id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
8935,"async_write successful but only wrote 64K, handler invoked with bytes_transferred 0",wim@…,chris_kohlhoff,"Most of the time, everytime works perfect. Since boost 1.54 on Windows, I observed the following pattern in a minority of the cases (about 1 in 10 connections):

- socket is open and in use, previous read-write sequences ok
- async_write(103354 bytes, 4 buffers)
- handle_async_write: 0 bytes written, The operation completed successfully
- async_write(5 bytes, 3 buffers)
- handle_async_write: 5 bytes written, The operation completed successfully

What is not correct:
- write handler is invoked with no error condition, but bytes_transferred set to 0 instead of the expected 103354 bytes
- a packet sniffer shows that of the 103354 bytes, 65536 bytes were transferred, even though 0 was reported
- the packet sniffer also shows that the 5 following bytes were transferred

This corrupts the data stream.

When I set a conditional breakpoint on the write handler, I see that the case where no error is reported but bytes_transferred != 0 happens much more regularly, but it does not seem to be problematic for writes of less than 64K.

This is a stack trace of such an occurance (bytes_transferred is 0, e is 0):
{{{
 	hello.wt.exe!http::server::Connection::handleWriteResponse(const boost::system::error_code & e, unsigned int bytes_transferred) Line 372	C++
 	hello.wt.exe!boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>::call<boost::shared_ptr<http::server::TcpConnection>,boost::system::error_code const ,unsigned int>(boost::shared_ptr<http::server::TcpConnection> & u, const void * __formal, const boost::system::error_code & b1, unsigned int & b2) Line 271	C++
 	hello.wt.exe!boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>::operator()<boost::shared_ptr<http::server::TcpConnection> >(boost::shared_ptr<http::server::TcpConnection> & u, const boost::system::error_code & a1, unsigned int a2) Line 287	C++
 	hello.wt.exe!boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> >::operator()<boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list2<boost::system::error_code const &,unsigned int const &> >(boost::_bi::type<void> __formal, boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int> & f, boost::_bi::list2<boost::system::error_code const &,unsigned int const &> & a, int __formal) Line 393	C++
 	hello.wt.exe!boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >::operator()<boost::system::error_code,unsigned int>(const boost::system::error_code & a1, const unsigned int & a2) Line 103	C++
 	hello.wt.exe!boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int>::operator()() Line 129	C++
 	hello.wt.exe!boost::asio::asio_handler_invoke<boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> >(boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> function, ...) Line 65	C++
 	hello.wt.exe!boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > >(boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> & function, boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > & context) Line 37	C++
 	hello.wt.exe!boost::asio::detail::asio_handler_invoke<boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int>(boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> & function, boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> * this_handler) Line 171	C++
 	hello.wt.exe!boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int>,boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> >(boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> & function, boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> & context) Line 37	C++
 	hello.wt.exe!boost::asio::detail::strand_service::dispatch<boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> >(boost::asio::detail::strand_service::strand_impl * & impl, boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> & handler) Line 62	C++
 	hello.wt.exe!boost::asio::io_service::strand::dispatch<boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> >(const boost::asio::detail::binder2<boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::system::error_code,unsigned int> & handler) Line 157	C++
 	hello.wt.exe!boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running>::operator()<boost::system::error_code,unsigned int>(const boost::system::error_code & arg1, const unsigned int & arg2) Line 99	C++
>	hello.wt.exe!boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >::operator()(const boost::system::error_code & ec, unsigned int bytes_transferred, int start) Line 194	C++
 	hello.wt.exe!boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>::operator()() Line 129	C++
 	hello.wt.exe!boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > >::operator()() Line 192	C++
 	hello.wt.exe!boost::asio::asio_handler_invoke<boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > > >(boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > > function, ...) Line 65	C++
 	hello.wt.exe!boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > >,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > >(boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > > & function, boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > & context) Line 37	C++
 	hello.wt.exe!boost::asio::detail::asio_handler_invoke<boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > >,boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > >(boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > > & function, boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > > * this_handler) Line 276	C++
 	hello.wt.exe!boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > >,boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > > >(boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > > & function, boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > > & context) Line 37	C++
 	hello.wt.exe!boost::asio::detail::completion_handler<boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,boost::asio::stream_socket_service<boost::asio::ip::tcp> >,std::vector<boost::asio::const_buffer,std::allocator<boost::asio::const_buffer> >,boost::asio::detail::transfer_all_t,boost::asio::detail::wrapped_handler<boost::asio::io_service::strand,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > >,boost::asio::detail::is_continuation_if_running> >,boost::system::error_code,unsigned int>,boost::_bi::bind_t<void,boost::_mfi::mf2<void,http::server::Connection,boost::system::error_code const &,unsigned int>,boost::_bi::list3<boost::_bi::value<boost::shared_ptr<http::server::TcpConnection> >,boost::arg<1>,boost::arg<2> > > > >::do_complete(boost::asio::detail::win_iocp_io_service * owner, boost::asio::detail::win_iocp_operation * base, const boost::system::error_code & __formal, unsigned int __formal) Line 68	C++
 	hello.wt.exe!boost::asio::detail::win_iocp_operation::complete(boost::asio::detail::win_iocp_io_service & owner, const boost::system::error_code & ec, unsigned int bytes_transferred) Line 45	C++
 	hello.wt.exe!boost::asio::detail::strand_service::do_complete(boost::asio::detail::win_iocp_io_service * owner, boost::asio::detail::win_iocp_operation * base, const boost::system::error_code & ec, unsigned int __formal) Line 168	C++
 	hello.wt.exe!boost::asio::detail::win_iocp_operation::complete(boost::asio::detail::win_iocp_io_service & owner, const boost::system::error_code & ec, unsigned int bytes_transferred) Line 45	C++
 	hello.wt.exe!boost::asio::detail::win_iocp_io_service::do_one(bool block, boost::system::error_code & ec) Line 402	C++
 	hello.wt.exe!boost::asio::detail::win_iocp_io_service::run(boost::system::error_code & ec) Line 161	C++
 	hello.wt.exe!boost::asio::io_service::run() Line 59	C++
}}}

I can reproduce this quite easily, please ask if you need more information.
",Bugs,closed,To Be Determined,asio,Boost 1.54.0,Problem,duplicate,,