Subject: Re: Multiple busses of the same kind
To: Aymeric Vincent <>
From: Wojciech Puchar <>
List: tech-kern
Date: 07/29/2001 22:48:56
> As stated in the PR, preventing the second pcib from attaching the ISA
> bus made the trick and he could boot properly.

so there cannot be 2 ISA busses in one machine?

> However, I believe it would be nice to have a isa_match_hook() called
> by isamatch() which could prevent attachment as soon as one isa bus
> has been seen on the i386 arch.
> I don't feel confident enough to do the change myself, and such a
> change would mean adding a isa_match_hook() to every architecture that
> has ISA busses.
> Obviously such a restriction (enforcing only one isa bus) can not go
> into the MI isa code since I don't see any conceptual reason to
> prevent multiple isa busses from coexisting in address space or
> something.
> Could anyone with enough knowledge please have a look at this PR? I'd
> like to see a fix for this in the next 1.5.* branch...
> thanks,
>  Aymeric