id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
11351	boost::asio::ip::tcp::acceptor::open crash under win x64 with Boost.Context/Coroutine	348944179@…	olli	"using boost::asio::ip::tcp;
...

boost::asio::io_service ios;
boost::asio::spawn(ios, [](boost::asio::yield_context yield){
    ...
    tcp::acceptor acpr(ios);
    tcp::resolver rsv(ios);
    tcp::resolver::query qry(""0.0.0.0"", ""23333"");
    tcp::resolver::iterator itr = rsv.resolve(qry);
    tcp::endpoint ep = *itr;

    acpr.open(ep.protocol()); // this will crash!!
    ...
  });

If above code not running in a coroutine, but a thread(like main thread), acpr.open(ep.protocol()); will be ok.

I tested vc9(vs2008) and vc12(vs2013) x64 under Win7 and Win8.1, all the same(include boost 1.57 and 1.58).

Below code come from Boost.Asio example (cpp11) spawn:
http://www.boost.org/doc/libs/1_58_0/doc/html/boost_asio/example/cpp11/spawn/echo_server.cpp

Run this example code, same error will raise."	Bugs	closed	To Be Determined	context	Boost 1.57.0	Problem	worksforme