Subject: Re: ADBDIRECT bug
To: Scott Reynolds <scottr@og.org>
From: Colin Wood <cwood@ichips.intel.com>
List: port-mac68k
Date: 05/05/1998 22:47:15
Scott Reynolds wrote:
> On Tue, 5 May 1998, Colin Wood wrote:
>
> > Hauke Fath wrote:
> > > [...]
> > > mrg: kernel has no ROM vectors for this machine!
> >
> > well, there's the problem. that line is obviously quite wrong!
>
> well, not knowing for sure whether a serial console was used to capture
> this, i'm not sure. i'll assume that this message is bogus, though.
ah, true. that's quite possible (and i suppose quite likely unless hauke
typed all that in by hand). blast. i thought i had found the easy
answer...
> > perhaps
> > the uvm stuff has somehow screwed up the mapping of the lowmem globals or
> > the mac rom space.
>
> definitely not the lowmem globals. those are part of the kernel text, no
> question. as far as the ROM space, that shouldn't be a problem, either,
> unless the ROM is bigger than 2MB. (it'd be nice to get confirmation of
> this, by the way.) my experience with fixing a problem in pmap_init()
> suggests that UVM is less forgiving of pmap-related mistakes.
hmmmm....do you happen to know of a good way to get the size of the roms?
> > Hmmm...I don't think that the obio and nubus changes would affect this at
> > all, but I could be wrong.
>
> the only changes here were related to the location of various files. no
> code changes were made.
that's what i figured. oh well. we'll have to find something else, then.
later.
--
Colin Wood cwood@ichips.intel.com
Component Design Engineer - PMD Intel Corporation
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I speak only on my own behalf, not for my employer.