Re: [PATCH] ppc64: 64K pages support

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

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.

Ben.