Serhiy Storchaka added the comment:
http://buildbot.python.org/all/builders/x86%20Tiger%202.7/builds/3246/steps/test/logs/stdio
======================================================================
FAIL: test_make_msgid_collisions (email.test.test_email.TestMiscellaneous)
----------------------------------------------------------------------
Traceback (most recent call last):
File
"/Users/db3l/buildarea/2.7.bolen-tiger/build/Lib/email/test/test_email.py",
line 2434, in test_make_msgid_collisions
pass
File "/Users/db3l/buildarea/2.7.bolen-tiger/build/Lib/contextlib.py", line
24, in __exit__
self.gen.next()
File "/Users/db3l/buildarea/2.7.bolen-tiger/build/Lib/test/test_support.py",
line 1570, in start_threads
raise AssertionError('Unable to join %d threads' % len(started))
AssertionError: Unable to join 5 threads
----------------------------------------------------------------------
Threads that should be finished for 3 seconds can't be finished for 15 minutes.
It looks as clock() wrapped around. From clock (3) manpage:
Note that the time can wrap around. On a 32-bit system where
CLOCKS_PER_SEC equals 1000000 this function will return the same value
approximately every 72 minutes.
The solution is to use monotonic() (time() on older releases) instead of
clock().
----------
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Python tracker <[email protected]>
<http://bugs.python.org/issue6598>
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