[Bug 1166918] New: Docker exec causes Error response from daemon: Unsupported: Exec is not supported by the lxc driver

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1166918

            Bug ID: 1166918
           Summary: Docker exec causes Error response from daemon:
                    Unsupported: Exec is not supported by the lxc driver
           Product: Fedora EPEL
           Version: el6
         Component: docker-io
          Assignee: lsm5(a)fedoraproject.org
          Reporter: jltronson(a)directv.com
        QA Contact: extras-qa(a)fedoraproject.org
                CC: admiller(a)redhat.com, golang(a)lists.fedoraproject.org,
                    hushan.jia(a)gmail.com, jchaloup(a)redhat.com,
                    jperrin(a)centos.org, lsm5(a)fedoraproject.org,
                    mattdm(a)redhat.com, mgoldman(a)redhat.com,
                    miminar(a)redhat.com, s(a)shk.io, thrcka(a)redhat.com,
                    vbatts(a)redhat.com



Description of problem:
When I attempt to run Docker exec on a running container I get the following
error:

Error response from daemon: Unsupported: Exec is not supported by the lxc
driver


Version-Release number of selected component (if applicable):
# uname -a
Linux 2.6.32-504.el6.x86_64 #1 SMP Tue Oct 14 01:47:47 PDT 2014 x86_64 x86_64
x86_64 GNU/Linux

# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.6 (Santiago)

# docker version
Client version: 1.3.1
Client API version: 1.15
Go version (client): go1.3.3
Git commit (client): 4e9bbfa
OS/Arch (client): linux/amd64
Server version: 1.3.1
Server API version: 1.15
Go version (server): go1.3.3
Git commit (server): 4e9bbfa


How reproducible: 100%


Steps to Reproduce:
1. $ docker exec -it my_docker_image bash

Actual results:
Error response from daemon: Unsupported: Exec is not supported by the lxc
driver

Expected results:
The expected result is that I get a bash prompt.

Additional info:

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