.
Thread 4 (Thread 0x7f3fbfe27700 (LWP 21344)):
#0  0x00007f3fc82829e3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007f3fc8d5fde4 in g_main_context_poll (n_fds=3, fds=0x7f3fb80010c0, timeout=-1, context=0x1e2b220, priority=<optimized out>) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3584
        poll_func = 0x7f3fc8d6df30 <g_poll>
#2  g_main_context_iterate (context=0x1e2b220, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3285
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = <optimized out>
        fds = 0x7f3fb80010c0
#3  0x00007f3fc8d60242 in g_main_loop_run (loop=0x1e2b1b0) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3484
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007f3fc9555796 in gdbus_shared_thread_func (user_data=0x1e2b1f0) at /build/buildd/glib2.0-2.33.12/./gio/gdbusprivate.c:277
        data = 0x1e2b1f0
#5  0x00007f3fc8d83915 in g_thread_proxy (data=0x1e6d0f0) at /build/buildd/glib2.0-2.33.12/./glib/gthread.c:797
        thread = 0x1e6d0f0
#6  0x00007f3fc8561e9a in start_thread (arg=0x7f3fbfe27700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f3fbfe27700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3551268308199762535, 140736894773856, 139911778957760, 0, 3, -3515098605633836441, -3515284798440904089}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f3fc828e39d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (Thread 0x7f3fbe5e6700 (LWP 21346)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
No locals.
#1  0x00007f3fc8d9d215 in g_cond_wait_until (cond=cond@entry=0x1ecf4a8, mutex=mutex@entry=0x1ecf4a0, end_time=end_time@entry=88465782659) at /build/buildd/glib2.0-2.33.12/./glib/gthread-posix.c:855
        ts = {tv_sec = 88465, tv_nsec = 782659000}
        status = <optimized out>
#2  0x00007f3fc8d36621 in g_async_queue_pop_intern_unlocked (queue=0x1ecf4a0, wait=wait@entry=1, end_time=88465782659) at /build/buildd/glib2.0-2.33.12/./glib/gasyncqueue.c:424
        retval = <optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007f3fc8d36cc8 in g_async_queue_timeout_pop_unlocked (queue=<optimized out>, timeout=timeout@entry=500000) at /build/buildd/glib2.0-2.33.12/./glib/gasyncqueue.c:572
        end_time = <optimized out>
#4  0x00007f3fc8d8406a in g_thread_pool_wait_for_new_task (pool=0x1ecf440) at /build/buildd/glib2.0-2.33.12/./glib/gthreadpool.c:264
        task = <optimized out>
#5  g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.33.12/./glib/gthreadpool.c:298
        task = 0x1ecf3f0
        pool = 0x1ecf440
#6  0x00007f3fc8d83915 in g_thread_proxy (data=0x1ec61e0) at /build/buildd/glib2.0-2.33.12/./glib/gthread.c:797
        thread = 0x1ec61e0
#7  0x00007f3fc8561e9a in start_thread (arg=0x7f3fbe5e6700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f3fbe5e6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3551268308199762535, 140736894773904, 139911753525696, 0, 3, -3515095753238680985, -3515284798440904089}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007f3fc828e39d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7f3fbf41b700 (LWP 21345)):
#0  0x00007f3fc82829e3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007f3fc8d5fde4 in g_main_context_poll (n_fds=1, fds=0x7f3fb00010c0, timeout=-1, context=0x1eb6e40, priority=<optimized out>) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3584
        poll_func = 0x7f3fc8d6df30 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x1eb6e40, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3285
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0x7f3fb00010c0
#3  0x00007f3fc8d5ff04 in g_main_context_iteration (context=context@entry=0x1eb6e40, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3351
        retval = <optimized out>
#4  0x00007f3fbf42235d in dconf_gdbus_worker_thread (user_data=0x1eb6e40) at dconf-gdbus-thread.c:81
        context = 0x1eb6e40
#5  0x00007f3fc8d83915 in g_thread_proxy (data=0x1eb1680) at /build/buildd/glib2.0-2.33.12/./glib/gthread.c:797
        thread = 0x1eb1680
#6  0x00007f3fc8561e9a in start_thread (arg=0x7f3fbf41b700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f3fbf41b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3551268308199762535, 140736894775984, 139911768422848, 0, 3, -3515097757377795481, -3515284798440904089}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f3fc828e39d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7f3fcb07c980 (LWP 21343)):
#0  g_action_muxer_insert (muxer=0x1f14f30, prefix=0x7f3fcab0a11d "app", action_group=0x1eb2150) at /build/buildd/gtk+3.0-3.5.16/./gtk/gactionmuxer.c:645
        actions = <optimized out>
        group = 0x1eaf8c0
        i = <optimized out>
#1  0x00007f3fcaaae2e4 in gtk_window_set_application (window=window@entry=0x1ec1060, application=application@entry=0x1eb2150) at /build/buildd/gtk+3.0-3.5.16/./gtk/gtkwindow.c:2845
        priv = 0x1ec1150
        __PRETTY_FUNCTION__ = "gtk_window_set_application"
#2  0x00007f3fca85536c in gtk_application_window_added (application=0x1eb2150, window=window@entry=0x1ec1060) at /build/buildd/gtk+3.0-3.5.16/./gtk/gtkapplication.c:507
        priv = 0x1eb21d0
#3  0x00007f3fc9022744 in g_cclosure_marshal_VOID__OBJECTv (closure=0x1eb0540, return_value=<optimized out>, instance=0x1eb2150, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x1eb0570) at /build/buildd/glib2.0-2.33.12/./gobject/gmarshal.c:1312
        cc = 0x1eb0540
        data1 = <optimized out>
        data2 = <optimized out>
        callback = 0x7f3fca855340 <gtk_application_window_added>
        arg0 = 0x1ec1060
        args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffdc9eb670, reg_save_area = 0x7fffdc9eb5b0}}
#4  0x00007f3fc901f487 in _g_closure_invoke_va (closure=0x1eb0540, return_value=0x0, instance=0x1eb2150, args=0x7fffdc9eb598, n_params=1, param_types=0x1eb0570) at /build/buildd/glib2.0-2.33.12/./gobject/gclosure.c:840
        marshal = 0x7f3fc901d820 <g_type_class_meta_marshalv>
        marshal_data = 0x138
        in_marshal = 0
        real_closure = 0x1eb0520
        __PRETTY_FUNCTION__ = "_g_closure_invoke_va"
#5  0x00007f3fc9038fd8 in g_signal_emit_valist (instance=0x1eb2150, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffdc9eb598) at /build/buildd/glib2.0-2.33.12/./gobject/gsignal.c:3211
        return_accu = <optimized out>
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x1eb2150, ihint = {signal_id = 199, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 32175840}
        signal_id = <optimized out>
        instance_type = <optimized out>
        emission_return = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        rtype = 4
        static_scope = 0
        closure = 0x1eb0540
        run_type = <optimized out>
        hlist = 0x0
        l = <optimized out>
        fastpath = 4
        instance_and_params = <optimized out>
        signal_return_type = <optimized out>
        param_values = <optimized out>
        node = 0x1eb0c80
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#6  0x00007f3fc9039712 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.33.12/./gobject/gsignal.c:3356
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fffdc9eb670, reg_save_area = 0x7fffdc9eb5b0}}
#7  0x0000000000413a39 in application_construct ()
No symbol table info available.
#8  0x00000000004171fd in gl_chess_main ()
No symbol table info available.
#9  0x00007f3fc81bd76d in __libc_start_main (main=0x40da60 <main>, argc=1, ubp_av=0x7fffdc9eb818, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffdc9eb808) at libc-start.c:226
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3551268308199762535, 4250240, 140736894777360, 0, 0, -3551340607276750233, -3515284349324268953}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x42d8d0, 0x7fffdc9eb818}, data = {prev = 0x0, cleanup = 0x0, canceltype = 4380880}}}
        not_first_call = <optimized out>
#10 0x000000000040daa9 in _start ()
No symbol table info available.