If you have encrypted your system partition, you have an unexpected and potentially serious vulnerability in your system.
http://hmarco.org/bugs/CVE-2016-4484/CV ... l.html#fix
Curiously enough, the system partition is the only partition on my system that is NOT encrypted: I consider disaster recovery to be too difficult if it is encrypted. To avoid information leakage, I symlink those things that are sensitive (such as all of /var and /tmp) to other volumes that are encrypted.