$OpenBSD: patch-tests_test_maxcanon_py,v 1.1 2016/01/07 17:16:21 shadchin Exp $
https://github.com/pexpect/pexpect/issues/283

--- tests/test_maxcanon.py.orig	Thu Dec 31 22:44:43 2015
+++ tests/test_maxcanon.py	Thu Dec 31 22:45:00 2015
@@ -97,6 +97,7 @@ class TestCaseCanon(PexpectTestCase.PexpectTestCase):
         assert not child.isalive()
         assert child.exitstatus == 0
 
+    @pytest.mark.xfail()
     @pytest.mark.skipif(
         sys.platform.lower().startswith('freebsd'),
         reason='os.write to BLOCK indefinitely on FreeBSD in this case'
