I believe I have finally tracked this one down. It only occurs when an fd is shared between 9 or more separate profile domains and one of those profiles is removed. The removal part can happen during the apparmor reload phase, if a profile was renamed which is more likely on touch and snappy.
Note: there is a new test kernel using +jj61 at http://people.canonical.com/~jj/linux+jj/ This should be the final fix for this issue -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1579135 Title: AppArmor profile reloading causes an intermittent kernel BUG To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1579135/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
