[New-bugs-announce] [issue19294] test_asyncio fails intermittently on OS X 10.4

[Ned Deily]

New submission from Ned Deily:

Since asyncio was checked in, there have been a couple of similar buildbot failures on the OS X 10.4 (Tiger) buildbot sandwiched around a successful run.  I also saw a similar failure on a 10.4 system I have.  So far, the OS X 10.6 (Snow Leopard) buildbot has not had any failures nor have I seen any so far in limited testing on other OS X version (newer than 10.4).

http://buildbot.python.org/all/builders/x86%20Tiger%203.x/builds/7093

http://buildbot.python.org/all/builders/x86%20Tiger%203.x/builds/7095

>From the 

======================================================================
ERROR: test_subprocess_shell (test.test_asyncio.test_events.KqueueEventLoopTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/test/test_asyncio/test_events.py", line 1034, in test_subprocess_shell
    self.loop.run_until_complete(connect())
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/base_events.py", line 177, in run_until_complete
    return future.result()
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/futures.py", line 221, in result
    raise self._exception
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/tasks.py", line 261, in _step
    result = next(coro)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/test/test_asyncio/test_events.py", line 1031, in connect
    'echo "Python"')
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/base_events.py", line 521, in subprocess_shell
    protocol, cmd, True, stdin, stdout, stderr, bufsize, **kwargs)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/unix_events.py", line 161, in _make_subprocess_transport
    yield from transp._post_init()
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/unix_events.py", line 483, in _post_init
    proc.stdin)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/base_events.py", line 507, in connect_write_pipe
    transport = self._make_write_pipe_transport(pipe, protocol, waiter)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/unix_events.py", line 150, in _make_write_pipe_transport
    return _UnixWritePipeTransport(self, pipe, protocol, waiter, extra)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/unix_events.py", line 273, in __init__
    if not stat.S_ISFIFO(os.fstat(self._fileno).st_mode):
OSError: [Errno 9] Bad file descriptor

======================================================================
ERROR: test_subprocess_shell (test.test_asyncio.test_events.SelectEventLoopTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/test/test_asyncio/test_events.py", line 1034, in test_subprocess_shell
    self.loop.run_until_complete(connect())
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/base_events.py", line 177, in run_until_complete
    return future.result()
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/futures.py", line 221, in result
    raise self._exception
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/tasks.py", line 261, in _step
    result = next(coro)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/test/test_asyncio/test_events.py", line 1031, in connect
    'echo "Python"')
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/base_events.py", line 521, in subprocess_shell
    protocol, cmd, True, stdin, stdout, stderr, bufsize, **kwargs)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/unix_events.py", line 161, in _make_subprocess_transport
    yield from transp._post_init()
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/unix_events.py", line 483, in _post_init
    proc.stdin)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/base_events.py", line 507, in connect_write_pipe
    transport = self._make_write_pipe_transport(pipe, protocol, waiter)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/unix_events.py", line 150, in _make_write_pipe_transport
    return _UnixWritePipeTransport(self, pipe, protocol, waiter, extra)
  File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/asyncio/unix_events.py", line 273, in __init__
    if not stat.S_ISFIFO(os.fstat(self._fileno).st_mode):
OSError: [Errno 9] Bad file descriptor

----------
components: Tests
keywords: buildbot
messages: 200389
nosy: gvanrossum, ned.deily
priority: normal
severity: normal
status: open
title: test_asyncio fails intermittently on OS X 10.4
versions: Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19294>
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