> uhci0 at pci0 dev 7 function 2: Intel 82371AB USB Host Controller (PIIX4) (rev. 
> 0x01)
> uhci0: can't map i/o space
> 
> First glance tells me that this message isn't coming from the USB code, but
> somewhere deep within the bus_space code (but I could be wrong on that).
Fron what I can figure out the problem is that the BIOS doesn't set 
the I/O registers in the UHCI controller as it should.  Appearantly it
is part of the PCI specs that the BIOS should do this, but it hasn't.

        -- Lennart