Error deploying a VM

 2017-01-31 15:26:47.919 1069 ERROR root [req-27c93056-721f-4e2f-8255-d1ca84e0a562 697777bc8c7643339b4d7bb8690f9304 e22dc96974c94441a747ee3f851a7f3f - - -] Original exception being dropped: ['Traceback (most recent call last):\n', '  File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/guest.py", line 139, in launch\n    return self._domain.createWithFlags(flags)\n', '  File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 186, in doit\n    result = proxy_call(self._autowrap, f, *args, **kwargs)\n', '  File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 144, in proxy_call\n    rv = execute(f, *args, **kwargs)\n', '  File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 125, in execute\n    six.reraise(c, e, tb)\n', '  File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 83, in tworker\n    rv = meth(*args, **kwargs)\n', '  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1065, in createWithFlags\n    if ret == -1: raise libvirtError (\'virDomainCreateWithFlags() failed\', dom=self)\n', 'libvirtError: End of file while reading data: Input/output error\n']
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [req-27c93056-721f-4e2f-8255-d1ca84e0a562 697777bc8c7643339b4d7bb8690f9304 e22dc96974c94441a747ee3f851a7f3f - - -] [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401] Instance failed to spawn
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401] Traceback (most recent call last):
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2078, in _build_resources
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]     yield resources
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1920, in _build_and_run_instance
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]     block_device_info=block_device_info)
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 2596, in spawn
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]     post_xml_callback=gen_confdrive)
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 4836, in _create_domain_and_network
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]     post_xml_callback=post_xml_callback)
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 4765, in _create_domain
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]     guest.launch(pause=pause)
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/guest.py", line 144, in launch
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]     self._encoded_xml, errors='ignore')
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]   File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/guest.py", line 111, in _encoded_xml
2017-01-31 15:26:47.920 1069 ERROR nova.compute.manager [instance: 8252d6de-4ecc-4900-baad-be0daf5f9401]     return encodeutils.safe_decode(self._domain.XMLDesc(0))
2017-01-31 15:26:47.920 1069 ERROR nova ...