Skip test on pypy/libuv/travis.

src/greentest/greentest/sysinfo.py

@@ -110,7 +110,7 @@ if RUNNING_ON_APPVEYOR:
 EXPECT_POOR_TIMER_RESOLUTION = (PYPY3
                                 or RUNNING_ON_APPVEYOR
                                 or (LIBUV and PYPY)
-                                or (CFFI_BACKEND and RUN_COVERAGE))
+                                or RUN_COVERAGE)
 
 
 CONN_ABORTED_ERRORS = []

src/greentest/test__fileobject.py

@@ -10,6 +10,8 @@ from gevent.fileobject import FileObject, FileObjectThread
 import greentest
 from greentest.sysinfo import PY3
 from greentest.flaky import reraiseFlakyTestRaceConditionLibuv
+from greentest.skipping import skipOnLibuvOnCIOnPyPy
+
 
 class Test(greentest.TestCase):
 
@@ -80,6 +82,8 @@ class Test(greentest.TestCase):
         finally:
             g.kill()
 
+    @skipOnLibuvOnCIOnPyPy("This appears to crash on libuv/pypy/travis.")
+    # No idea why, can't duplicate locally.
     def test_seek(self):
         fileno, path = tempfile.mkstemp('.gevent.test__fileobject.test_seek')
         self.addCleanup(os.remove, path)