Description
Just installed docker and was trying to run the docker/whalesay image. Ran into the following error:

docker run docker/whalesay
docker: Error response from daemon: mkdir /var/lib/docker/overlay/a721883eda8a130b2f6744e89997351689e620c0d8680fa2c119dfa8dff59e74-init/merged/dev/shm: invalid argument.
See 'docker run --help'.

I've seen some defects which talk about overlay. I really don't understand what this means and neither does it explicitly state how to fix the problem. I'm new to using docker and gitHub so clear explanations would be greatly appreciated.

Output of docker version:

docker version
Client:
Version: 17.03.1-ce
API version: 1.27
Go version: go1.7.5
Git commit: c6d412e
Built: Mon Mar 27 17:05:44 2017
OS/Arch: linux/amd64

Server:
Version: 17.03.1-ce
API version: 1.27 (minimum version 1.12)
Go version: go1.7.5
Git commit: c6d412e
Built: Mon Mar 27 17:05:44 2017
OS/Arch: linux/amd64
Experimental: false

Output of docker info:
[root@ggnlabvm-juper5 ~]# docker info
Containers: 2
Running: 0
Paused: 0
Stopped: 2
Images: 2
Server Version: 17.03.1-ce
Storage Driver: overlay
Backing Filesystem: xfs
Supports d_type: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 4ab9917febca54791c5f071a9d1f404867857fcc
runc version: 54296cf40ad8143b62dbcaa1d90e520a2136ddfe
init version: 949e6fa
Security Options:
seccomp
Profile: default
Kernel Version: 3.10.0-229.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 3.703 GiB
Name: ggnlabvm-juper5
ID: Q5J3:Z4ZJ:U54L:FKP6:RQGH:EHE5:KK62:YHDC:BMTY:DSZR:O4X2:QEAM
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false