linux-kernel - Re: [regression] 2.6.39-rc[1-3] fail to boot on G5 PowerMac

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Date:	Thu, 14 Apr 2011 11:02:36 +0200
From:	Michel Dänzer <michel@...nzer.net>
To:	kevin diggs <diggskevin38@...il.com>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Mikael Pettersson <mikpe@...uu.se>,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [regression] 2.6.39-rc[1-3] fail to boot on G5 PowerMac

On Mit, 2011-04-13 at 18:43 -0500, kevin diggs wrote: 
> 
> On Wed, Apr 13, 2011 at 6:21 PM, Benjamin Herrenschmidt
> <benh@...nel.crashing.org> wrote:
> > On Wed, 2011-04-13 at 12:52 -0500, kevin diggs wrote:
> >> > Actually I do get a crash in X later on... something in the radeon
> >> DRM
> >> > interrupt code is getting what looks like a NULL dereference. I'll
> >> try
> >> > to dig that one later on. I don't know if it's related to your
> >> problem
> >> > at all though.
> >> >
> >> In this context, what does 'crash' mean? The X thingy goes down? Or
> >> the whole OS?
> >
> > Depends, with xmon enabled you get into xmon :-) Dunno if the oops is
> > fatal but it could be.
> >
> > Cheers,
> > Ben.
> >
> >
> 
> As I think I have the same hardware as you (7,3, radeon 9600) If you
> can tell me how to reproduce it maybe I can poke around a little.
> Thus, at least temporarily, freeing you up for other stuff.
> 
> I kinda need a break from fighting with GCC.

FWIW, the problem Ben refers to might be fixed in current mainline by
commit d87dfdbfc91c5e37288e7e8f7afdd992ba61a60d which reverts
69a07f0b117a40fcc1a479358d8e1f41793617f2 .


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer
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