Re: Possible bug in ibmcpc driver

[Michael <macallan%netbsd.org@localhost>]

Hello,

On Thu, 04 Apr 2013 17:30:32 +0200
Phileas Fogg <phileas-fogg%mail.ru@localhost> wrote:

> On 04/03/2013 11:00 PM, Phileas Fogg wrote:

> > i'm trying to boot NetBSD HEAD on my PowerMac G5 in bridge mode
> > and stumbled upon an odd isuue. The kernel panics in
> > extent_alloc_region with the message
> >
> > extent_alloc_region: extent `%s' (0x0 - 0x0)
> > extent_alloc_region: start 0x%fa500000, end 0x%00100000
> > extent_alloc_region: region lies outside extent
> >
> > I tried to debug this issue and found out
> > that bus tags sc_iot and sc_memt are not zeroed out
> > after each call ofwoea_map_space in ibmcpc_attach.
> > Adding bzero before ofwoea_map_space solved the issue but
> > the kernel paniced now in memio_map at line 601
> > with the message
> >
> > "bus_space_map failed: ENOMEM"
> >
> > Killing the if statement solved the issued then finally.
> > And PCI enumeration and mapping works on G5 now.
> >
> > Regards
> 
> 
> Hmm, the same problem on uninorth.c now :(
> It worked perfectly on NetBSD 6.0.1 and on NetBSD head
> i can't get my Nvidia card working with genfb.

Odd, my GigE G4 with a geforce 2 mx still works.
I did see something similar with cpc though - the bge's failed to
initialize because of preposterous addresses used in bus_space_map().

have fun
Michael
-- 
Michael <macallan%netbsd.org@localhost>