Disable the test that's crashing with SystemError:BytecodeCorrupted on PyPy.

src/greentest/greentest/patched_tests_setup.py

@@ -243,7 +243,12 @@ if LIBUV:
                 ]
 
             if PYPY:
-
+                disabled_tests += [
+                    # This seems to crash the interpreter. I cannot reproduce
+                    # on macOS or local Linux VM.
+                    # See https://travis-ci.org/gevent/gevent/jobs/348661604#L709
+                    'test_smtplib.TooLongLineTests.testLineTooLong',
+                ]
                 if ARES:
 
                     disabled_tests += [

src/greentest/known_failures.py

@@ -169,6 +169,16 @@ if PYPY:
             'FLAKY test__example_udp_client.py',
         ]
 
+        if LIBUV:
+            IGNORED_TESTS += [
+                # This has started crashing with a SystemError.
+                # I cannot reproduce with the same version on macOS
+                # and I cannot reproduce with the same version in a Linux vm.
+                # Commenting out individual tests just moves the crash around.
+                # https://bitbucket.org/pypy/pypy/issues/2769/systemerror-unexpected-internal-exception
+                'test__pywsgi.py',
+            ]
+
     if PY3 and TRAVIS:
         FAILING_TESTS += [
             ## ---