I just found that the problems with the com ports also go away when I
disable cache.

Is there something special that I should do to get the cache working
(assuming that it isn't a bad motherboard in the first place).

"D. J. Newman" writes:
> Hi:
> 
> I am putting together a system with a Tyan Tomcat III (single pentium)
> motherboard, and I am trying to install NetBSD 1.2 from the
> installation disks.
> 
> The first disk boots fine. When I get to the installation disk, I get
> the following message:
> 
> com0 at isa0 port 0x3f8-0x3ff irq 248: ns16550a, working fifo
> panic: intr_establish: bogus irq or type
> 
> Then I am told to reboot.
> 
> If I disable the first com port, I get the message for the second, and
> then the parallel port. I can get past these problems if I disable all
> three of these ports from BIOS.
> 
> I also hang at the first prompt:
>     Enter pathname of shell or RETURN form sh:
> 
> unless I disable both on-chip and external cache.
> 
> Does anybody else in NetBSD-land have the Tyan Tomcat III? If so, I
> would appreciate any hints that you have. I'm not above bribing people
> with chocolat-chip cookies.  :)
> --
> D. Jay Newman      ! I'm sure he's fine. After all, he's a
> newman@cac.psu.edu !            mad scientist!
> dn5@psu.edu        !   -- a line from _Ariel_