500 Error during PROPFIND

[cdaboo@…]

2007-06-20 05:08:40-0700 [-] [caldav-8010]  [AMP,client] PROPFIND /calendars/users/xxx/inbox/ HTTP/1.1
2007-06-20 05:08:40-0700 [-] [caldav-8010]  [AMP,client] Exception rendering:
2007-06-20 05:08:40-0700 [-] [caldav-8010]  [AMP,client] Unhandled Error
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	Traceback (most recent call last):
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	  File "/usr/share/caldavd/lib/python/twisted/web2/static.py", line 124, in renderHTTP
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	    d = maybeDeferred(super(StaticRenderMixin, self).renderHTTP, request)
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	  File "/usr/share/caldavd/lib/python/twisted/internet/defer.py", line 107, in maybeDeferred
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	    result = f(*args, **kw)
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	  File "/usr/share/caldavd/lib/python/twisted/web2/resource.py", line 88, in renderHTTP
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	    return method(request)
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	  File "/usr/share/caldavd/lib/python/twisted/internet/defer.py", line 677, in unwindGenerator
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	    return _deferGenerator(f(*args, **kwargs), Deferred())
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	--- <exception caught here> ---
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	  File "/usr/share/caldavd/lib/python/twisted/internet/defer.py", line 576, in _deferGenerator
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	    result = g.next()
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	  File "/usr/share/caldavd/lib/python/twisted/web2/dav/method/propfind.py", line 55, in http_PROPFIND
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	    x.getResult()
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	  File "/usr/share/caldavd/lib/python/twisted/internet/defer.py", line 555, in getResult
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	    self.result.raiseException()
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	  File "/usr/share/caldavd/lib/python/twisted/python/failure.py", line 303, in raiseException
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	    raise self.type, self.value, self.tb
2007-06-20 05:08:40-0700 [-] [caldav-8010] 	exceptions.TypeError: unpack non-sequence

Seen several times with several different users on production server. Typically on an inbox or calendar.

[wsanchez@…]

Not seeing this on current test servers.