. Thread 4 (LWP 19572): #0 0x00007f4ba835e3cd in poll () at ../sysdeps/unix/syscall-template.S:81 No locals. #1 0x00007f4ba8bd915c in g_main_context_poll (n_fds=3, fds=0x7f4b940010c0, timeout=-1, context=0x7f4b9c00e880, priority=) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3995 poll_func = 0x7f4ba8be7550 #2 g_main_context_iterate (context=0x7f4b9c00e880, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3696 max_priority = 2147483647 timeout = -1 some_ready = allocated_nfds = fds = 0x7f4b940010c0 nfds = 3 #3 0x00007f4ba8bd963a in g_main_loop_run (loop=0x7f4b9c00e810) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3895 __PRETTY_FUNCTION__ = "g_main_loop_run" #4 0x00007f4ba91b50c6 in gdbus_shared_thread_func (user_data=0x7f4b9c00e850) at /build/buildd/glib2.0-2.35.7/./gio/gdbusprivate.c:278 data = 0x7f4b9c00e850 #5 0x00007f4ba8bfd075 in g_thread_proxy (data=0x7f4b9c00c320) at /build/buildd/glib2.0-2.35.7/./glib/gthread.c:798 thread = 0x7f4b9c00c320 #6 0x00007f4ba8640f8e in start_thread (arg=0x7f4ba16f1700) at pthread_create.c:311 __res = pd = 0x7f4ba16f1700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139962807686912, -1829279885658176181, 0, 139962962128992, 139962816076080, 4096, 1732291001331205451, 1732275530796746059}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #7 0x00007f4ba836ae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 3 (LWP 19571): #0 0x00007f4ba835e3cd in poll () at ../sysdeps/unix/syscall-template.S:81 No locals. #1 0x00007f4ba8bd915c in g_main_context_poll (n_fds=1, fds=0x7f4b9c0010e0, timeout=-1, context=0x7f4bacabcac0, priority=) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3995 poll_func = 0x7f4ba8be7550 #2 g_main_context_iterate (context=context@entry=0x7f4bacabcac0, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3696 max_priority = 2147483647 timeout = -1 some_ready = allocated_nfds = fds = 0x7f4b9c0010e0 nfds = 1 #3 0x00007f4ba8bd9284 in g_main_context_iteration (context=context@entry=0x7f4bacabcac0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3762 retval = #4 0x00007f4ba273557d in dconf_gdbus_worker_thread (user_data=0x7f4bacabcac0) at dconf-gdbus-thread.c:81 context = 0x7f4bacabcac0 #5 0x00007f4ba8bfd075 in g_thread_proxy (data=0x7f4bacaaf630) at /build/buildd/glib2.0-2.35.7/./glib/gthread.c:798 thread = 0x7f4bacaaf630 #6 0x00007f4ba8640f8e in start_thread (arg=0x7f4ba1ef2700) at pthread_create.c:311 __res = pd = 0x7f4ba1ef2700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139962816079616, -1829279885658176181, 0, 139962962128992, 140735197768928, 4096, 1732289902356448587, 1732275530796746059}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #7 0x00007f4ba836ae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 2 (LWP 19577): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 No locals. #1 0x00007f4ba8c18c05 in g_cond_wait_until (cond=cond@entry=0x7f4bacd85448, mutex=mutex@entry=0x7f4bacd85440, end_time=end_time@entry=827913459) at /build/buildd/glib2.0-2.35.7/./glib/gthread-posix.c:859 ts = {tv_sec = 827, tv_nsec = 913459000} status = #2 0x00007f4ba8baebb1 in g_async_queue_pop_intern_unlocked (queue=queue@entry=0x7f4bacd85440, wait=wait@entry=1, end_time=end_time@entry=827913459) at /build/buildd/glib2.0-2.35.7/./glib/gasyncqueue.c:424 retval = __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked" #3 0x00007f4ba8baf1fa in g_async_queue_timeout_pop (queue=0x7f4bacd85440, timeout=timeout@entry=15000000) at /build/buildd/glib2.0-2.35.7/./glib/gasyncqueue.c:545 end_time = 827913459 retval = #4 0x00007f4ba8bfd872 in g_thread_pool_wait_for_new_pool () at /build/buildd/glib2.0-2.35.7/./glib/gthreadpool.c:169 pool = local_max_idle_time = 15000 local_wakeup_thread_serial = local_max_unused_threads = 2 last_wakeup_thread_serial = 0 have_relayed_thread_marker = 0 #5 g_thread_pool_thread_proxy (data=) at /build/buildd/glib2.0-2.35.7/./glib/gthreadpool.c:366 free_pool = task = 0x2 pool = #6 0x00007f4ba8bfd075 in g_thread_proxy (data=0x7f4b94003990) at /build/buildd/glib2.0-2.35.7/./glib/gthread.c:798 thread = 0x7f4b94003990 #7 0x00007f4ba8640f8e in start_thread (arg=0x7f4b627cd700) at pthread_create.c:311 __res = pd = 0x7f4b627cd700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139961751623424, -1829279885658176181, 0, 139962962128992, 140735197770464, 4096, 1732710870891611467, 1732275530796746059}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #8 0x00007f4ba836ae1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 1 (LWP 19570): #0 0x00007f4b606b0341 in ?? () No symbol table info available. #1 0x00007f4bad0d61c0 in ?? () No symbol table info available. #2 0x00007f4b5b54e086 in ?? () No symbol table info available. #3 0x00007f4ba8e9eb50 in ?? () at /build/buildd/glib2.0-2.35.7/./gobject/gmarshal.c:370 from /tmp/apport_sandbox_KiCj9Q/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No locals. #4 0x00007f4ba8e9ebd1 in g_cclosure_marshal_VOID__INTv (closure=, return_value=, instance=, args=, marshal_data=, n_params=, param_types=0x7f4bad076140) at /build/buildd/glib2.0-2.35.7/./gobject/gmarshal.c:410 cc = data1 = data2 = callback = arg0 = args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff77786750, reg_save_area = 0x7fff77786690}} #5 0x00007f4ba8e9ca37 in _g_closure_invoke_va (closure=0x7f4bad0dbfd0, return_value=0x0, instance=0x7f4bad0d62d0, args=0x7fff77786678, n_params=1, param_types=0x7f4bad076140) at /build/buildd/glib2.0-2.35.7/./gobject/gclosure.c:840 marshal = 0x7f4bad0d61c0 marshal_data = 0x0 in_marshal = 0 real_closure = 0x7f4bad0dbfb0 __PRETTY_FUNCTION__ = "_g_closure_invoke_va" #6 0x00007f4ba8eb6810 in g_signal_emit_valist (instance=0x7f4bad0d62d0, signal_id=, detail=0, var_args=var_args@entry=0x7fff77786678) at /build/buildd/glib2.0-2.35.7/./gobject/gsignal.c:3225 return_accu = 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 = 0x7fff777868d0, instance = 0x7f4bad0d62d0, ihint = {signal_id = 352, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 139963002142832} signal_id = instance_type = 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 = 0x7f4bad0dbfd0 run_type = hlist = 0x0 l = fastpath = 4 instance_and_params = signal_return_type = param_values = node = 0x7f4bad0760d0 i = n_params = __PRETTY_FUNCTION__ = "g_signal_emit_valist" #7 0x00007f4ba8eb6f42 in g_signal_emit (instance=, signal_id=, detail=) at /build/buildd/glib2.0-2.35.7/./gobject/gsignal.c:3370 var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff77786750, reg_save_area = 0x7fff77786690}} #8 0x00007f4ba8e9ca37 in _g_closure_invoke_va (closure=0x7f4bad116f90, return_value=0x0, instance=0x7f4bad05a530, args=0x7fff77786a18, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.35.7/./gobject/gclosure.c:840 marshal = 0x7f4ba8e9e640 marshal_data = 0x0 in_marshal = 0 real_closure = 0x7f4bad116f70 __PRETTY_FUNCTION__ = "_g_closure_invoke_va" #9 0x00007f4ba8eb6810 in g_signal_emit_valist (instance=0x7f4bad05a530, signal_id=, detail=0, var_args=var_args@entry=0x7fff77786a18) at /build/buildd/glib2.0-2.35.7/./gobject/gsignal.c:3225 return_accu = 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 = 0x7fff77786ca0, instance = 0x7f4bad05a530, ihint = {signal_id = 167, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 139962996714816} signal_id = instance_type = 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 = 0x7f4bad116f90 run_type = hlist = 0x0 l = fastpath = 4 instance_and_params = signal_return_type = param_values = node = 0x7f4bacb372c0 i = n_params = __PRETTY_FUNCTION__ = "g_signal_emit_valist" #10 0x00007f4ba8eb6f42 in g_signal_emit (instance=, signal_id=, detail=) at /build/buildd/glib2.0-2.35.7/./gobject/gsignal.c:3370 var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff77786af0, reg_save_area = 0x7fff77786a30}} #11 0x00007f4baa0185a8 in gtk_real_button_released (button=0x7f4bad05a530) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkbutton.c:1967 priv = #12 0x00007f4ba8e9c770 in g_closure_invoke (closure=0x7f4bacac9ce0, return_value=0x0, n_param_values=1, param_values=0x7fff77786d10, invocation_hint=0x7fff77786cb0) at /build/buildd/glib2.0-2.35.7/./gobject/gclosure.c:777 marshal = 0x7f4ba8e9b3d0 marshal_data = 0x3f8 in_marshal = 0 real_closure = 0x7f4bacac9cc0 __PRETTY_FUNCTION__ = "g_closure_invoke" #13 0x00007f4ba8eae313 in signal_emit_unlocked_R (node=node@entry=0x7f4bacb37200, detail=detail@entry=0, instance=instance@entry=0x7f4bad05a530, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff77786d10) at /build/buildd/glib2.0-2.35.7/./gobject/gsignal.c:3496 accumulator = 0x0 emission = {next = 0x7fff77787220, instance = 0x7f4bad05a530, ihint = {signal_id = 166, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 139962996714816} class_closure = 0x7f4bacac9ce0 hlist = 0x0 handler_list = 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 = 166 max_sequential_handler_number = 1280 return_value_altered = #14 0x00007f4ba8eb6d1b in g_signal_emit_valist (instance=0x7f4bad05a530, signal_id=, detail=0, var_args=var_args@entry=0x7fff77786f58) at /build/buildd/glib2.0-2.35.7/./gobject/gsignal.c:3314 instance_and_params = 0x7fff77786d10 signal_return_type = 4 param_values = 0x7fff77786d28 node = 0x7f4bacb37200 i = n_params = 0 __PRETTY_FUNCTION__ = "g_signal_emit_valist" #15 0x00007f4ba8eb6f42 in g_signal_emit (instance=, signal_id=, detail=detail@entry=0) at /build/buildd/glib2.0-2.35.7/./gobject/gsignal.c:3370 var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff77787030, reg_save_area = 0x7fff77786f70}} #16 0x00007f4baa017313 in gtk_button_button_release (widget=, event=) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkbutton.c:1802 button = #17 gtk_button_button_release (widget=, event=) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkbutton.c:1794 No locals. #18 0x00007f4baa0e65ac in _gtk_marshal_BOOLEAN__BOXEDv (closure=0x7f4baca674f0, return_value=0x7fff777871a0, instance=, args=, marshal_data=, n_params=, param_types=0x7f4baca67520) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmarshalers.c:130 cc = data1 = data2 = callback = arg0 = 0x7f4bad014f20 args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff77787440, reg_save_area = 0x7fff77787380}} v_return = __PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXEDv" #19 0x00007f4ba8e9ca37 in _g_closure_invoke_va (closure=0x7f4baca674f0, return_value=0x7fff777871a0, instance=0x7f4bad05a530, args=0x7fff77787368, n_params=1, param_types=0x7f4baca67520) at /build/buildd/glib2.0-2.35.7/./gobject/gclosure.c:840 marshal = 0x7f4ba8e9add0 marshal_data = 0x188 in_marshal = 0 real_closure = 0x7f4baca674d0 __PRETTY_FUNCTION__ = "_g_closure_invoke_va" #20 0x00007f4ba8eb6810 in g_signal_emit_valist (instance=0x7f4bad05a530, signal_id=, detail=0, var_args=var_args@entry=0x7fff77787368) at /build/buildd/glib2.0-2.35.7/./gobject/gsignal.c:3225 return_accu = 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 = 0x7f4baca673a0 emission = {next = 0x0, instance = 0x7f4bad05a530, ihint = {signal_id = 29, detail = 0, run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 139962996714816} signal_id = instance_type = 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 = 0x7f4baca674f0 run_type = hlist = 0x7f4baca673a0 l = fastpath = 20 instance_and_params = signal_return_type = param_values = node = 0x7f4baca67540 i = n_params = __PRETTY_FUNCTION__ = "g_signal_emit_valist" #21 0x00007f4ba8eb6f42 in g_signal_emit (instance=instance@entry=0x7f4bad05a530, signal_id=, detail=detail@entry=0) at /build/buildd/glib2.0-2.35.7/./gobject/gsignal.c:3370 var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff77787440, reg_save_area = 0x7fff77787380}} #22 0x00007f4baa21577e in gtk_widget_event_internal (widget=widget@entry=0x7f4bad05a530, event=event@entry=0x7f4bad014f20) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkwidget.c:6303 signal_num = return_val = 0 #23 0x00007f4baa215b99 in gtk_widget_event (widget=widget@entry=0x7f4bad05a530, event=event@entry=0x7f4bad014f20) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkwidget.c:5960 __PRETTY_FUNCTION__ = "gtk_widget_event" #24 0x00007f4baa0e444e in propagate_event_up (topmost=, event=, widget=0x7f4bad05a530) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmain.c:2403 tmp = handled_event = #25 propagate_event (widget=, event=0x7f4bad014f20, captured=, topmost=0x0) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmain.c:2511 handled_event = 0 propagate_func = 0x7f4baa215b10 #26 0x00007f4baa0e6185 in gtk_main_do_event (event=0x7f4bad014f20) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmain.c:1716 event_widget = grab_widget = 0x7f4bad05a530 topmost_widget = window_group = rewritten_event = device = tmp_list = __PRETTY_FUNCTION__ = "gtk_main_do_event" #27 0x00007f4ba9d155e2 in gdk_event_source_dispatch (source=source@entry=0x7f4bacaad260, callback=, user_data=) at /build/buildd/gtk+3.0-3.6.4/./gdk/x11/gdkeventsource.c:358 display = event = 0x7f4bad014f20 #28 0x00007f4ba8bd8e85 in g_main_dispatch (context=0x7f4baca8f470) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3054 dispatch = 0x7f4ba9d155c0 was_in_call = 0 user_data = 0x0 callback = 0x0 cb_funcs = 0x0 cb_data = 0x0 current_source_link = {data = 0x7f4bacaad260, next = 0x0} need_destroy = source = 0x7f4bacaad260 current = 0x7f4bacaad670 i = #29 g_main_context_dispatch (context=context@entry=0x7f4baca8f470) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3630 No locals. #30 0x00007f4ba8bd91c8 in g_main_context_iterate (context=context@entry=0x7f4baca8f470, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3701 max_priority = 2147483647 timeout = 518 some_ready = 1 allocated_nfds = fds = 0x7f4bacf35b80 nfds = #31 0x00007f4ba8bd9284 in g_main_context_iteration (context=0x7f4baca8f470, context@entry=0x0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.35.7/./glib/gmain.c:3762 retval = #32 0x00007f4ba9180f7c in g_application_run (application=0x7f4b9c0068b0, argc=argc@entry=1, argv=argv@entry=0x7fff77787798) at /build/buildd/glib2.0-2.35.7/./gio/gapplication.c:1620 arguments = 0x7f4bacf26f80 status = -1391631696 i = __PRETTY_FUNCTION__ = "g_application_run" #33 0x00007f4baaa442ba in main (argc=1, argv=0x7fff77787798) at control-center.c:263 shell = application = 0x7f4b9c0068b0 status =