Comment # 2 on bug 1050897 from Ladislav Slez�k

Is the system completely frozen or just YaST is not responding? Can you e.g.
move the mouse cursor? Or switch to a different console (Ctrl+Shift+Alt+F2)?

If yes then attach the YaST logs please, see
https://en.opensuse.org/openSUSE:Report_a_YaST_bug for more details.