I saw the same thing this morning.
Ubuntu 14.04.2 LTS Kernel linux-image-3.16.0-30-generic libapache2-mod-apparmor 2.8.95~2430-0ubuntu5.1 apache2-mpm-prefork 2.4.7-1ubuntu4.4
Attached is first the warning (like in bug 1447530), and then the Oops, 9 seconds later.
I saw the same thing this morning.
Ubuntu 14.04.2 LTS 3.16.0- 30-generic mod-apparmor 2.8.95~ 2430-0ubuntu5. 1
Kernel linux-image-
libapache2-
apache2-mpm-prefork 2.4.7-1ubuntu4.4
Attached is first the warning (like in bug 1447530), and then the Oops, 9 seconds later.