New submission from STINNER Victor:
Hum, the following failing looks like bpo-19612, but it seems like the code
took the "raise" path instead of the "pass" fails.
try:
self.stdin.write(input) <~~~~ HERE
except BrokenPipeError:
pass # communicate() must ignore broken pipe errors.
except OSError as e:
if e.errno == errno.EINVAL and self.poll() is not None:
# Issue #19612: On Windows, stdin.write() fails with EINVAL
# if the process already exited before the write
pass
else:
raise
On AMD64 Windows7 SP1 3.x:
http://buildbot.python.org/all/builders/AMD64%20Windows7%20SP1%203.x/builds/452/steps/test/logs/stdio
...
test_communicate (test.test_subprocess.ProcessTestCase) ... ok
test_communicate_eintr (test.test_subprocess.ProcessTestCase) ... skipped
'Requires signal.SIGUSR1'
test_communicate_epipe (test.test_subprocess.ProcessTestCase) ... ERROR
C:\buildbot.python.org\3.x.kloth-win64\build\lib\subprocess.py:763:
ResourceWarning: subprocess 1780 is still running
ResourceWarning, source=self)
test_communicate_epipe_only_stdin (test.test_subprocess.ProcessTestCase) ... ok
test_communicate_errors (test.test_subprocess.ProcessTestCase) ... ok
test_communicate_pipe_buf (test.test_subprocess.ProcessTestCase) ... ok
...
======================================================================
ERROR: test_communicate_epipe (test.test_subprocess.ProcessTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
File
"C:\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_subprocess.py",
line 1219, in test_communicate_epipe
p.communicate(b"x" * 2**20)
File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\subprocess.py", line
838, in communicate
stdout, stderr = self._communicate(input, endtime, timeout)
File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\subprocess.py", line
1072, in _communicate
self._stdin_write(input)
File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\subprocess.py", line
778, in _stdin_write
self.stdin.write(input)
OSError: [Errno 22] Invalid argument
----------------------------------------------------------------------
Ran 261 tests in 43.540s
FAILED (errors=1, skipped=150)
test test_subprocess failed
----------
components: Windows
messages: 294056
nosy: haypo, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: test_communicate_epipe() of test_subprocess fails randomly on AMD64
Windows7 SP1 3.x
versions: Python 3.7
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Python tracker <[email protected]>
<http://bugs.python.org/issue30418>
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