KeyError in ipdevpoll interfaces plugin on devices that have no network interfaces

[Morten Brekkevold]

A customer is seeing the following traceback from an SNMP-enabled UPS under NAV 3.11.4:

[ERROR jobs.jobhandler] [inventory some-box.example.org] Plugin nav.ipdevpoll.plugins.interfaces.Interfaces(u'some-box.example.org') reported an unhandled failure
Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/twisted/internet/defer.py", line 397, in _continue
    self.unpause()
  File "/usr/lib/python2.6/dist-packages/twisted/internet/defer.py", line 363, in unpause
    self._runCallbacks()
  File "/usr/lib/python2.6/dist-packages/twisted/internet/defer.py", line 441, in _runCallbacks
    self.result = callback(self.result, *args, **kw)
  File "/usr/lib/python2.6/dist-packages/twisted/internet/defer.py", line 949, in gotResult
    _inlineCallbacks(r, g, deferred)
--- <exception caught here> ---
  File "/usr/lib/python2.6/dist-packages/twisted/internet/defer.py", line 893, in _inlineCallbacks
    result = g.send(result)
  File "/usr/lib/pymodules/python2.6/nav/ipdevpoll/plugins/interfaces.py", line 61, in handle
    shadows.Interface.add_sentinel(self.containers)
  File "/usr/lib/pymodules/python2.6/nav/ipdevpoll/shadows/interface.py", line 316, in add_sentinel
    containers[cls][cls.sentinel] = cls.sentinel
exceptions.KeyError: <class 'nav.ipdevpoll.shadows.interface.Interface'>

[Morten Brekkevold (mbrekkevold)]

fix here: http://nav.uninett.no/hg/stable/rev/2c491f4431c5