Exception when initializing large repo

[larsbj@…]

I am trying to setup trac on a largish repo (78000 revs, 12GB) The database initialization (sqlite) failes with:

Indexing repository

Failed to initialize environment. ("Can't create a character converter from 'UTF-8' to native encoding", 12) Traceback (most recent call last):

File "/usr/lib/python2.4/site-packages/trac/scripts/admin.py", line 617, in do_initenv

repos.sync()

File "/usr/lib/python2.4/site-packages/trac/versioncontrol/cache.py", line 87, in sync

for path,kind,action,base_path,base_rev in changeset.get_changes():

File "/usr/lib/python2.4/site-packages/trac/versioncontrol/svn_fs.py", line 461, in get_changes

repos.svn_repos_replay(root, e_ptr, e_baton, pool())

File "/opt/subversion-1.3.0/lib/svn-python/libsvn/repos.py", line 230, in svn_repos_replay

return apply(_repos.svn_repos_replay, args)

File "/opt/subversion-1.3.0/lib/svn-python/svn/repos.py", line 113, in delete_entry

if _fs.is_dir(self._get_root(parent_baton[2]), base_path):

File "/opt/subversion-1.3.0/lib/svn-python/libsvn/fs.py", line 351, in svn_fs_is_dir

return apply(_fs.svn_fs_is_dir, args)

SubversionException: ("Can't create a character converter from 'UTF-8' to native encoding", 12)

Not quite sure if this is a trac problem or if this is the svn bindings playing up.