title: docker on ubuntu 16.04 error when killing container
body: <p>I can't kill or stop any docker container. I've allowed non-privileged users to run Docker commands. And <code>docker run hello-world</code> works fine.
  But I can't stop any other container.</p>
  
  <p>I got following:</p>
  
  <pre><code>$ docker stop 59e3b815d1dc
  Error response from daemon: cannot stop container: 59e3b815d1dc: 
  Cannot kill container 59e3b815d1dcf2d8c8bcd3dd641c3c033b83ac68ea2f0257a32a76468af7374c: 
  unknown error after kill: docker-runc did not terminate sucessfully: 
  container_linux.go:393: signaling init process caused "permission denied"
  : unknown
  </code></pre>
  
  <p>The same error with sudo. Meanwhile, all containers run successfully, but to stop them is possible only a full reboot of the system. </p>
  
  <p>Docker compose example:
      # Use postgres/example user/password credentials
      version: '3.1'</p>
  
  <pre><code>services:
  
    db:
      image: postgres
      restart: always
      environment:
        POSTGRES_PASSWORD: example
  
    adminer:
      image: adminer
      restart: always
      ports:
        - 8080:8080
  </code></pre>
  
  <p>Docker info:</p>
  
  <pre><code>$ docker info
  Containers: 7
   Running: 2
   Paused: 0
   Stopped: 5
  Images: 10
  Server Version: 17.12.1-ce
  Storage Driver: overlay2
   Backing Filesystem: extfs
   Supports d_type: true
   Native Overlay Diff: true
  Logging Driver: json-file
  Cgroup Driver: cgroupfs
  Plugins:
   Volume: local
   Network: bridge host macvlan null overlay
   Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
  Swarm: inactive
  Runtimes: runc
  Default Runtime: runc
  Init Binary: docker-init
  containerd version: 9b55aab90508bd389d7654c4baf173a981477d55
  runc version: 9f9c96235cc97674e935002fc3d78361b696a69e
  init version: 949e6fa
  Security Options:
   apparmor
   seccomp
    Profile: default
  Kernel Version: 4.4.0-116-generic
  Operating System: Ubuntu 16.04.4 LTS
  OSType: linux
  Architecture: x86_64
  CPUs: 4
  Total Memory: 11.61GiB
  Name: peter-pen
  ID: P6FS:C76H:WIAO:LCWC:TCHT:JEYB:6W3M:HXYD:S4E2:KTUZ:2T3Q:3GPI
  Docker Root Dir: /var/lib/docker
  Debug Mode (client): false
  Debug Mode (server): false
  Registry: https://index.docker.io/v1/
  Labels:
  Experimental: false
  Insecure Registries:
   127.0.0.0/8
  Live Restore Enabled: false
  
  WARNING: No swap limit support
  </code></pre>