id summary reporter owner description type status milestone component version severity resolution keywords cc 13212 Windows: condition_variable::notify_one consumes semaphore handles henri.hakonen@… viboes When condition_variable receives lot of notify_one-calls, it reserves many semaphore handles. Test program consumes over 30 handles per second in my computer. Bugs closed thread Boost 1.65.0 Problem fixed condition_variable, notify_one, semaphore, handles, Windows