root@dev-ramen7:~# systemctl status libvirtd.service;
● libvirt-bin.service - Virtualization daemon
   Loaded: loaded (/lib/systemd/system/libvirt-bin.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2017-01-24 08:20:52 PST; 3min 36s ago
     Docs: man:libvirtd(8)
           http://libvirt.org
 Main PID: 5334 (libvirtd)
    Tasks: 16
   Memory: 14.4M
      CPU: 1.029s
   CGroup: /system.slice/libvirt-bin.service
           └─5334 /usr/sbin/libvirtd

Jan 24 08:20:52 dev-ramen7 systemd[1]: Starting Virtualization daemon...
Jan 24 08:20:52 dev-ramen7 systemd[1]: Started Virtualization daemon.
Jan 24 08:21:13 dev-ramen7 libvirtd[5334]: libvirt version: 1.3.1, package: 1ubuntu10.6 (Christian Ehrhardt <christian.ehrhardt@canonical.com> Tue, 22 Nov 2016 09:39:18 +0100)
Jan 24 08:21:13 dev-ramen7 libvirtd[5334]: hostname: ramen7.dev.saucelabs.net
Jan 24 08:21:13 dev-ramen7 libvirtd[5334]: internal error: Child process (LIBVIRT_LOG_OUTPUTS=3:stderr /usr/lib/libvirt/virt-aa-helper -p 0 -c -u libvirt-4e2c907a-44f1-4616-b1dc-3a1b284627
                                           2017-01-24 16:21:13.883+0000: 5417: info : hostname: ramen7.dev.saucelabs.net
                                           2017-01-24 16:21:13.883+0000: 5417: error : virPCIDeviceNew:1586 : internal error: dev->name buffer overflow: a5aac250:5645:00.0
                                           virt-aa-helper: error: /var/local/mount/oshi103041/mnt
                                           virt-aa-helper: error: could not find realpath for disk
                                           virt-aa-helper: error: invalid VM definition
Jan 24 08:21:13 dev-ramen7 libvirtd[5334]: internal error: cannot load AppArmor profile 'libvirt-4e2c907a-44f1-4616-b1dc-3a1b28462792'