Description of problem: I tried to enable gtk inspector (ctrl+shift+d) in gtk3-demo. When I tried it again, it worked correctly. Version-Release number of selected component: gtk3-devel-3.19.4-1.fc24 Additional info: reporter: libreport-2.6.3 backtrace_rating: 4 cmdline: gtk3-demo crash_function: g_type_check_instance_is_a executable: /usr/bin/gtk3-demo global_pid: 21952 kernel: 4.4.0-0.rc4.git4.1.fc24.x86_64 runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 g_type_check_instance_is_a at gtype.c:4021 #1 gtk_widget_get_scale_factor at gtkwidget.c:10957 #2 gtk_css_widget_node_get_style_provider at gtkcsswidgetnode.c:244 #3 gtk_css_node_get_style_provider_or_null at gtkcssnode.c:103 #4 gtk_css_node_invalidate_style_provider at gtkcssnode.c:1279 #13 _gtk_style_provider_private_changed at gtkstyleproviderprivate.c:113 #14 gtk_css_provider_load_from_file at gtkcssprovider.c:2942 #15 gtk_css_provider_load_from_resource at gtkcssprovider.c:3012 #16 _gtk_css_provider_load_named at gtkcssprovider.c:3179 #17 settings_update_theme at gtksettings.c:3212
Created attachment 1106007 [details] File: backtrace
Created attachment 1106008 [details] File: cgroup
Created attachment 1106009 [details] File: core_backtrace
Created attachment 1106010 [details] File: dso_list
Created attachment 1106011 [details] File: environ
Created attachment 1106012 [details] File: exploitable
Created attachment 1106013 [details] File: limits
Created attachment 1106014 [details] File: maps
Created attachment 1106015 [details] File: mountinfo
Created attachment 1106016 [details] File: namespaces
Created attachment 1106017 [details] File: open_fds
Created attachment 1106018 [details] File: proc_pid_status
Created attachment 1106019 [details] File: var_log_messages
this should be fixed in 3.19.6