File "/usr/lib/python2.6/dist-packages/bzrlib/commit.py", line 363, in _commit
    old_revno, new_revno = self._check_out_of_date_tree()
  File "/usr/lib/python2.6/dist-packages/bzrlib/commit.py", line 549, in _check_out_of_date_tree
    if self.branch.repository.has_revision(first_tree_parent):
  File "/usr/lib/python2.6/dist-packages/bzrlib/decorators.py", line 140, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 1861, in has_revision
    return revision_id in self.has_revisions((revision_id,))
  File "/usr/lib/python2.6/dist-packages/bzrlib/decorators.py", line 140, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 1871, in has_revisions
    [(rev_id,) for rev_id in revision_ids])
  File "/usr/lib/python2.6/dist-packages/bzrlib/groupcompress.py", line 1313, in get_parent_map
    return self._get_parent_map_with_sources(keys)[0]
  File "/usr/lib/python2.6/dist-packages/bzrlib/groupcompress.py", line 1332, in _get_parent_map_with_sources
    new_result = source.get_parent_map(missing)
  File "/usr/lib/python2.6/dist-packages/bzrlib/groupcompress.py", line 1969, in get_parent_map
    for node in nodes:
  File "/usr/lib/python2.6/dist-packages/bzrlib/groupcompress.py", line 1941, in _get_entries
    for node in self._graph_index.iter_entries(keys):
  File "/usr/lib/python2.6/dist-packages/bzrlib/index.py", line 1358, in iter_entries
    for node in index.iter_entries(keys):
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 1144, in iter_entries
    if not self.key_count():
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 1426, in key_count
    self._get_root_node()
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 922, in _get_root_node
    self._get_internal_nodes([0])
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 947, in _get_internal_nodes
    return self._get_nodes(self._internal_node_cache, node_indexes)
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 939, in _get_nodes
    found.update(self._get_and_cache_nodes(needed))
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 716, in _get_and_cache_nodes
    for node_pos, node in self._read_nodes(sorted(nodes)):
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 1540, in _read_nodes
    for offset, data in data_ranges:
  File "/usr/lib/python2.6/dist-packages/bzrlib/transport/__init__.py", line 704, in _seek_and_read
    c_offset.length, actual=len(data))
ShortReadvError: readv() read 0 bytes rather than 179 bytes at 0 for "4d46aaa30ce4a05d9a71342fb858bfe7.rix"