[Zope] Pack Not Working

[Derek J. Balling]

Our Data.fs file is huge. We had a nightly process to pack it, but it 
seems that starting a few weeks ago, the nightly process now shows:

------
2004-11-16T03:00:09 ERROR(200) ZODB packing
Traceback (most recent call last):
   File "/opt/Zope-2.7/lib/python/ZODB/DB.py", line 528, in pack
     try: self._storage.pack(t,referencesf)
   File "/opt/Zope-2.7/lib/python/ZODB/FileStorage.py", line 1557, in pack
     opos = p.pack()
   File "/opt/Zope-2.7/lib/python/ZODB/fspack.py", line 698, in pack
     self.gc.findReachable()
   File "/opt/Zope-2.7/lib/python/ZODB/fspack.py", line 453, in 
findReachable
     self.buildPackIndex()
   File "/opt/Zope-2.7/lib/python/ZODB/fspack.py", line 494, in 
buildPackIndex
     u64(s), th.tlen)
NameError: global name 's' is not defined
------

.... that seems to be the "stock" code, and nothing has changed that I 
can see. Can anyone offer suggestions on what I might need to do to get 
this back up and packing? Since the database is up to 5.X GB, any 
assistance would be greatly appreciated. :-)

Cheers,
D