(gdb) bt
#0  0x00000000005657b0 in bool epee::serialization::serialize_stl_container_pod_val_as_blob<std::list<crypto::hash, std::allocator<crypto::hash> >, epee::serialization::portable_storage>(std::list<crypto::hash, std::allocator<crypto::hash> > const&, epee::serialization::portable_storage&, epee::serialization::portable_storage::hsection, char const*) [clone .constprop.154] ()
#1  0x0000000000521f9d in cryptonote::t_cryptonote_protocol_handler<cryptonote::core>::handle_request_chain(int, cryptonote::NOTIFY_REQUEST_CHAIN::request&, cryptonote::cryptonote_connection_context&) ()
#2  0x0000000000511945 in int nodetool::node_server<cryptonote::t_cryptonote_protocol_handler<cryptonote::core> >::handle_invoke_map<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> >(bool, int, std::string const&, std::string&, nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context>&, bool&) ()
#3  0x00000000004d1bd3 in epee::levin::async_protocol_handler<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> >::handle_recv(void const*, unsigned long) ()
#4  0x00000000004d8929 in epee::net_utils::connection<epee::levin::async_protocol_handler<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> > >::handle_read(boost::system::error_code const&, unsigned long) ()
#5  0x00000000004c5c22 in boost::asio::detail::completion_handler<boost::asio::detail::rewrapped_handler<boost::asio::detail::binder2<boost::asio::detail::wrapped_handler<boost::asio::io_service::strand, boost::_bi::bind_t<void, boost::_mfi::mf2<void, epee::net_utils::connection<epee::levin::async_protocol_handler<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> > >, boost::system::error_code const&, unsigned long>, boost::_bi::list3<boost::_bi::value<boost::shared_ptr<epee::net_utils::connection<epee::levin::async_protocol_handler<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> > > > >, boost::arg<1> (*)(), boost::arg<2> (*)()> >, boost::asio::detail::is_continuation_if_running>, boost::system::error_code, unsigned long>, boost::_bi::bind_t<void, boost::_mfi::mf2<void, epee::net_utils::connection<epee::levin::async_protocol_handler<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> > >, boost::system::error_code const&, unsigned long>, boost::_bi::list3<boost::_bi::value<boost::shared_ptr<epee::net_utils::connection<epee::levin::async_protocol_handler<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> > > > >, boost::arg<1> (*)(), boost::arg<2> (*)()> > > >::do_complete(boost::asio::detail::task_io_service*, boost::asio::detail::task_io_service_operation*, boost::system::error_code const&, unsigned long) ()
#6  0x0000000000533d19 in boost::asio::detail::reactive_socket_recv_op<boost::asio::mutable_buffers_1, boost::asio::detail::wrapped_handler<boost::asio::io_service::strand, boost::_bi::bind_t<void, boost::_mfi::mf2<void, epee::net_utils::connection<epee::levin::async_protocol_handler<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> > >, boost::system::error_code const&, unsigned long>, boost::_bi::list3<boost::_bi::value<boost::shared_ptr<epee::net_utils::connection<epee::levin::async_protocol_handler<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> > > > >, boost::arg<1> (*)(), boost::arg<2> (*)()> >, boost::asio::detail::is_continuation_if_running> >::do_complete(boost::asio::detail::task_io_service*, boost::asio::detail::task_io_service_operation*, boost::system::error_code const&, unsigned long) ()
#7  0x00000000004873f5 in boost::asio::detail::epoll_reactor::descriptor_state::do_complete(boost::asio::detail::task_io_service*, boost::asio::detail::task_io_service_operation*, boost::system::error_code const&, unsigned long) ()
#8  0x00000000004acfe8 in epee::net_utils::boosted_tcp_server<epee::levin::async_protocol_handler<nodetool::p2p_connection_context_t<cryptonote::cryptonote_connection_context> > >::worker_thread() ()
#9  0x00007ffff6c71e7a in ?? () from /usr/lib/x86_64-linux-gnu/libboost_thread.so.1.55.0
#10 0x00007ffff6a50182 in start_thread (arg=0x7fffe9bf9700) at pthread_create.c:312
#11 0x00007ffff7b0f00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
(gdb)