At work we recently got a newer Pentium 120 box (chronicled a while back in
a posting I made about not being able to see the disk when I swapped in an
Adaptec 1542CF for the supplied Adaptec 2940W).  Now that 1.1 supports the
Adaptec 2940W controller, I decided to shove in the NetBSD boot disks and
see what would happen.

I'm confused by a series of strange PCI-related messages I see at boot time:

...
root device eisa not configured
pci0 (root): configuration mode 2
pci0 bus 0 device 0: unknown vendor/product: 0x1069/0x1451 (class: bridge,
subclass: host, revision 0xbd) not configured
pci0 bus 0 device 2: unknown vendor/product: 0x1069/0x1449 (class: prehistoric,
subclass: miscellaneous, revision: 0xb2) not configured
ahc0 at pci0 bus 0 device 5: 294x Single Channel, SCSI Id=7, aic7870, 16 SCBs
ahc0: Using Edge Triggered Interrupts
ahc0: Downloading Sequencer Program... Done
ahc0: Probing channel A
scsibus0 at ahc0
ahc0 targ 0 lun 0: <CONNER, CFP2107S   2.14GB, 2B4B>  SCSI2  0/direct fixed
sd0 at scsibus0: 2048 MB, 3999 cyl, 10 head, 104 sec, 512 bytes/sec
probe(ahc0:5:0): Target Busy
probe(ahc0:5:0): Target Busy
ahc0 targ 5 lun 0: <EXABYTE, EXB-8200, 253X>  SCSI1  1/sequential removable
st0(ahc0:5:0) Target Busy
st0(ahc0:5:0) Target Busy
drive empty
pci_map_int: pin A mapped to line 11
pci0 bus 0 device 6: unknown vendor/product: 0x1002/0c4758 (class: display,
subclass: VGA, revision: 0x01) not configured
pci0 bus 0 device 7: unknown vendor/product: 0x1095/0x0640 (class: mass storage,
subclass: IDE, revision: 0x02) not configured
...

As far as I know, the machine has 3 PCI slots, and there's only the Adaptec
in one of them.  There's an Acer IDE ATAPI CD-ROM drive, which seems to be
attached directly to the motherboard.  (There's also a SoundBlaster card of
some sort which wasn't found, but that seems to be on the ISA bus anyway.)
That seems to be the only thing which isn't found.

Thus, I'm puzzled - what are these messages about phantom things seen at
"device 0", "device 2", "device 6" and "device 7" all about?  The system has
a Mach64 video card, but I think that's on the ISA bus too (I presume that's
why I get a "pc0 at isa0 port 0x60-0x6f irq 1: color" probe line).

What is a "bridge"?  What the heck is "prehistoric"/"miscellaneous"?
Why does it think it seems a phantom VGA device?  Is the "mass storage"/"IDE"
phantom the IDE ATAPI CD-ROM?

Any help with deciphering these (and whether I should worry about them) would
be appreciated!

Thanks,

	- Greg

P.S. Please respond directly to me, as I'm not (yet) on port-i386.  Thanks.