com.apple.wikid does not start. Generates 4000 error lines per 10 minutes

As of recently, without an up to now identifiable reason, wikid is failing to start. In system.log I see thousands of loglines per every few minutes, but I can't find what the real cause of the issue is or how to solve it. Does anybody have any idea?

The loglines I get every 8 seconds are:

1/27/12 9:04:21 PM com.apple.wikid[35954] /System/Library/Frameworks/Python.framework/V ersions/2.6/Extras/lib/python/zope/__init__.py:1: UserWarning: Module twisted was already imported from /usr/share/caldavd/lib/python/twisted/__init__.py, but /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python is being added to sys.path

1/27/12 9:04:21 PM com.apple.wikid[35954] __import__('pkg_resources').declare_namespace(__name__)

1/27/12 9:04:21 PM com.apple.wikid[35954] Traceback (most recent call last):

1/27/12 9:04:21 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/application/app.py", line 669, in parseOptions

1/27/12 9:04:21 PM com.apple.wikid[35954] usage.Options.parseOptions(self, options)

1/27/12 9:04:21 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/python/usage.py", line 226, in parseOptions

1/27/12 9:04:21 PM com.apple.wikid[35954] for (cmd, short, parser, doc) in self.subCommands:

1/27/12 9:04:21 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/application/app.py", line 679, in subCommands

1/27/12 9:04:21 PM com.apple.wikid[35954] for plug in plugins:

1/27/12 9:04:21 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/plugin.py", line 200, in getPlugins

1/27/12 9:04:21 PM com.apple.wikid[35954] allDropins = getCache(package)

1/27/12 9:04:21 PM com.apple.wikid[35954] --- <exception caught here> ---

1/27/12 9:04:21 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/plugin.py", line 179, in getCache

1/27/12 9:04:21 PM com.apple.wikid[35954] dropinPath.setContent(pickle.dumps(dropinDotCache))

1/27/12 9:04:21 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/python/filepath.py", line 640, in setContent

1/27/12 9:04:21 PM com.apple.wikid[35954] f = sib.open('w')

1/27/12 9:04:21 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/python/filepath.py", line 450, in open

1/27/12 9:04:21 PM com.apple.wikid[35954] return open(self.path, mode+'b')

1/27/12 9:04:21 PM com.apple.wikid[35954] exceptions.IOError: [Errno 13] Permission denied: '/usr/share/caldavd/lib/python/twisted/plugins/dropin.cache.new'

1/27/12 9:04:22 PM com.apple.wikid[35954] /usr/share/caldavd/lib/python/twisted/mail/sm tp.py:10: DeprecationWarning: the MimeWriter module is deprecated; use the email package instead

1/27/12 9:04:22 PM com.apple.wikid[35954] import MimeWriter, tempfile, rfc822

1/27/12 9:04:22 PM com.apple.wikid[35954] /usr/share/caldavd/lib/python/calendarserver/ tap/caldav.py:49: DeprecationWarning: mktap and related support modules are deprecated as of Twisted 8.0. Use Twisted Application Plugins with the 'twistd' command directly, as described in 'Writing a Twisted Application Plugin for twistd' chapter of the Developer Guide.

1/27/12 9:04:22 PM com.apple.wikid[35954] from twisted.scripts.mktap import getid

1/27/12 9:04:22 PM com.apple.wikid[35954] /usr/share/wikid/lib/python/twisted_overrides /microdom.py:176: SyntaxWarning: assertion is always true, perhaps remove parentheses?

1/27/12 9:04:22 PM com.apple.wikid[35954] assert (oldChild.parentNode is self,

1/27/12 9:04:23 PM com.apple.wikid[35954] Traceback (most recent call last):

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/bin/twistd", line 19, in <module>

1/27/12 9:04:23 PM com.apple.wikid[35954] run()

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/scripts/twistd.py", line 27, in run

1/27/12 9:04:23 PM com.apple.wikid[35954] app.run(runApp, ServerOptions)

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/application/app.py", line 694, in run

1/27/12 9:04:23 PM com.apple.wikid[35954] runApp(config)

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/scripts/twistd.py", line 23, in runApp

1/27/12 9:04:23 PM com.apple.wikid[35954] _SomeApplicationRunner(config).run()

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/application/app.py", line 423, in run

1/27/12 9:04:23 PM com.apple.wikid[35954] self.logger.start(None)

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/application/app.py", line 251, in start

1/27/12 9:04:23 PM com.apple.wikid[35954] observer = self._getLogObserver()

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/scripts/_twistd_unix.py", line 140, in _getLogObserver

1/27/12 9:04:23 PM com.apple.wikid[35954] logFile = logfile.LogFile.fromFullPath(self._logfilename)

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/python/logfile.py", line 47, in fromFullPath

1/27/12 9:04:23 PM com.apple.wikid[35954] os.path.dirname(logPath), *args, **kwargs)

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/python/logfile.py", line 147, in __init__

1/27/12 9:04:23 PM com.apple.wikid[35954] BaseLogFile.__init__(self, name, directory, defaultMode)

1/27/12 9:04:23 PM com.apple.wikid[35954] File "/usr/share/caldavd/lib/python/twisted/python/logfile.py", line 32, in __init__

1/27/12 9:04:23 PM com.apple.wikid[35954] assert os.path.isdir(self.directory)

1/27/12 9:04:23 PM com.apple.wikid[35954] AssertionError

1/27/12 9:04:23 PM com.apple.launchd[1] (com.apple.wikid[35954]) Exited with exit code: 1

1/27/12 9:04:23 PM com.apple.launchd[1] (com.apple.wikid) Throttling respawn: Will start in 8 seconds

Curious thing is that in /System/Library/LaunchDaemons/com.apple.wikid.plist I see:

<plist version="1.0">

<dict>

<key>Disabled</key>

<true/>

...

</dict>

</plist>

Which I interpret as 'wikid is disabled', but then how come it's trying to start....