intermittent failures with "unable to stat"

[Martin Pool]

I occasionally get errors like that shown before.  I'm not sure what's
causing it.  Has anyone else seen it?

^^^^[log from bzrlib.tests.test_permissions.TestSftpPermissions.test_new_files]
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/tests/test_permissions.py",
line 208, in test_new_files
    t_local = self.make_branch_and_tree('local')
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/tests/__init__.py",
line 2075, in make_branch_and_tree
    b = self.make_branch(relpath, format=format)
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/tests/__init__.py",
line 1835, in make_branch
    repo = self.make_repository(relpath, format=format)
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/tests/__init__.py",
line 1863, in make_repository
    made_control = self.make_bzrdir(relpath, format=format)
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/tests/__init__.py",
line 1850, in make_bzrdir
    return format.initialize_on_transport(t)
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/bzrdir.py", line
1319, in initialize_on_transport
    '', lockable_files.TransportLock)
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/lockable_files.py",
line 85, in __init__
    self._find_modes()
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/lockable_files.py",
line 130, in _find_modes
    st = self._transport.stat('.')
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/transport/sftp.py",
line 649, in stat
    self._translate_io_exception(e, path, ': unable to stat')
  File "/home/mbp/bzr/remove-bzrdir-statics/bzrlib/transport/sftp.py",
line 552, in _translate_io_exception
    raise failure_exc(path, str(e) + more_info)
PathError: Generic path error:
'/tmp/testbzr-JPmXGD.tmp/tmpCrUV8u/work/local': Failure: unable to
stat)



-- 
Martin