#0  check_stopped (seat=0x25161e0) at seat.c:417
No locals.
#1  0x00007f8e5466ca17 in _g_closure_invoke_va (closure=0x251a340, return_value=0x0, instance=0x251a810, args=0x7fff46d69058, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.35.8/./gobject/gclosure.c:840
        marshal = 0x7f8e5466e620 <g_cclosure_marshal_VOID__VOIDv>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x251a320
        __PRETTY_FUNCTION__ = "_g_closure_invoke_va"
#2  0x00007f8e546867f0 in g_signal_emit_valist (instance=0x251a810, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fff46d69058) at /build/buildd/glib2.0-2.35.8/./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 = 0x7fff46d692b0, instance = 0x251a810, ihint = {signal_id = 25, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 38896640}
        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 = 0x251a340
        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 = 0x250e290
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#3  0x00007f8e54686f22 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:3370
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff46d69130, reg_save_area = 0x7fff46d69070}}
#4  0x00007f8e5466ca17 in _g_closure_invoke_va (closure=0x251a550, return_value=0x0, instance=0x2517100, args=0x7fff46d693f8, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.35.8/./gobject/gclosure.c:840
        marshal = 0x7f8e5466e620 <g_cclosure_marshal_VOID__VOIDv>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x251a530
        __PRETTY_FUNCTION__ = "_g_closure_invoke_va"
#5  0x00007f8e546867f0 in g_signal_emit_valist (instance=0x2517100, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fff46d693f8) at /build/buildd/glib2.0-2.35.8/./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 = 0x7fff46d69670, instance = 0x2517100, ihint = {signal_id = 14, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 38898896}
        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 = 0x251a550
        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 = 0x2518920
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#6  0x00007f8e54686f22 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:3370
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff46d694d0, reg_save_area = 0x7fff46d69410}}
#7  0x0000000000419e09 in stopped_cb (process=<optimized out>, server=0x2517100) at xserver-local.c:354
No locals.
#8  0x00007f8e5466c750 in g_closure_invoke (closure=0x251a730, return_value=0x0, n_param_values=1, param_values=0x7fff46d696e0, invocation_hint=0x7fff46d69680) at /build/buildd/glib2.0-2.35.8/./gobject/gclosure.c:777
        marshal = 0x405b80 <g_cclosure_marshal_VOID__VOID@plt>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x251a710
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#9  0x00007f8e5467e9c0 in signal_emit_unlocked_R (node=node@entry=0x2507ca0, detail=detail@entry=0, instance=instance@entry=0x250e680, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff46d696e0) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:3566
        tmp = <optimized out>
        handler = 0x250c0c0
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x250e680, ihint = {signal_id = 5, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x2507c70
        hlist = 0x250c0c0
        handler_list = 0x250c0c0
        return_accu = 0x0
        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}}}
        signal_id = 5
        max_sequential_handler_number = 19
        return_value_altered = 0
#10 0x00007f8e54686cfb in g_signal_emit_valist (instance=0x250e680, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fff46d69928) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:3314
        instance_and_params = 0x7fff46d696e0
        signal_return_type = 4
        param_values = 0x7fff46d696f8
        node = 0x2507ca0
        i = <optimized out>
        n_params = 0
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#11 0x00007f8e54686f22 in g_signal_emit (instance=<error reading variable: value has been optimized out>, signal_id=<error reading variable: value has been optimized out>, detail=<error reading variable: value has been optimized out>) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:3370
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff46d69a00, reg_save_area = 0x7fff46d69940}}
#12 0x00007f8e543a5c74 in g_child_watch_dispatch (source=source@entry=0x251e570, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:5002
        child_watch_source = 0x251e570
        child_watch_callback = <optimized out>
#13 0x00007f8e543a8e85 in g_main_dispatch (context=0x250afc0) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3054
        dispatch = 0x7f8e543a5c60 <g_child_watch_dispatch>
        was_in_call = 0
        user_data = 0x250e680
        callback = 0x40f3e0 <process_watch_cb>
        cb_funcs = 0x7f8e5465aa00 <g_source_callback_funcs>
        cb_data = 0x252f7d0
        current_source_link = {data = 0x251e570, next = 0x0}
        need_destroy = <optimized out>
        source = 0x251e570
        current = 0x2509660
        i = <optimized out>
#14 g_main_context_dispatch (context=context@entry=0x250afc0) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3630
No locals.
#15 0x00007f8e543a91c8 in g_main_context_iterate (context=0x250afc0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3701
        max_priority = 0
        timeout = 0
        some_ready = 1
        allocated_nfds = <optimized out>
        fds = 0x251e480
        nfds = <optimized out>
#16 0x00007f8e543a963a in g_main_loop_run (loop=0x250b120) at /build/buildd/glib2.0-2.35.8/./glib/gmain.c:3895
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#17 0x0000000000406d4b in main (argc=1, argv=0x7fff46d69ed8) at lightdm.c:1221
        pid_file = <optimized out>
        option_context = <optimized out>
        result = <optimized out>
        groups = 0x2518520
        i = <optimized out>
        dir = <optimized out>
        n_seats = <optimized out>
        explicit_config = <optimized out>
        test_mode = 0
        pid_path = 0x41db0a "/var/run/lightdm.pid"
        xsessions_dir = 0x0
        remote_sessions_dir = 0x0
        xgreeters_dir = 0x0
        config_dir = <optimized out>
        log_dir = 0x0
        run_dir = 0x0
        cache_dir = 0x0
        default_log_dir = <optimized out>
        default_run_dir = 0x250af50 "cache-directory"
        default_cache_dir = 0x250af70 "xsessions-directory"
        show_version = 0
        options = {{long_name = 0x41f84c "config", short_name = 99 'c', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x6289e8 <config_path>, description = 0x41db54 "Use configuration file", arg_description = 0x41db6b "FILE"}, {long_name = 0x41db70 "debug", short_name = 100 'd', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x6289f0 <debug>, description = 0x41db76 "Print debugging messages", arg_description = 0x0}, {long_name = 0x41db8f "test-mode", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff46d69b30, description = 0x41e700 "Run as unprivileged user, skipping things that require root access", arg_description = 0x0}, {long_name = 0x41db99 "pid-file", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fff46d69b38, description = 0x41dba2 "File to write PID into", arg_description = 0x41db6b "FILE"}, {long_name = 0x41dbb9 "xsessions-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fff46d69b40, description = 0x41e748 "Directory to load X sessions from", arg_description = 0x41dbc7 "DIRECTORY"}, {long_name = 0x41dbd1 "remote-sessions-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fff46d69b48, description = 0x41e770 "Directory to load remote sessions from", arg_description = 0x41dbc7 "DIRECTORY"}, {long_name = 0x41dbe5 "xgreeters-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fff46d69b50, description = 0x41e798 "Directory to load X greeters from", arg_description = 0x41dbc7 "DIRECTORY"}, {long_name = 0x41dbf3 "log-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fff46d69b58, description = 0x41dbfb "Directory to write logs to", arg_description = 0x41dbc7 "DIRECTORY"}, {long_name = 0x41dc16 "run-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fff46d69b60, description = 0x41e7c0 "Directory to store running state", arg_description = 0x41dbc7 "DIRECTORY"}, {long_name = 0x41dc1e "cache-dir", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fff46d69b68, description = 0x41e7e8 "Directory to cache information", arg_description = 0x41dbc7 "DIRECTORY"}, {long_name = 0x41dc35 "version", short_name = 118 'v', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff46d69b34, description = 0x41dc28 "Show release version", arg_description = 0x0}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}
        error = 0x0