id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
308	check that foreign callback returns take place in the correct order	felix winkelmann	felix winkelmann	Multiple threads or use of continuations may result in returns from foreign callbacks happen not in the required order. By keeping a stack of addresses (for example from a local variable in the callback entry) this could be checked by the runtime system.	task	closed	minor		core libraries	4.5.x	fixed	foreign callback