This happened to me as well, and I believe the reason was due to Likewise-Open AD integration with a custom home directory (%H/%D/%U instead of the default %H/likewise-open/%D/%U).
I ran "sudo dpkg-reconfigure apparmor" and then specified "/home/DOMAINNAME/" as an additional homedir. I no longer see apparmor messages when I run "dmesg".
This happened to me as well, and I believe the reason was due to Likewise-Open AD integration with a custom home directory (%H/%D/%U instead of the default %H/likewise- open/%D/ %U).
I ran "sudo dpkg-reconfigure apparmor" and then specified "/home/DOMAINNAME/" as an additional homedir. I no longer see apparmor messages when I run "dmesg".