Package: gnome-control-center Version: 1:3.29.90-1 Severity: important While trying to reproduce #906750 I found that gnome-control-center from experimental doesn't start in a qemu VM, possibly because the VM does not have any wifi devices:
user@host:~$ DISPLAY=:0 gdb gnome-control-center ... ERROR:../shell/cc-shell-model.c:458:cc_shell_model_set_panel_visibility: assertion failed: (valid) Thread 1 "gnome-control-c" received signal SIGABRT, Aborted. __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 51 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007ffff1a622f1 in __GI_abort () at abort.c:79 #2 0x00007ffff7729fa5 in g_assertion_message () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff772a00a in g_assertion_message_expr () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00005555556a2af1 in cc_shell_model_set_panel_visibility (self=0x555555efbd60, id=id@entry=0x5555556c6ba5 "wifi", visibility=visibility@entry=CC_PANEL_VISIBLE_IN_SEARCH) at ../shell/cc-shell-model.c:458 #5 0x0000555555666254 in update_panel_visibility (client=<optimized out>) at ../panels/network/cc-wifi-panel.c:112 #6 0x0000555555666ebe in cc_wifi_panel_static_init_func () at ../panels/network/cc-wifi-panel.c:141 #7 0x00005555555abbb3 in cc_panel_loader_fill_model (model=0x555555efbd60) at ../shell/cc-panel-loader.c:214 #8 0x00005555555afcc8 in setup_model (shell=0x5555560e23b0) at ../shell/cc-shell-model.h:31 #9 cc_window_constructed (object=0x5555560e23b0) at ../shell/cc-window.c:767 #10 0x00007ffff79e2760 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #11 0x00007ffff79e4420 in g_object_new_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #12 0x00007ffff79e4799 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #13 0x00005555555b036c in cc_window_new (application=0x555555a6e320, model=model@entry=0x555555efbd60) at ../shell/cc-window.c:885 #14 0x00005555555aa62a in cc_application_startup (application=0x555555a6e320) at ../shell/cc-application.c:265 #15 0x00007ffff79dcf6d in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #16 0x00007ffff79efe0e in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #17 0x00007ffff79f83f5 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #18 0x00007ffff79f8e0f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #19 0x00007ffff7cc30a2 in g_application_register () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #20 0x00007ffff7cc38b7 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #21 0x00007ffff7cc3c46 in g_application_run () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 #22 0x00005555555a9c51 in main (argc=<optimized out>, argv=<optimized out>) at ../shell/main.c:57 The failing assertion is: /* If we don't find any panel with the given id, we'll iterate until * valid == FALSE, so we can use this variable to determine if the * panel was found or not. It is a programming error to try to set * the visibility of a non-existant panel. */ g_assert (valid); but perhaps the wifi panel doesn't always appear? This does not seem to be the same crash as #906750 - installing avahi-daemon, or installing gnome-core and all of gnome-control-center's Recommends, does not fix it. smcv