#0  ACE_Message_Block::total_size_and_length (this=0x1, mb_size=@0x7f35eaffbe08, mb_length=@0x7f35eaffbe00) at ../../ace/Message_Block.cpp:267
267           mb_size += i->size ();
(gdb) bt
#0  ACE_Message_Block::total_size_and_length (this=0x1, mb_size=@0x7f35eaffbe08, mb_length=@0x7f35eaffbe00) at ../../ace/Message_Block.cpp:267
#1  0x000000000050ae3b in ACE_Message_Queue<ACE_NULL_SYNCH>::dequeue_head_i (this=0x7f35b648f200, first_item=@0x7f35eaffbe68)
    at /usr/local/include/ace/Message_Queue_T.cpp:1461
#2  0x000000000050a78c in ACE_Message_Queue<ACE_NULL_SYNCH>::dequeue_head (this=0x7f35b648f200, first_item=@0x7f35eaffbe68, timeout=<value optimized out>)
    at /usr/local/include/ace/Message_Queue_T.cpp:1941
#3  0x00000000008b0d4b in WorldSocket::handle_output_queue (this=0x7f35b3b67580, g=...) at ../../../src/game/WorldSocket.cpp:375
#4  0x00000000008b110a in WorldSocket::handle_output (this=0x7f35b3b67580) at ../../../src/game/WorldSocket.cpp:362
#5  0x00007f363558ad7e in ACE_Dev_Poll_Reactor::upcall (this=0x7f35f26a7e80, guard=<value optimized out>) at ../../ace/Dev_Poll_Reactor.inl:90
#6  ACE_Dev_Poll_Reactor::dispatch_io_event (this=0x7f35f26a7e80, guard=<value optimized out>) at ../../ace/Dev_Poll_Reactor.cpp:1340
#7  0x00007f363558b30e in ACE_Dev_Poll_Reactor::handle_events (this=0x7f35f26a7e80, max_wait_time=0x7f35eaffc040) at ../../ace/Dev_Poll_Reactor.cpp:1046
#8  0x00007f36355e32bd in ACE_Reactor::run_reactor_event_loop (this=0x7f35f3420508, tv=..., eh=0) at ../../ace/Reactor.cpp:271
#9  0x00000000008b4e36 in ReactorRunnable::svc (this=0x7f35f2b99678) at ../../../src/game/WorldSocketMgr.cpp:167
#10 0x00007f3635608577 in ACE_Task_Base::svc_run (args=<value optimized out>) at ../../ace/Task.cpp:275
#11 0x00007f3635609901 in ACE_Thread_Adapter::invoke (this=0x7f35f26a85e0) at ../../ace/Thread_Adapter.cpp:98
#12 0x00007f3633759a04 in start_thread () from /lib/libpthread.so.0
#13 0x00007f3632d17d4d in clone () from /lib/libc.so.6
#14 0x0000000000000000 in ?? ()
(gdb) bt full
#0  ACE_Message_Block::total_size_and_length (this=0x1, mb_size=@0x7f35eaffbe08, mb_length=@0x7f35eaffbe00) at ../../ace/Message_Block.cpp:267
        i = 0x1
#1  0x000000000050ae3b in ACE_Message_Queue<ACE_NULL_SYNCH>::dequeue_head_i (this=0x7f35b648f200, first_item=@0x7f35eaffbe68)
    at /usr/local/include/ace/Message_Queue_T.cpp:1461
        mb_bytes = 62
        mb_length = 62
#2  0x000000000050a78c in ACE_Message_Queue<ACE_NULL_SYNCH>::dequeue_head (this=0x7f35b648f200, first_item=@0x7f35eaffbe68, timeout=<value optimized out>)
    at /usr/local/include/ace/Message_Queue_T.cpp:1941
        ace_mon = {<No data fields>}
#3  0x00000000008b0d4b in WorldSocket::handle_output_queue (this=0x7f35b3b67580, g=...) at ../../../src/game/WorldSocket.cpp:375
        mblk = <value optimized out>
        send_len = <value optimized out>
        n = <value optimized out>
#4  0x00000000008b110a in WorldSocket::handle_output (this=0x7f35b3b67580) at ../../../src/game/WorldSocket.cpp:362
        Guard = {lock_ = 0x7f35b3b678a0, owner_ = 0}
        send_len = 0
        n = 62
#5  0x00007f363558ad7e in ACE_Dev_Poll_Reactor::upcall (this=0x7f35f26a7e80, guard=<value optimized out>) at ../../ace/Dev_Poll_Reactor.inl:90
No locals.
#6  ACE_Dev_Poll_Reactor::dispatch_io_event (this=0x7f35f26a7e80, guard=<value optimized out>) at ../../ace/Dev_Poll_Reactor.cpp:1340
        eh_guard = {eh_ = 0x7f35b3b67580, refcounted_ = true}
        info = 0x2
        disp_mask = 2
        status = 2
        eh = 0x7f35b3b67580
        reactor_resumes_eh = true
        handle = 258
        revents = <value optimized out>
#7  0x00007f363558b30e in ACE_Dev_Poll_Reactor::handle_events (this=0x7f35f26a7e80, max_wait_time=0x7f35eaffc040) at ../../ace/Dev_Poll_Reactor.cpp:1046
        countdown = {<ACE_Copy_Disabled> = {<No data fields>}, max_wait_time_ = 0x7f35eaffc040, start_time_ = {static zero = {
              static zero = <same as static member of an already seen type>, static max_time = {
                static zero = <same as static member of an already seen type>, static max_time = <same as static member of an already seen type>, tv_ = {
                  tv_sec = 0, tv_usec = 0}}, tv_ = {tv_sec = 0, tv_usec = 0}}, static max_time = <same as static member of an already seen type>, tv_ = {
              tv_sec = 1288014306, tv_usec = 329959}}, stopped_ = false}
        guard = {token_ = @0x7f35f26a7f00, owner_ = 0}
        result = -1
#8  0x00007f36355e32bd in ACE_Reactor::run_reactor_event_loop (this=0x7f35f3420508, tv=..., eh=0) at ../../ace/Reactor.cpp:271
        result = -222718344
#9  0x00000000008b4e36 in ReactorRunnable::svc (this=0x7f35f2b99678) at ../../../src/game/WorldSocketMgr.cpp:167
        interval = {static zero = {static zero = <same as static member of an already seen type>, static max_time = {
              static zero = <same as static member of an already seen type>, static max_time = <same as static member of an already seen type>, tv_ = {
                tv_sec = 0, tv_usec = 0}}, tv_ = {tv_sec = 0, tv_usec = 0}}, static max_time = <same as static member of an already seen type>, tv_ = {
            tv_sec = 0, tv_usec = 10000}}
        __FUNCTION__ = "svc"
        __PRETTY_FUNCTION__ = "virtual int ReactorRunnable::svc()"
#10 0x00007f3635608577 in ACE_Task_Base::svc_run (args=<value optimized out>) at ../../ace/Task.cpp:275
        t = 0x7f35f2b99678
        svc_status = <value optimized out>
#11 0x00007f3635609901 in ACE_Thread_Adapter::invoke (this=0x7f35f26a85e0) at ../../ace/Thread_Adapter.cpp:98
        exit_hook_instance = <value optimized out>
        exit_hook_maybe = {instance_ = 0x0}
        exit_hook_ptr = <value optimized out>
#12 0x00007f3633759a04 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#13 0x00007f3632d17d4d in clone () from /lib/libc.so.6
No symbol table info available.
#14 0x0000000000000000 in ?? ()
No symbol table info available.