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test_eintr: try to debug hang on FreeBSD

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This commit is contained in:
Victor Stinner 2015-09-02 17:19:04 +02:00
parent e801c36037
commit 177b8eb34f
1 changed files with 8 additions and 0 deletions
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8
Lib/test/eintrdata/eintr_tester.py
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@ -8,6 +8,7 @@ Signals are generated in-process using setitimer(ITIMER_REAL), which allows
sub-second periodicity (contrarily to signal()).
"""
import faulthandler
import io
import os
import select
@ -36,10 +37,17 @@ class EINTRBaseTest(unittest.TestCase):
cls.orig_handler = signal.signal(signal.SIGALRM, lambda *args: None)
signal.setitimer(signal.ITIMER_REAL, cls.signal_delay,
cls.signal_period)
if hasattr(faulthandler, 'dump_traceback_later'):
# Most tests take less than 30 seconds, so 15 minutes should be
# enough. dump_traceback_later() is implemented with a thread, but
# pthread_sigmask() is used to mask all signaled on this thread.
faulthandler.dump_traceback_later(15 * 60, exit=True)
@classmethod
def stop_alarm(cls):
signal.setitimer(signal.ITIMER_REAL, 0, 0)
if hasattr(faulthandler, 'cancel_dump_traceback_later'):
faulthandler.cancel_dump_traceback_later()
@classmethod
def tearDownClass(cls):