Open Stack

Hi All,

Here's the stacktrace log:

2013-08-29 15:12:29.515 WARNING nova.compute.manager
[req-31944080-1a33-4679-98ce-af36e3660679 ae0f00ede33f42d9a12385b2c2ce8c0d
57d53e1dcff540b6aeaf0d6fd60be7ab] [instance:
038dbba7-534b-4c03-8914-a830c424ce21] Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line
1718, in reboot_instance
    bad_volumes_callback=bad_volumes_callback)
  File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line
1295, in reboot
    block_device_info)
  File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line
1371, in _hard_reboot
    self._create_images_and_backing(context, instance, disk_info_json)
  File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line
3248, in _create_images_and_backing
    cache_name = os.path.basename(info['backing_file'])
  File "/usr/lib/python2.7/posixpath.py", line 121, in basename
    i = p.rfind('/') + 1
AttributeError: 'NoneType' object has no attribute 'rfind'

2013-08-29 15:12:29.516 ERROR nova.compute.manager
[req-31944080-1a33-4679-98ce-af36e3660679 ae0f00ede33f42d9a12385b2c2ce8c0d
57d53e1dcff540b6aeaf0d6fd60be7ab] [instance:
038dbba7-534b-4c03-8914-a830c424ce21] Cannot reboot instance: 'NoneType'
object has no attribute 'rfind'


Looking for any help.
Regards.
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