Subscribing ubuntu-security to have an opinion on whether apparmor could be the cause of the hang (as dhcpd ships an apparmor profile and the reporter said a similar hang happens when upgrading apparmor).
Subscribing ubuntu-security to have an opinion on whether apparmor could be the cause of the hang (as dhcpd ships an apparmor profile and the reporter said a similar hang happens when upgrading apparmor).