>> plasmashell crashed when I'm using the non-default activity, >> then start plasmashell at yakuake didn't work as it use 100% CPU >> and don't respond. >> reboot does not help either. >> > /usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/main.qml:231:5: > QML TaskList: Binding loop detected for property "rows" Problem solved by deleting all plasma-rc file under .kde and .config and recreate the desktop panels. You may close this bug, though it is not really upstream fixed.