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Hello,On Tue, 14 Feb 2012 19:13:20 +0100
Frank Wille <frank@...> wrote:
> Michael wrote:
> > the attached patch allows -current to boot on my iBook G4, to some
> > degree at least. [...]
> Good work!
Turns out pmap_extract() on DMA buffers fails on CPUs that support HIGHBAT and XBSEN. No idea why (yet). On CPUs without that we're making it to multiuser ( I tested it on a 603ev Performa and riz tried a 750 and a 7400 box )
> > [...] the other problem was that we tried to map the
> > upper 256MB which includes the ROM, which fails now so we only map
> > 0xf0000000 - 0xfbffffff.
> What I don't understand: why didn't it fail in the past?
No clue. I can only guess that something else maps the ROM.
> > So, this needs to be tested on ofppc and other
> > macppc boxes. If you get any (green) kernel putput at all ( as opposed
> > to some obscure OF error and no kernel output ) then it worked.
> ofppc (Pegasos2) still works fine.
That's what I wanted to know before pestering releng.