I just installed 1.6 on a p2-333, 192 RAM, same system that works
perfectly with 1.5.3.

At start up I get a lot of "can't map i/o space" messages from drivers
attach routines.

It seems like pci_mapreg_map is always failing.

specifically, the calls to pci_mapreg_map fail from the following drivers:
 dev/pci/uhci_pci.c
 dev/pci/if_rtk_pci.c
 dev/pci/emuxki.c

As far as I can tell, the drivers are identical to the ones in 1.5.3.
The only pci cards in the system are the rtk card and the emuxki card.

I believe that those are the only places in my startup where
pci_mapreg_map is called.

Has anyone experienced a similar problem?

Thanks
Ben