Traceback (most recent call last):
  File "/usr/bin/unattended-upgrade", line 127, in <module>
    cache = MyCache()
  File "/usr/bin/unattended-upgrade", line 21, in __init__
    apt.Cache.__init__(self)
  File "/usr/lib/python2.5/site-packages/apt/cache.py", line 39, in __init__
    self.open(progress)
  File "/usr/lib/python2.5/site-packages/apt/cache.py", line 52, in open
    self._cache = apt_pkg.GetCache(progress)
SystemError: E:Dynamic MMap ran out of room, E:Dynamic MMap ran out of room, E:Dynamic MMap ran out of room, E:Error occurred while processing vlc-nox (NewVersion1), E:Problem with MergeList /var/lib/dpkg/status, E:The package lists or status file could not be parsed or opened.