Re: GGI Project Unhappy On Linux

Matthew Kirkwood (weejock@ferret.lmh.ox.ac.uk)
Sat, 28 Mar 1998 10:15:15 +0000 (GMT)


On Sat, 28 Mar 1998, Marek Habersack wrote:

> > > The current X uses a server wrapper to do the suid root tasks. The
> > > server itself isn't suid root.
> >
> > It's quite possible that I'm missing something, but I seem to recall
> > that that was done for security reasons.
>
> Of course - that's what we say.
>
> > A process running at ring 0 can still disable interrupts, DMA into
> > kernel memory, etc...
>
> But the Xserver isn't running in the kernel mode.

I may have missed something, but the difference between iopl 3 and "kernel
mode" is...?

Matthew.

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