Hi, In one of our tests, we saw a race condition on event_debug_mode_too_late. We are using 2.0.21 stable.
In the test, one thread has on top of the stack #0 event_assign #1 event_new #2 ... omitted and another is doing #0 event_add_internal #1 event_add #2 ... omitted Setting macro _EVENT_DISABLE_DEBUG_MODE fixes the problem. A google search shows this might be similar to reports here: http://archives.seul.org/libevent/users/Nov-2010/msg00058.html and here: http://sourceforge.net/p/levent/bugs/182/ Thanks. Yang
