[Zope] ZODB Problems

[Dennis Allison]

Zope 2.7.3
Python 2.3.4
ZODB 3.2.4 (as released with Python 2.7.3)
ZMySQLDA 2.0.9

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2004-11-23T08:22:29 ERROR(200) ZODB A storage error occured during object
abort. This shouldn't happen.
Traceback (most recent call last):
  File "/usr/local/src/zope/Zope2.7/lib/python/ZODB/Transaction.py", line
412, in _commit_error
    j.tpc_abort(self) # This should never fail
  File "/usr/local/src/zope/Zope2.7/lib/python/Shared/DC/ZRDB/TM.py", line
63, in abort
    try: self._abort()
  File "/opt/zope/zproducts/standard/ZMySQLDA/db.py", line 405, in _abort
    self._tlock.release()
error: release unlocked lock
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I'm seeing this fairly frequently in the event.log.  Any hint as to what
might be causing it?