.
Thread 4 (LWP 12917):
#0  0x00007fdefe7be39d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fdefecfe87c in g_main_context_poll (n_fds=1, fds=0x7fdee40010e0, timeout=-1, context=0x120d5d0, priority=<optimized out>) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3653
        poll_func = 0x7fdefed0cb50 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x120d5d0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3354
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x7fdee40010e0
        nfds = 1
#3  0x00007fdefecfe9a4 in g_main_context_iteration (context=0x120d5d0, may_block=1) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3420
        retval = <optimized out>
#4  0x00007fdeecd1157d in ?? () from /tmp/apport_sandbox_ZKIvVT/usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#5  0x00007fdefed22565 in g_thread_proxy (data=0x120fc50) at /build/buildd/glib2.0-2.35.4/./glib/gthread.c:798
        thread = 0x120fc50
#6  0x00007fdefeaa0f8f in start_thread (arg=0x7fdeec4b0700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7fdeec4b0700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140595423807232, 4859823072403752334, 0, 140595782275168, 140736369287216, 4096, -4842399017088350834, -4842370146893724274}, 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  0x00007fdefe7caded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 3 (LWP 12920):
#0  0x00007fdefe7be39d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fdefecfe87c in g_main_context_poll (n_fds=1, fds=0x7fded0044840, timeout=-1, context=0x7fdee000acc0, priority=<optimized out>) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3653
        poll_func = 0x7fdefed0cb50 <g_poll>
#2  g_main_context_iterate (context=0x7fdee000acc0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3354
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x7fded0044840
        nfds = 1
#3  0x00007fdefecfed52 in g_main_loop_run (loop=0x7fdee000a3b0) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3553
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fdeda9523e4 in source_registry_object_manager_thread (data=0x7fdee0001e00) at e-source-registry.c:804
        object_manager = 0x150dbd0
        closure = 0x7fdee0001e00
        idle_source = 0x7fded00395a0
        list = 0x13fc720
        link = <optimized out>
        object_added_id = 874
        object_removed_id = 875
        __PRETTY_FUNCTION__ = "source_registry_object_manager_thread"
#5  0x00007fdefed22565 in g_thread_proxy (data=0x7fdee000a450) at /build/buildd/glib2.0-2.35.4/./glib/gthread.c:798
        thread = 0x7fdee000a450
#6  0x00007fdefeaa0f8f in start_thread (arg=0x7fded83fd700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7fded83fd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140595087529728, 4859823072403752334, 0, 140595782275168, 140595391605376, 4096, -4842426048001899122, -4842370146893724274}, 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  0x00007fdefe7caded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 2 (LWP 12918):
#0  0x00007fdefe7be39d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fdefecfe87c in g_main_context_poll (n_fds=3, fds=0x7fdedc0010c0, timeout=-1, context=0x122d150, priority=<optimized out>) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3653
        poll_func = 0x7fdefed0cb50 <g_poll>
#2  g_main_context_iterate (context=0x122d150, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3354
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x7fdedc0010c0
        nfds = 3
#3  0x00007fdefecfed52 in g_main_loop_run (loop=0x122d0e0) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3553
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fdeff2d9b76 in gdbus_shared_thread_func (user_data=0x122d120) at /build/buildd/glib2.0-2.35.4/./gio/gdbusprivate.c:277
        data = 0x122d120
#5  0x00007fdefed22565 in g_thread_proxy (data=0x122b140) at /build/buildd/glib2.0-2.35.4/./glib/gthread.c:798
        thread = 0x122b140
#6  0x00007fdefeaa0f8f in start_thread (arg=0x7fdeeb843700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7fdeeb843700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140595410777856, 4859823072403752334, 0, 140595782275168, 140736369286704, 4096, -4842398340094130802, -4842370146893724274}, 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  0x00007fdefe7caded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 1 (LWP 12914):
#0  __strchr_sse2 () at ../sysdeps/x86_64/multiarch/../strchr.S:32
No locals.
#1  0x0000000000424c37 in new_chatroom_dialog_model_selection_changed (selection=<optimized out>, self=0x316a080) at empathy-new-chatroom-dialog.c:238
        model = 0x1cc5470
        iter = {stamp = -552858514, user_data = 0x5e02f20, user_data2 = 0x0, user_data3 = 0x0}
        room = 0x0
        server = 0x0
#2  0x00007fdefefc1c97 in _g_closure_invoke_va (closure=0x16d8420, return_value=0x0, instance=0x1ed3050, args=0x7fffbd4c6198, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.35.4/./gobject/gclosure.c:840
        marshal = 0x7fdefefc38a0 <g_cclosure_marshal_VOID__VOIDv>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x16d8400
        __PRETTY_FUNCTION__ = "_g_closure_invoke_va"
#3  0x00007fdefefdba70 in g_signal_emit_valist (instance=0x1ed3050, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffbd4c6198) at /build/buildd/glib2.0-2.35.4/./gobject/gsignal.c:3225
        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 = 0x7fffbd4c6570, instance = 0x1ed3050, ihint = {signal_id = 457, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 29984768}
        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 = 0x16d8420
        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 = 0x1c90780
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#4  0x00007fdefefdc1a2 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.35.4/./gobject/gsignal.c:3370
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fffbd4c6270, reg_save_area = 0x7fffbd4c61b0}}
#5  0x00007fdefff4179d in _gtk_tree_selection_internal_select_node (selection=<optimized out>, node=<optimized out>, tree=<optimized out>, path=path@entry=0x4419ca0, mode=<optimized out>, override_browse_mode=override_browse_mode@entry=0) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtktreeselection.c:1604
        priv = <optimized out>
        dirty = <optimized out>
        anchor_path = <optimized out>
#6  0x00007fdefff56593 in gtk_tree_view_real_set_cursor (tree_view=tree_view@entry=0x30f21b0, path=path@entry=0x4419ca0, flags=flags@entry=(CLEAR_AND_SELECT | CLAMP_NODE)) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtktreeview.c:13228
        mode = <optimized out>
        new_tree = 0x0
        new_node = 0x0
#7  0x00007fdefff5a182 in gtk_tree_view_button_press (widget=0x30f21b0, event=0x1fea050) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtktreeview.c:3129
        focus_cell = <optimized out>
        pre_val = 247516
        aft_val = <optimized out>
        column_handled_click = 0
        path = 0x4419ca0
        new_y = <optimized out>
        y_offset = <optimized out>
        dval = <optimized out>
        extend_mod_mask = GDK_SHIFT_MASK
        modify_mod_mask = GDK_CONTROL_MASK
        node = 0x5c7be80
        tree = 0x4f14de0
        depth = 1
        column = 0x1d92c70
        row_double_click = 0
        node_selected = 0
        tree_view = 0x30f21b0
        list = <optimized out>
        column = 0x0
        i = <optimized out>
        background_area = {x = 60, y = 56, width = 1132, height = 23}
        cell_area = {x = 61, y = 56, width = 1130, height = 23}
        vertical_separator = 0
        horizontal_separator = 2
        rtl = 0
#8  0x00007fdeffe432dc in _gtk_marshal_BOOLEAN__BOXEDv (closure=0x11b13b0, return_value=0x7fffbd4c64f0, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x11b1710) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmarshalers.c:130
        cc = <optimized out>
        data1 = <optimized out>
        data2 = <optimized out>
        callback = <optimized out>
        arg0 = 0x1fea050
        args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffbd4c6790, reg_save_area = 0x7fffbd4c66d0}}
        v_return = <optimized out>
        __PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXEDv"
#9  0x00007fdefefc1c97 in _g_closure_invoke_va (closure=0x11b13b0, return_value=0x7fffbd4c64f0, instance=0x30f21b0, args=0x7fffbd4c66b8, n_params=1, param_types=0x11b1710) at /build/buildd/glib2.0-2.35.4/./gobject/gclosure.c:840
        marshal = 0x7fdefefc0030 <g_type_class_meta_marshalv>
        marshal_data = 0x180
        in_marshal = 0
        real_closure = 0x11b1390
        __PRETTY_FUNCTION__ = "_g_closure_invoke_va"
#10 0x00007fdefefdba70 in g_signal_emit_valist (instance=0x30f21b0, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffbd4c66b8) at /build/buildd/glib2.0-2.35.4/./gobject/gsignal.c:3225
        return_accu = <optimized out>
        accu = {g_type = 20, 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 = 0x11b15e0
        emission = {next = 0x0, instance = 0x30f21b0, ihint = {signal_id = 37, detail = 0, run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 19145120}
        signal_id = <optimized out>
        instance_type = <optimized out>
        emission_return = {g_type = 20, 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 = 20
        static_scope = 0
        closure = 0x11b13b0
        run_type = <optimized out>
        hlist = 0x11b15e0
        l = <optimized out>
        fastpath = 20
        instance_and_params = <optimized out>
        signal_return_type = <optimized out>
        param_values = <optimized out>
        node = 0x11b1730
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#11 0x00007fdefefdc1a2 in g_signal_emit (instance=instance@entry=0x30f21b0, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.35.4/./gobject/gsignal.c:3370
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fffbd4c6790, reg_save_area = 0x7fffbd4c66d0}}
#12 0x00007fdefff724de in gtk_widget_event_internal (widget=widget@entry=0x30f21b0, event=event@entry=0x1fea050) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkwidget.c:6303
        signal_num = <optimized out>
        return_val = 0
#13 0x00007fdefff728f9 in gtk_widget_event (widget=widget@entry=0x30f21b0, event=event@entry=0x1fea050) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkwidget.c:5960
        __PRETTY_FUNCTION__ = "gtk_widget_event"
#14 0x00007fdeffe4117e in propagate_event_up (topmost=<optimized out>, event=<optimized out>, widget=0x30f21b0) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmain.c:2403
        tmp = <optimized out>
        handled_event = <optimized out>
#15 propagate_event (widget=<optimized out>, event=0x1fea050, captured=<optimized out>, topmost=0x0) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmain.c:2511
        handled_event = 0
        propagate_func = 0x7fdefff72870 <gtk_widget_event>
#16 0x00007fdeffe42eb5 in gtk_main_do_event (event=0x1fea050) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmain.c:1716
        event_widget = <optimized out>
        grab_widget = 0x30f21b0
        topmost_widget = <optimized out>
        window_group = <optimized out>
        rewritten_event = <optimized out>
        device = <optimized out>
        tmp_list = <optimized out>
        __PRETTY_FUNCTION__ = "gtk_main_do_event"
#17 0x00007fdeffa725e2 in gdk_event_source_dispatch (source=source@entry=0x1200430, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+3.0-3.6.4/./gdk/x11/gdkeventsource.c:358
        display = <optimized out>
        event = 0x1fea050
#18 0x00007fdefecfe5a5 in g_main_dispatch (context=0x11a99a0) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:2784
        dispatch = 0x7fdeffa725c0 <gdk_event_source_dispatch>
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0x1200430, next = 0x0}
        need_destroy = <optimized out>
        source = 0x1200430
        current = 0x122c6a0
        i = <optimized out>
#19 g_main_context_dispatch (context=context@entry=0x11a99a0) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3288
No locals.
#20 0x00007fdefecfe8e8 in g_main_context_iterate (context=context@entry=0x11a99a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3359
        max_priority = 0
        timeout = 0
        some_ready = 1
        allocated_nfds = <optimized out>
        fds = 0x1339850
        nfds = <optimized out>
#21 0x00007fdefecfe9a4 in g_main_context_iteration (context=0x11a99a0, context@entry=0x0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.35.4/./glib/gmain.c:3420
        retval = <optimized out>
#22 0x00007fdeff2a59cc in g_application_run (application=0x11ed200, argc=argc@entry=1, argv=argv@entry=0x7fffbd4c6ae8) at /build/buildd/glib2.0-2.35.4/./gio/gapplication.c:1620
        arguments = 0x1315f50
        status = -1119068720
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#23 0x0000000000416140 in main (argc=1, argv=0x7fffbd4c6ae8) at empathy.c:842
        app = 0x11ed200
        retval = <optimized out>