[Boost-bugs] [Boost C++ Libraries] #10956: null point exception using asio based on linux

Subject: [Boost-bugs] [Boost C++ Libraries] #10956: null point exception using asio based on linux
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-01-23 06:58:49

#10956: null point exception using asio based on linux
-------------------------------------+------------------------------
 Reporter:  xuzhiteng <419855192@…>  |       Type:  Bugs
   Status:  new                      |  Milestone:  To Be Determined
Component:  None                     |    Version:  Boost 1.56.0
 Severity:  Problem                  |   Keywords:
-------------------------------------+------------------------------
 I have writen a linux server application based on centos boost asio.I have
 created thread pool accelerating asyn asio,but it is cored down like
 following.
 #0  start_op (this=0x1196e18, impl=..., op_type=1, op=0x7fd2b01a8c30,
 is_continuation=<value optimized out>, is_non_blocking=true, noop=false)
     at
 /usr/share/server_depends/cmake/depends/net/../../../depends/net/../boost_1_56_0/boost/asio/detail/impl/epoll_reactor.ipp:219
 #1  boost::asio::detail::reactive_socket_service_base::start_op
 (this=0x1196e18, impl=..., op_type=1, op=0x7fd2b01a8c30,
 is_continuation=<value optimized out>, is_non_blocking=true, noop=false)
     at
 /usr/share/server_depends/cmake/depends/net/../../../depends/net/../boost_1_56_0/boost/asio/detail/impl/reactive_socket_service_base.ipp:214
 #2  0x00007fd2b94dc667 in
 async_send<boost::asio::detail::consuming_buffers<boost::asio::const_buffer,
 asio_net::shared_const_buffer>,
 boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,
 boost::asio::stream_socket_service<boost::asio::ip::tcp> >,
 asio_net::shared_const_buffer, boost::asio::detail::transfer_all_t,
 boost::_bi::bind_t<void, boost::_mfi::mf2<void, asio_net::AsioSocket,
 boost::system::error_code const&, unsigned long>,
 boost::_bi::list3<boost::_bi::value<asio_net::AsioSocket*>, boost::arg<1>,
 boost::arg<2> > > > > (this=<value optimized out>, ec=<value optimized
 out>, bytes_transferred=<value optimized out>, start=<value optimized
 out>)
     at
 /usr/share/server_depends/cmake/depends/net/../../../depends/net/../boost_1_56_0/boost/asio/detail/reactive_socket_service_base.hpp:216
 #3
 async_send<boost::asio::detail::consuming_buffers<boost::asio::const_buffer,
 asio_net::shared_const_buffer>,
 boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,
 boost::asio::stream_socket_service<boost::asio::ip::tcp> >,
 asio_net::shared_const_buffer, boost::asio::detail::transfer_all_t,
 boost::_bi::bind_t<void, boost::_mfi::mf2<void, asio_net::AsioSocket,
 boost::system::error_code const&, unsigned long>,
 boost::_bi::list3<boost::_bi::value<asio_net::AsioSocket*>, boost::arg<1>,
 boost::arg<2> > > > > (this=<value optimized out>, ec=<value optimized
 out>, bytes_transferred=<value optimized out>, start=<value optimized
 out>)
     at
 /usr/share/server_depends/cmake/depends/net/../../../depends/net/../boost_1_56_0/boost/asio/stream_socket_service.hpp:330
 #4
 async_write_some<boost::asio::detail::consuming_buffers<boost::asio::const_buffer,
 asio_net::shared_const_buffer>,
 boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp,
 boost::asio::stream_socket_service<boost::asio::ip::tcp> >,
 asio_net::shared_const_buffer, boost::asio::detail::transfer_all_t,
 boost::_bi::bind_t<void, boost::_mfi::mf2<void, asio_net::AsioSocket,
 boost::system::error_code const&, unsigned long>,
 boost::_bi::list3<boost::_bi::value<asio_net::AsioSocket*>, boost::arg<1>,
 boost::arg<2> > > > > (this=<value optimized out>, ec=<value optimized
 out>, bytes_transferred=<value optimized out>, start=<value optimized
 out>)
     at
 /usr/share/server_depends/cmake/depends/net/../../../depends/net/../boost_1_56_0/boost/asio/basic_stream_socket.hpp:732

 I guess that the socket writing thread starts a reactor io when the other
 thread closes it concurrency.Is that a bug?Does the socket closing
 function should add some lock to avoid it.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10956>
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