diff options
| -rw-r--r-- | meta/recipes-devtools/python/python3/ptesthack.patch | 60 | ||||
| -rw-r--r-- | meta/recipes-devtools/python/python3_3.7.2.bb | 1 |
2 files changed, 61 insertions, 0 deletions
diff --git a/meta/recipes-devtools/python/python3/ptesthack.patch b/meta/recipes-devtools/python/python3/ptesthack.patch new file mode 100644 index 0000000000..8cfa92f9e8 --- /dev/null +++ b/meta/recipes-devtools/python/python3/ptesthack.patch @@ -0,0 +1,60 @@ +This test hangs under 5.0 kernels onwards. It appears to be caused by the commit in the kernel: + +commit 4f693b55c3d2d2239b8a0094b518a1e533cf75d5 (HEAD, refs/bisect/bad) +Author: Eric Dumazet <edumazet@google.com> +Date: Tue Nov 27 14:42:03 2018 -0800 + + tcp: implement coalescing on backlog queue + + In case GRO is not as efficient as it should be or disabled, + we might have a user thread trapped in __release_sock() while + softirq handler flood packets up to the point we have to drop. + + This patch balances work done from user thread and softirq, + to give more chances to __release_sock() to complete its work + before new packets are added the the backlog. + + This also helps if we receive many ACK packets, since GRO + does not aggregate them. + + This patch brings ~60% throughput increase on a receiver + without GRO, but the spectacular gain is really on + 1000x release_sock() latency reduction I have measured. + + Signed-off-by: Eric Dumazet <edumazet@google.com> + Cc: Neal Cardwell <ncardwell@google.com> + Cc: Yuchung Cheng <ycheng@google.com> + Acked-by: Neal Cardwell <ncardwell@google.com> + Signed-off-by: David S. Miller <davem@davemloft.net> + + +Reported to upstream kernel for advice: https://lore.kernel.org/netdev/85aabf9d4f41b6c57629e736993233f80a037e59.camel@linuxfoundation.org/T/#u + +Disable the test for now to stop ptests hanging + +Upstream-Status: Inappropriate [real cause of issue still TBD] + +Index: Python-3.7.2/Lib/test/test_httplib.py +=================================================================== +--- Python-3.7.2.orig/Lib/test/test_httplib.py ++++ Python-3.7.2/Lib/test/test_httplib.py +@@ -1114,6 +1114,7 @@ class BasicTest(TestCase): + self.assertEqual(sock.file.read(), extradata) #we read to the end + resp.close() + ++ @unittest.skip("broken on newer kernels") + def test_response_fileno(self): + # Make sure fd returned by fileno is valid. + serv = socket.socket( +Index: Python-3.7.2/Lib/test/test_ssl.py +=================================================================== +--- Python-3.7.2.orig/Lib/test/test_ssl.py ++++ Python-3.7.2/Lib/test/test_ssl.py +@@ -4146,6 +4146,7 @@ class ThreadedTests(unittest.TestCase): + self.assertEqual(sess_stat['accept'], 4) + self.assertEqual(sess_stat['hits'], 2) + ++ @unittest.skip("broken on newer kernels") + def test_session_handling(self): + client_context, server_context, hostname = testing_context() + client_context2, _, _ = testing_context() diff --git a/meta/recipes-devtools/python/python3_3.7.2.bb b/meta/recipes-devtools/python/python3_3.7.2.bb index 28f128d488..4ff8cff3a1 100644 --- a/meta/recipes-devtools/python/python3_3.7.2.bb +++ b/meta/recipes-devtools/python/python3_3.7.2.bb @@ -21,6 +21,7 @@ SRC_URI = "http://www.python.org/ftp/python/${PV}/Python-${PV}.tar.xz \ file://0001-python3-use-cc_basename-to-replace-CC-for-checking-c.patch \ file://0002-Don-t-do-runtime-test-to-get-float-byte-order.patch \ file://0003-setup.py-pass-missing-libraries-to-Extension-for-mul.patch \ + file://ptesthack.patch \ " SRC_URI_append_class-native = " \ |