Hi, several of my PRs as well as local tests have started failing recently. On my local Fedora 27 machine, four sendfile related tests of test_asyncio's BaseLoopSockSendfileTests suite are failing reproducible. For example Travis CI job https://travis-ci.org/python/cpython/jobs/380852981 fails in: * test_stdin_broken_pipe (test.test_asyncio.test_subprocess.SubprocessFastWatcherTests) * test_stdin_broken_pipe (test.test_asyncio.test_subprocess.SubprocessSafeWatcherTests) * test_ignore (test.test_multiprocessing_forkserver.TestIgnoreEINTR) Could somebody have a look, please? Christian