(
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: cat <<EOT
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: <interface type='bridge'>
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: <source bridge='virbr0'/>
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: <mac
>> >> > address='02:00:c0:a8:7a:08'/>
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: <model type='virtio'/>
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]:
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: </interface>
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: EOT
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: )" failed: error: Failed to
>> >> > attach
>> >> > device from /dev/fd/63
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: error: internal error: unable
>> >> > to
>> >> > execute QEMU command 'getfd': No file descriptor supplied via
>> >> > SCM_RIGHTS
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][E]: Could not attach () to one-15
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: ExitCode: 1
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][I]: Failed to execute
>> >> > virtualization
>> >> > driver operation: attach_nic.
>> >> > Fri Aug 22 17:22:41 2014 [Z0][VMM][E]: Error attaching new VM NIC:
>> >> > Could
>> >> > not
>> >> > attach () to one-15
>> >> >
>> >> > Regards
>> >> > Kiran Ranjane
>> >> >
>> >> > _______________________________________________
>> >> > Users mailing list
>> >> > Users at lists.opennebula.org
>> >> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>> >> >
>> >>
>> >>
>> >>
>> >> --
>> >> Javier Fontán Muiños
>> >> Developer
>> >> OpenNebula - Flexible Enterprise Cloud Made Simple
>> >> www.OpenNebula.org | @OpenNebula | github.com/jfontan
>> >
>> >
>>
>>
>>
>> --
>> Javier Fontán Muiños
>> Developer
>> OpenNebula - Flexible Enterprise Cloud Made Simple
>> www.OpenNebula.org | @OpenNebula | github.com/jfontan
>
>



-- 
Javier Fontán Muiños
Developer
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org | @OpenNebula | github.com/jfontan