id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc	branch	branch_author	launchpad_bug
6161	twisted.internet.test.test_sigchld way too aggressive in assuming no previous fd or SIGCHLD handler was installed	itamar	itamar	"`twisted.internet.test.test_sigchld.SetWakeupSIGCHLDTests.setUp` assumes no one has previously set a SIGCHLD handler or registered a wakeup fd. If someone has, that is considered an error. However, any random test that uses the reactor will cause this registration; AFAICT this never caused problems before due to a specific sort order of running tests.

On Ubuntu 12.10:

{{{
$ trial -z 1 twisted.test.test_udp twisted.internet.test.test_sigchld

...

[ERROR]
Traceback (most recent call last):
  File ""/home/itamarst/Devel/Twisted/trunk/twisted/internet/test/test_sigchld.py"", line 58, in setUp
    raise RuntimeError(""You used some signal APIs wrong!  Try again."")
exceptions.RuntimeError: You used some signal APIs wrong!  Try again.

twisted.internet.test.test_sigchld.SetWakeupSIGCHLDTests.test_uninstallHandler
}}}"	defect	closed	normal	Python 3.3 Minimal	core	fixed			branches/sigchld-tests-6161	itamarst