.
Thread 2 (Thread 4338):
#0  0x00007fb1b5229c38 in epoll_wait () from /lib/libc.so.6
#1  0x00007fb1b687e71b in ?? () from /usr/lib/libevent-1.4.so.2
#2  0x00007fb1b6871ded in event_base_loop () from /usr/lib/libevent-1.4.so.2
#3  0x000000000045adcd in ?? ()
#4  0x00007fb1b6434a04 in start_thread () from /lib/libpthread.so.0
#5  0x00007fb1b52295fd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()
.
Thread 1 (Thread 4337):
#0  0x00007fb1b5f5e1e0 in g_markup_escape_text ()
   from /usr/lib/libglib-2.0.so.0
#1  0x00007fb1b76e2cad in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#2  0x00007fb1b61f86ae in g_object_set_valist ()
   from /usr/lib/libgobject-2.0.so.0
#3  0x00007fb1b61f8c74 in g_object_set () from /usr/lib/libgobject-2.0.so.0
#4  0x0000000000439773 in ?? ()
#5  0x00007fb1b61f367e in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#6  0x00007fb1b6209856 in ?? () from /usr/lib/libgobject-2.0.so.0
#7  0x00007fb1b620ac9e in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#8  0x00007fb1b620b223 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#9  0x0000000000431c7c in tr_core_set_pref_int ()
#10 0x0000000000433e03 in ?? ()
#11 0x00007fb1b71bbc16 in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#12 0x00007fb1b5f5a19b in ?? () from /usr/lib/libglib-2.0.so.0
#13 0x00007fb1b5f59a8e in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#14 0x00007fb1b5f5d458 in ?? () from /usr/lib/libglib-2.0.so.0
#15 0x00007fb1b5f5d8b5 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#16 0x00007fb1b75a99b7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#17 0x0000000000429539 in main ()