STINNER Victor <vstin...@redhat.com> added the comment:
I just tested the 3.7 branch manually: regrtest works as expected.
I'm using this local changes:
diff --git a/Lib/test/libregrtest/runtest.py b/Lib/test/libregrtest/runtest.py
index e7dce180cb..7d996d6918 100644
--- a/Lib/test/libregrtest/runtest.py
+++ b/Lib/test/libregrtest/runtest.py
@@ -119,7 +119,7 @@ def _runtest(ns, test_name):
use_timeout = (ns.timeout is not None)
if use_timeout:
- faulthandler.dump_traceback_later(ns.timeout, exit=True)
+ pass #faulthandler.dump_traceback_later(ns.timeout, exit=True)
start_time = time.perf_counter()
try:
diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index 8032da0530..e21399c840 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -89,6 +89,7 @@ class FileTests(unittest.TestCase):
tearDown = setUp
def test_access(self):
+ import time; time.sleep(3600)
f = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
os.close(f)
self.assertTrue(os.access(support.TESTFN, os.W_OK))
Then I ran:
vstinner@apu$ ./python -m test -j2 test_os -m test_access --timeout=3
Run tests in parallel using 2 child processes
0:00:04 load avg: 0.59 [1/1/1] test_os timed out (4 sec 512 ms)
== Tests result: FAILURE ==
1 test failed:
test_os
Total duration: 4 sec 545 ms
Tests result: FAILURE
As you can see, test_os is killed after 4.5 seconds, as expected (it uses
timeout x 1.5, since faulthandler is supposed to be first watchdog with timeout
seconds).
--
Maybe something is wrong with test_concurrent_futures on Windows. Maybe
subprocess.Popen.kill() is unable to kill the process immediately for an
unknown reason?
Or maybe subprocess.Popen.communicate(timeout=self.timeout) didn't fail with
TimeoutExpired?
Sadly, libregrtest is quite when it kills a worker process because of timeout,
since the following output should be enough to understand what happened. But
here the worker was not killed, or failed to be killed, or something else...
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<https://bugs.python.org/issue37531>
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