looks like we are doing a discovery heartbeat and seeing crash in curl library..

(gdb)
#0  native_handle (impl=<error reading variable: Cannot access memory at address 0x10>, this=<optimized out>) at controller/src/http/client/http_curl.cc:480
#1  native_handle (this=<error reading variable: Cannot access memory at address 0x10>) at build/include/boost/asio/basic_socket.hpp:367
#2  opensocket (data=0x7f77a0004b10, purpose=<optimized out>, address=<optimized out>) at controller/src/http/client/http_curl.cc:302
#3  0x00000000005dd622 in Curl_socket (conn=0x7f77a0006288, ai=0x7f779400e978, addr=0x7f77a7621540, sockfd=0x7f77a7621530) at /ecbuilds/PipeLine/sb/third_party/curl-7.24.0/lib/connect.c:1189
#4  0x00000000005dcb3a in singleipconnect (conn=0x7f77a0006288, ai=0x7f779400e978, timeout_ms=0, sockp=0x7f77a7621694, connected=0x7f77a762171f) at /ecbuilds/PipeLine/sb/third_party/curl-7.24.0/lib/connect.c:851
#5  0x00000000005dd217 in Curl_connecthost (conn=0x7f77a0006288, remotehost=0x7f779400cc18, sockconn=0x7f77a0006430, addr=0x7f77a76216d8, connected=0x7f77a762171f) at /ecbuilds/PipeLine/sb/third_party/curl-7.24.0/lib/connect.c:1033
#6  0x00000000005f8752 in ConnectPlease (data=0x7f77a0008478, conn=0x7f77a0006288, connected=0x7f77a762171f) at /ecbuilds/PipeLine/sb/third_party/curl-7.24.0/lib/url.c:3229
#7  0x00000000005fb3fd in Curl_setup_conn (conn=0x7f77a0006288, protocol_done=0x7f77a76217fa) at /ecbuilds/PipeLine/sb/third_party/curl-7.24.0/lib/url.c:5146
#8  0x00000000005fb5c4 in Curl_connect (data=0x7f77a0008478, in_connect=0x7f77a0003d20, asyncp=0x7f77a76217f9, protocol_done=0x7f77a76217fa) at /ecbuilds/PipeLine/sb/third_party/curl-7.24.0/lib/url.c:5228
#9  0x00000000005df63a in multi_runsingle (multi=0x1041348, now=..., easy=0x7f77a0003d08) at /ecbuilds/PipeLine/sb/third_party/curl-7.24.0/lib/multi.c:1045
#10 0x00000000005e0b53 in curl_multi_perform (multi_handle=0x1041348, running_handles=0x7f77a76218b0) at /ecbuilds/PipeLine/sb/third_party/curl-7.24.0/lib/multi.c:1730
#11 0x00000000005cc3d5 in send_perform (g=0x103ff90, conn=<optimized out>) at controller/src/http/client/http_curl.cc:331
#12 0x00000000005c88be in HttpConnection::HttpProcessInternal(std::string, std::string, bool, bool, std::vector<std::string, std::allocator<std::string> >, boost::function<void (std::string&, boost::system::error_code&)>, http_method) (this=0x7f77a0004b10, body=...,
    path=..., header=<optimized out>, timeout=<optimized out>, hdr_options=..., cb=..., method=HTTP_POST) at controller/src/http/client/http_client.cc:217
#13 0x00000000005cb0bf in operator() (a7=HTTP_POST, a6=<error reading variable: access outside bounds of object referenced via synthetic pointer>, a5=<error reading variable: access outside bounds of object referenced via synthetic pointer>, a4=true, a3=false,
    a2=..., a1=..., p=0x7f77a0004b10, this=0x7f77a0008250) at build/include/boost/bind/mem_fn_template.hpp:845
#14 boost::_bi::list8<boost::_bi::value<HttpConnection*>, boost::_bi::value<std::string>, boost::_bi::value<std::string>, boost::_bi::value<bool>, boost::_bi::value<bool>, boost::_bi::value<std::vector<std::string, std::allocator<std::string> > >, boost::_bi::value<boost::function<void (std::string&, boost::system::error_code&)> >, boost::_bi::value<http_method> >::operator()<boost::_mfi::mf7<void, HttpConnection, std::string, std::string, bool, bool, std::vector<std::string, std::allocator<std::string> >, boost::function<void (std::string&, boost::system::error_code&)>, http_method>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf7<void, HttpConnection, std::string, std::string, bool, bool, std::vector<std::string, std::allocator<std::string> >, boost::function<void (std::string&, boost::system::error_code&)>, http_method>&, boost::_bi::list0&, int) (this=<optimized out>, f=..., a=...) at build/include/boost/bind/bind.hpp:747
#15 0x00000000005cb26b in operator() (this=<optimized out>) at build/include/boost/bind/bind_template.hpp:20
#16 boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf7<void, HttpConnection, std::string, std::string, bool, bool, std::vector<std::string, std::allocator<std::string> >, boost::function<void (std::string&, boost::system::error_code&)>, http_method>, boost::_bi::list8<boost::_bi::value<HttpConnection*>, boost::_bi::value<std::string>, boost::_bi::value<std::string>, boost::_bi::value<bool>, boost::_bi::value<bool>, boost::_bi::value<std::vector<std::string, std::allocator<std::string> > >, boost::_bi::value<boost::function<void (std::string&, boost::system::error_code&)> >, boost::_bi::value<http_method> > >, void>::invoke(boost::detail::function::function_buffer&) (function_obj_ptr=...) at build/include/boost/function/function_template.hpp:153
#17 0x00000000005c6767 in operator() (this=<optimized out>) at build/include/boost/function/function_template.hpp:763
#18 HttpClient::DequeueEvent(boost::function<void ()>) (this=<optimized out>, cb=...) at controller/src/http/client/http_client.cc:376
#19 0x00000000005c9ee3 in operator() (a1=..., p=0x10409d0, this=0x7f77a7621bf8) at build/include/boost/bind/mem_fn_template.hpp:165
#20 operator()<bool, boost::_mfi::mf1<bool, HttpClient, boost::function<void()> >, boost::_bi::list1<boost::function<void()>&> > (a=<synthetic pointer>, f=..., this=0x7f77a7621c08) at build/include/boost/bind/bind.hpp:303
#21 operator()<boost::function<void()> > (a1=..., this=0x7f77a7621bf8) at build/include/boost/bind/bind_template.hpp:32
#22 boost::detail::function::function_obj_invoker1<boost::_bi::bind_t<bool, boost::_mfi::mf1<bool, HttpClient, boost::function<void ()> >, boost::_bi::list2<boost::_bi::value<HttpClient*>, boost::arg<1> > >, bool, boost::function<void ()> >::invoke(boost::detail::function::function_buffer&, boost::function<void ()>) (function_obj_ptr=..., a0=...) at build/include/boost/function/function_template.hpp:132
#23 0x0000000000510b29 in operator() (a0=<error reading variable: access outside bounds of object referenced via synthetic pointer>, this=0x7f77a7621bf0) at build/include/boost/function/function_template.hpp:763
#24 QueueTaskRunner<boost::function<void ()>, WorkQueue<boost::function<void ()> > >::RunQueue() (this=0x7f77a00014f0) at controller/src/base/queue_task.h:53
#25 0x00000000006b85a0 in TaskImpl::execute (this=0x7f77a0005ac0) at controller/src/base/task.cc:224
#26 0x00007f77aa26aece in ?? () from /usr/lib/libtbb_debug.so.2
#27 0x00007f77aa261e0b in ?? () from /usr/lib/libtbb_debug.so.2
#28 0x00007f77aa2606f2 in ?? () from /usr/lib/libtbb_debug.so.2
#29 0x00007f77aa25b3ce in ?? () from /usr/lib/libtbb_debug.so.2
#30 0x00007f77aa25b270 in ?? () from /usr/lib/libtbb_debug.so.2
#31 0x00007f77a9db2e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#32 0x00007f77a897bccd in personality () from /lib/x86_64-linux-gnu/libc.so.6
#33 0x0000000000000000 in ?? ()
(gdb) frame 12
#12 0x00000000005c88be in HttpConnection::HttpProcessInternal(std::string, std::string, bool, bool, std::vector<std::string, std::allocator<std::string> >, boost::function<void (std::string&, boost::system::error_code&)>, http_method) (this=0x7f77a0004b10, body=...,
    path=..., header=<optimized out>, timeout=<optimized out>, hdr_options=..., cb=..., method=HTTP_POST) at controller/src/http/client/http_client.cc:217
217     controller/src/http/client/http_client.cc: No such file or directory.
(gdb) info locals
gi = 0x103ff90
curl_handle = <optimized out>
__PRETTY_FUNCTION__ = "void HttpConnection::HttpProcessInternal(std::string, std::string, bool, bool, std::vector<std::basic_string<char> >, HttpConnection::HttpCb, http_method)"
url = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7f77a0007568 "http://10.204.216.31:5998/heartbeat"}}
(gdb)