Re: [2.6.15-rc2-mm1] Disabled flatmem on ppc32? (ARCH=powerpc)

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On Nov 27, 2005, at 08:43:40, Andy Whitcroft wrote:

Kyle Moffett wrote:


There is a Kconfig problem for ppc32 in the latest -mm kernel. It seems that somehow the Kconfig logic for selecting memory models under ARCH=powerpc doesn't quite get it right for standard flatmem ppc32 systems. When I look at the memory model selection, I only see sparsemem, whereas on a normal -rc2 kernel, I can see both flatmem and sparsemem. This somehow triggers a #error where the number of reserved bits is less than the number necessary for the sparsemem layout (because we're on a 32-bit arch without the address space for sparsemem?).


I suspect we have neglected to add back the default for FLATMEM on 32 bit when we allowed FLATMEM to be disabled for 64 bit. Will go and look at it. Thanks for the report.


When you get it figured out, could you CC the patch to me? I'd like to do some testing -mm1 and this is a bit of a showstopper :-D. Thanks!

Cheers,
Kyle Moffett


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