I had to add the /run/mysql/ directory to apparmor after upgrading to Ubuntu 12.04.3 LTS with 5.5.34-0ubuntu0.12.04.1
-- /run/mysqld/ r, /run/mysqld/** rw, --
I had to add the /run/mysql/ directory to apparmor after upgrading to Ubuntu 12.04.3 LTS with 5.5.34- 0ubuntu0. 12.04.1
--
/run/mysqld/ r,
/run/mysqld/** rw,
--