On Wed, 2007-01-03 at 16:14 -0500, Mike Frysinger wrote: [...] > while i can see a valid use for allowing physical memory access to The trivial valid use is: The hardware below defines it that way. > address 0 (but only in an embedded system), i cannot think of one good Intel Pentiums (and 80[34]86) have/had the interrupt table there (at löeast in the realmode). > reason to allow access to virtual address 0 in light of all the debug > catching Bernd -- Firmix Software GmbH http://www.firmix.at/ mobil: +43 664 4416156 fax: +43 1 7890849-55 Embedded Linux Development and Services -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
