[regression] 2.6.39-rc[1-3] fail to boot on G5 PowerMac
hughd at google.com
Fri Apr 15 07:25:31 EST 2011
On Thu, Apr 14, 2011 at 2:02 AM, Michel Dänzer <michel at daenzer.net> wrote:
> On Mit, 2011-04-13 at 18:43 -0500, kevin diggs wrote:
>> On Wed, Apr 13, 2011 at 6:21 PM, Benjamin Herrenschmidt
>> <benh at kernel.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 .
Something worth trying: turn off CONFIG_IDE. That's what I need to
boot 2.6.39-rc[1-3] on PowerPC G5.
I know Jens has been fixing problems with IDE versus his plug/unplug
changes, but it's still not fixed for me in rc3.
In other mail http://lkml.org/lkml/2011/4/14/614
I see Linus recommending his post-rc3 commit 6631e635c65d
but I've not tried that myself yet.
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