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Author vstinner
Recipients neologix, vstinner
Date 2011-04-03.23:21:59
SpamBayes Score 9.10132e-06
Marked as misclassified No
Message-id <1301872919.9.0.645478347687.issue11753@psf.upfronthosting.co.za>
In-reply-to
Content
The problem is that faulthandler's thread (faulthandler_thread) receives the SIGALRM signal: the signal interrupts sem_timedwait() which returns EINTR. PyThread_acquire_lock_timed() retries sem_timedwait() and so the other thread executing sendall() is not interrupted.

The solution is to configure which signals are handled by faulthandler_thread() using pthread_sigmask():
http://hg.python.org/sandbox/haypo/rev/4257fdfa5661

I forced a build on x86 FreeBSD (custom) buildbot:
http://www.python.org/dev/buildbot/all/builders/x86%20FreeBSD%20custom

I already tested sigprocmask() on FreeBSD (in my VM) and it works as expected: test_socket doesn't block anymore.
History
Date User Action Args
2011-04-03 23:21:59vstinnersetrecipients: + vstinner, neologix
2011-04-03 23:21:59vstinnersetmessageid: <1301872919.9.0.645478347687.issue11753@psf.upfronthosting.co.za>
2011-04-03 23:21:59vstinnerlinkissue11753 messages
2011-04-03 23:21:59vstinnercreate