- **Known issues**

        - Kernel crash with Aufs storage driver on Debian Jessie
          ([#27885](https://github.com/kubernetes/kubernetes/issues/27885)).
          The issue can be identified by using the node problem detector.

        - File descriptor leak on init/control.
          ([#275](https://github.com/containerd/containerd/issues/275))

        - Additional memory overhead per container.