On Thu, 2005-11-10 at 07:32 +1100, Benjamin Herrenschmidt wrote:
> On Wed, 2005-11-09 at 12:17 -0800, Mike Kravetz wrote:
> > On Wed, Nov 09, 2005 at 06:21:25PM +0100, Christoph Hellwig wrote:
> > > Booting current mainline with 64K pagesize enabled gives me a purple (!)
> > > screen early during boot.
> > 
> > I seem to also be having problems with this patch.  My OpenPOWER 720
> > stopped booting with 2.6.14-git10(and later).  Just using defconfig.
> > 64k page size NOT enabled.  If I back out the 64k page size patch,
> > 2.6.14-git10 boots.  I'm trying to get more info but it is painful.
> > It dies before xmon is initialized.
> 
> There  have been a couple of fixes, try the very latest git. Also, try
> enabling early debug in arch/ppc64/kernel/setup.c
> 
> > I could have sworn that I booted 2.6.14-git7 with the 64k page size
> > patch applied.  But, I can't do that now either.
> > 
> > Some co-workers have successfully booted other POWER systems with these
> > kernels.  So, it must be specific to my hardware/LPAR configuration.
> 
> Ok, i'll do more tests here too.

I didn't have any luck on 2.6.14-git12 either.
I tried 64k page support on my P570. 

Here are the console messages:

Thanks,
Badari