Comment 3 for bug 1788922

FileNotFoundError is the py3 version of this failure, this is the py27 version:

OSError: [Errno 2] No such file or directory: '/home/zuul/src/git.openstack.org/openstack/nova/instances/.directio.test'

http://logs.openstack.org/33/526833/11/gate/nova-tox-functional/8bbb8e3/testr_results.html.gz