> > short, xdm was causing 'shared memory corrupt' errors in my correctly 
> > configured ed0 driver by reading from the card's shared memory 
> > through /dev/mem.
> 
> Why was xdm reading /dev/mem in the first place?

That's, uh, how it generates random numbers...  It's caused a problem
before, on hp300 dca (or was it dcm) boards.

There's some merit to generating random numbers this way...  but it
has some serious problems...


cgd