How do i run buggy segfault software on real hardware after logging in as root at the X Login (by using Xserver as root) (you can trust X11 probably, twm probably: many x11 apps or gnome, no way)
You dont: have fun rebooting! Your hardware might be damaged!
The original reason for cpu security (even old processors had it) was to prevent glass tube transistors from melting.
and still: root access can damage your hardware (ie, even by authorizing a refusal to serve an interrupt when the same is critical).
your safer to run as a user unless doing something critical. and if your doing something critcal you probably shouldn't be using "buggy desktop software" to do it
ie, if i run "really buggy software" as root not only might i get segfaults i might start hearing the PC fan change speed before the pc locks up. NOT GOOD.
(today's root access is actually partly protected by drivers and kernel - but it's still not a good idea to run buggy software on bad hardware (all video cards are, as far as unix is concerned, bad hardware) )