Oops...
If you think this really should work and you can reproduce it. Then you should consider to report this problem to the Trac team.
Go to http://trac.edgewall.com/ and create a new ticket where you describe the problem, how to reproduce it. Don't forget to include the python traceback found below.
TracGuide — The Trac User and Administration Guide
Python traceback
Traceback (most recent call last): File "/usr/lib/python2.4/site-packages/trac/web/modpython_frontend.py", line 206, in handler dispatch_request(mpr.path_info, mpr, env) File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 139, in dispatch_request dispatcher.dispatch(req) File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 107, in dispatch resp = chosen_handler.process_request(req) File "/usr/lib/python2.4/site-packages/trac/versioncontrol/web_ui/log.py", line 88, in process_request repos = self.env.get_repository(req.authname) File "/usr/lib/python2.4/site-packages/trac/env.py", line 162, in get_repository repos = SubversionRepository(repos_dir, authz, self.log) File "/usr/lib/python2.4/site-packages/trac/versioncontrol/svn_fs.py", line 206, in __init__ self.log.debug("Opening subversion file-system at %s with scope %s" \ File "/usr/lib/python2.4/logging/__init__.py", line 918, in debug apply(self._log, (DEBUG, msg, args), kwargs) File "/usr/lib/python2.4/logging/__init__.py", line 1039, in _log self.handle(record) File "/usr/lib/python2.4/logging/__init__.py", line 1049, in handle self.callHandlers(record) File "/usr/lib/python2.4/logging/__init__.py", line 1082, in callHandlers hdlr.handle(record) File "/usr/lib/python2.4/logging/__init__.py", line 617, in handle self.emit(record) File "/usr/lib/python2.4/logging/__init__.py", line 717, in emit self.handleError(record) File "/usr/lib/python2.4/logging/__init__.py", line 668, in handleError traceback.print_exception(ei[0], ei[1], ei[2], None, sys.stderr) File "/usr/lib/python2.4/traceback.py", line 124, in print_exception _print(file, 'Traceback (most recent call last):') File "/usr/lib/python2.4/traceback.py", line 13, in _print file.write(str+terminator) IOError: [Errno 28] No space left on device