Traceback (most recent call last):
  File "/usr/sbin/update-apt-xapian-index", line 102, in <module>
    indexer.incrementalUpdate()
  File "/usr/lib/pymodules/python2.6/axi/indexer.py", line 635, in incrementalUpdate
    self.updateIndex(dbpath)
  File "/usr/lib/pymodules/python2.6/axi/indexer.py", line 626, in updateIndex
    db.flush()
DatabaseError: Modifications failed (DatabaseOpeningError: Couldn't open base /var/lib/apt-xapian-index/index.1/postlist.tmp to write: No such file or directory), and cannot set consistent table revision numbers: Couldn't reread base B