Docker save: Error response from daemon: unexpected EOF

When I try to save a docker image, I get an error: Error response from daemon: unexpected EOF.
This does not happen wtih busybox and a couple of other very small images, but I cannot save ubuntu, which is hardly bigger.
Command: docker save -o test.tar busybox

I got 24Gb available on disk.

 docker version
Client:
 Version:      1.10.3
 API version:  1.22
 Go version:   go1.5.3
 Git commit:   20f81dd
 Built:        Thu Mar 10 15:54:52 2016
 OS/Arch:      linux/amd64

Server:
 Version:      1.10.3
 API version:  1.22
 Go version:   go1.5.3
 Git commit:   20f81dd
 Built:        Thu Mar 10 15:54:52 2016
 OS/Arch:      linux/amd64
docker info
Containers: 44
 Running: 11
 Paused: 0
 Stopped: 33
Images: 691
Server Version: 1.10.3
Storage Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 863
 Dirperm1 Supported: false
Execution Driver: native-0.2
Logging Driver: json-file
Plugins: 
 Volume: local
 Network: bridge null host
Kernel Version: 3.13.0-83-generic
Operating System: Ubuntu 14.04.4 LTS
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 3.794 GiB
Name: chris-HP-Compaq-dc7900-Convertible-Minitower
ID: VU53:6ZWB:OYQE:3EMH:RJ2X:MQ43:JE33:EW5G:FTCM:CVW5:OGQI:ZNKP
WARNING: No swap limit support

I removed /var/lib/docker/repositories-aufs (one of the suggestions), but that didn’t help (it was not recreated, so not in use anymore).

Any suggestions?

What is the size of the image? Does it exceed the available disk space?