Segmentation fault in add_to_active_queue()

traffic_server: Segmentation fault (Address not mapped to object [0x8])
traffic_server - STACK TRACE: 
/usr/bin/traffic_server(crash_logger_invoke(int, siginfo_t*, void*)+0x8e)[0x4abf4e]
/lib64/libpthread.so.0(+0x10430)[0x2b15be123430]
/usr/bin/traffic_server(NetHandler::add_to_active_queue(UnixNetVConnection*)+0x51f)[0x77818f]
/usr/bin/traffic_server(HttpClientSession::start()+0x11d)[0x5a3ced]
/usr/bin/traffic_server(ProxyClientSession::state_api_callout(int, void*)+0x33)[0x4f7c13]
/usr/bin/traffic_server(HttpClientSession::new_connection(NetVConnection*, MIOBuffer*, IOBufferReader*, bool)+0x21a)[0x5a106a]
/usr/bin/traffic_server(HttpSessionAccept::accept(NetVConnection*, MIOBuffer*, IOBufferReader*)+0x211)[0x59af31]
/usr/bin/traffic_server(ProtocolProbeTrampoline::ioCompletionEvent(int, void*)+0xb02)[0x4f72e2]
/usr/bin/traffic_server[0x786f53]
/usr/bin/traffic_server(NetHandler::mainNetEvent(int, Event*)+0x1fa)[0x774efa]
/usr/bin/traffic_server(EThread::execute()+0x67b)[0x7beabb]
/usr/bin/traffic_server[0x7bd8c5]
/lib64/libpthread.so.0(+0x7555)[0x2b15be11a555]
/lib64/libc.so.6(clone+0x6d)[0x2b15bf23cb9d]