STINNER Victor <victor.stin...@haypocalc.com> added the comment: It looks like pthread_mutex_lock() and pthread_mutex_unlock() are not reentrant on some platforms (in some implementations of the pthread API).
Antoine: if I understand correctly your patch, if we have a pending signal, all next signals will be simply ignored. I think that this issue is not specific to Mac OS X: signal_handler() can be called twice at the same time in two different threads or in the same thread (reentrant call). pthread_sigmask() can be used to avoid reentrant call, but it has no effect on the second case: "signal_handler() called twice at the same time in two different threads". Note: SA_NODEFER flag of sigaction() has no effect on this issue because signal_handler() is called twice to handle two different signals (SIGUSR1 and SIGUSR2). ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue11768> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
