This bug was fixed in the package libvirt - 1.2.21-2ubuntu7
--------------- libvirt (1.2.21-2ubuntu7) xenial; urgency=medium
* d/apparmor/libvirt-qemu: silence denial to shm/lttng file since shm mountpoint has moved (LP: #1529319)
-- Serge Hallyn <email address hidden> Mon, 11 Jan 2016 11:55:28 -0800
This bug was fixed in the package libvirt - 1.2.21-2ubuntu7
---------------
libvirt (1.2.21-2ubuntu7) xenial; urgency=medium
* d/apparmor/ libvirt- qemu: silence denial to shm/lttng file since shm
mountpoint has moved (LP: #1529319)
-- Serge Hallyn <email address hidden> Mon, 11 Jan 2016 11:55:28 -0800