Jan 23 19:13:49 dev-ramen7 libvirtd[5901]: libvirt version: 1.3.1, package: 1ubuntu10.6 (Christian Ehrhardt <christian.ehrhardt@canonical.com> Tue, 22 Nov 20
Jan 23 19:13:49 dev-ramen7 libvirtd[5901]: hostname: ramen7.dev.saucelabs.net
Jan 23 19:13:49 dev-ramen7 libvirtd[5901]: internal error: Child process (LIBVIRT_LOG_OUTPUTS=3:stderr /usr/lib/libvirt/virt-aa-helper -p 0 -c -u libvirt-46d
                                           2017-01-24 03:13:49.111+0000: 7759: info : hostname: ramen7.dev.saucelabs.net
                                           2017-01-24 03:13:49.111+0000: 7759: error : virPCIDeviceNew:1586 : internal error: dev->name buffer overflow: 83ef
                                           virt-aa-helper: error: /var/local/mount/oshi103046/mnt
                                           virt-aa-helper: error: could not find realpath for disk
                                           virt-aa-helper: error: invalid VM definition
Jan 23 19:13:49 dev-ramen7 libvirtd[5901]: internal error: cannot load AppArmor profile 'libvirt-46d39898-9b18-4d12-8762-1f09c6d2c0a9'
Jan 23 19:21:20 dev-ramen7 libvirtd[5901]: internal error: Child process (LIBVIRT_LOG_OUTPUTS=3:stderr /usr/lib/libvirt/virt-aa-helper -p 0 -c -u libvirt-7d6
                                           2017-01-24 03:21:20.122+0000: 10078: info : hostname: ramen7.dev.saucelabs.net
                                           2017-01-24 03:21:20.122+0000: 10078: error : virPCIDeviceNew:1586 : internal error: dev->name buffer overflow: d0b
                                           virt-aa-helper: error: /var/local/mount/oshi103044/mnt
                                           virt-aa-helper: error: could not find realpath for disk
                                           virt-aa-helper: error: invalid VM definition
Jan 23 19:21:20 dev-ramen7 libvirtd[5901]: internal error: cannot load AppArmor profile 'libvirt-7d6962d2-7c47-4081-ab68-3f66a8a89013'
Jan 23 19:21:58 dev-ramen7 libvirtd[5901]: internal error: Child process (LIBVIRT_LOG_OUTPUTS=3:stderr /usr/lib/libvirt/virt-aa-helper -p 0 -c -u libvirt-e2a
                                           2017-01-24 03:21:58.616+0000: 10104: info : hostname: ramen7.dev.saucelabs.net
                                           2017-01-24 03:21:58.616+0000: 10104: error : virPCIDeviceNew:1586 : internal error: dev->name buffer overflow: 58c
                                           virt-aa-helper: error: /var/local/mount/oshi103051/mnt
                                           virt-aa-helper: error: could not find realpath for disk
                                           virt-aa-helper: error: invalid VM definition
Jan 23 19:21:58 dev-ramen7 libvirtd[5901]: internal error: cannot load AppArmor profile 'libvirt-e2a0cb7f-e329-4725-8ade-a6f6eea5f8ca'



App Armor profile:
root@dev-ramen7:~# cat /etc/apparmor.d/libvirt/TEMPLATE
#
# This profile is for the domain whose UUID matches this file.
#

#include <tunables/global>

profile LIBVIRT_TEMPLATE {
  #include <abstractions/libvirt-qemu>
  signal (receive),
  "/mnt/album/**/*" r,
}


/var/log/syslog
Jan 23 09:12:20 ramen7 kernel: [ 1650.123311] audit: type=1400 audit(1485191540.666:21): apparmor="DENIED" operation="getattr" info="Failed name lookup - disconnected path" error=-13 profile="/usr/lib/libvirt/virt-aa-helper" name="rw" pid=5092 comm="virt-aa-helper" requested_mask="r" denied_mask="r" fsuid=0 ouid=999

Jan 23 09:12:20 ramen7 libvirtd[4481]: internal error: cannot load AppArmor profile 'libvirt-d41f4da9-366c-411e-9914-23406ea456e0'                          =
Jan 23 09:12:20 ramen7 xenial_noded.sh[4339]: dhcp host: {'ip': '10.89.103.51', 'libvirt: Security Driver error : internal error: cannot load AppArmor profile 'libvirt-d41f4da9-366c-411e-9914-23406ea456e0'