This does indeed seem to be the problem. The current labeling done by apparmor is not enough to avoid needing the mediate_deleted flag on the lxc profiles. Adding the flag will force apparmor to do a name lookup for entries that have been deleted (the name can be reliably be reconstructed), instead of using the default of the cached file label.
I have opened Bug #970647 for the failure to log rejects due to the deleted entry logic.
This does indeed seem to be the problem. The current labeling done by apparmor is not enough to avoid needing the mediate_deleted flag on the lxc profiles. Adding the flag will force apparmor to do a name lookup for entries that have been deleted (the name can be reliably be reconstructed), instead of using the default of the cached file label.
I have opened Bug #970647 for the failure to log rejects due to the deleted entry logic.