How do *you* debug device drivers?

[Brandon Allbery the tame hacker on the North Coast]

System V may be on its way to a solution.  It seems to me that someone
could write a 'fake kernel' to run as a Unix user process, and use that
to debug device drivers., provided that a user address space can be >256K.
(of course, 512K might also do, since it wouldn't have to be a full multiuser
kernel, just a device driver debugging aid).

--bsa
-- 
  Brandon Allbery @ decvax!cwruecmp!ncoast!bsa (..ncoast!tdi1!bsa business)
	6504 Chestnut Road, Independence, Ohio 44131   (216) 524-1416
    Who said you had to be (a) a poor programmer or (b) a security hazard
			     to be a hacker?