The segfault was easy to reproduce by opening the panel, changing to another one and then using the gsettings command line to change one of the dock options.
The 1:3.26.1-0ubuntu5 update has no segfault nor error anymore in valgrind, marking as verification-done-artful ** Changed in: gnome-control-center (Ubuntu Artful) Importance: Undecided => High ** Tags removed: verification-needed verification-needed-artful ** Tags added: verification-done verification-done-artful -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1725219 Title: /usr/bin/gnome-control- center:11:g_type_check_instance_cast:ext_ubuntu_dock_placement_changed_callback:g_closure_invoke:signal_emit_unlocked_R:g_signal_emit_valist To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1725219/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs