ppc64 oops..

Benjamin Herrenschmidt benh at kernel.crashing.org
Wed Nov 16 08:07:21 EST 2005


On Wed, 2005-11-16 at 04:43 +1100, Anton Blanchard wrote:
> Hi,
> 
> > I'd love to, but then it never boots at all, and stops after "Setup done".
> > 
> > I'll now try with "flatmem", although on powerpc, sparsemem seems to be 
> > the default, and I bet that's the cause: 
> > 
> > 	config ARCH_SPARSEMEM_DEFAULT
> > 	        def_bool y
> > 	        depends on SMP && PPC_PSERIES
> > 
> > just because I had PSERIES enabled (which is _also_ the default).
> > 
> > So nobody has clearly ever tested either NUMA nor SPARSEMEM, yet they are 
> > both enabled by default. Tssk.
> 
> All options (flatmem, sparsmem and NUMA sparsemem) were tested on
> pseries, I dont have access to a g5 in Austin unfortunately.

Well, it probably also breaks pSeries without NUMA and with a memory
hole :)

Ben.





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