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

Wed Aug 27 06:39:59 PDT 2014

Hi Javier,

I have upgraded to latest libvirt version also applied patch to the file
still getting same error. Do I need to restart any other service?

*Restarted Service* :

sudo service apparmor restart
sudo service libvirt-bin restart

libvirtd --version
libvirtd (libvirt) 1.2.7

Added patch to /etc/apparmor.d/abstractions/libvirt-qemu

  # this is needed with libcap-ng support, however it breaks a lot of things
  # atm, so just silence the denial until libcap-ng works right. LP: #522845
  deny capability setpcap,

  network inet stream,
  network inet6 stream,

  /dev/net/tun rw,
  /dev/tap* rw,
  /dev/kvm rw,
  /dev/ptmx rw,
  /dev/kqemu rw,
  /dev/vhost-net rw,
  @{PROC}/*/status r,
  owner @{PROC}/*/auxv r,
  @{PROC}/sys/vm/overcommit_memory r,

  # For hostdev access. The actual devices will be added dynamically
  /sys/bus/usb/devices/ r,
  /sys/devices/**/usb[0-9]*/** r,

  # WARNING: this gives the guest direct access to host hardware and
specific

Regards
Kiran Ranjane

On Wed, Aug 27, 2014 at 6:36 PM, Javier Fontan <jfontan at opennebula.org>
wrote:

> 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
>
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