I am attempting to use boost.coroutine; however, it is not behaving for me. Perhaps someone could shed some light? Here is what happens: 1 start coroutine A 2 do some work.... 3 my_wait_for_value() 4 future<R> f(self); 5 callback = make_callback(f); 6 r = do_wait( f ) 7 boost::coroutines::wait( f ) // blocks and the coroutine exits , goto A 8 return *f; 9 print( "here" ) 10 return r; 11 do some more work A start coroutine B B do some work C callback_from_coroutine_A ( R ) // goto line 8 D .... back to line 8 8 r = *f; // got the right future value 9 print("here") 10 return r; 11 ????? After returning r on line 10, I should end up back on line 11, but instead end up on line D. I clearly setup the future, waited, started another coroutine, set the value of the future, returned 2 levels of the stack, but the 3rd level dumped me off back in a different coroutine. Running on Mac OS X 10.6. Single threaded code. Dan