Re: [patch 0/4] ia64 SPARSEMEM

From: KAMEZAWA Hiroyuki <>
Date: 2005-05-30 10:18:22
Hi Bob,
> Another point to consider...
> Both RH & SuSE release a single kernel binary image that is used on all
> platforms. IA64 discovers the platform type (Dig, SGI, HP, ...) during
> boot & sets up platform callouts to platform specific functions. We
> will need to select values for both CONFIG_SECTION_BITS &
> CONFIG_PHYSICAL_MEMORY_BITS that work on all IA64 platforms (or make these
> values configurable at runtime)
After reading e-mails,
	physical address size -- 50bits
	section size	      -- 32bits
will be good as a default.
This can work on any ia64 platforms && Full-sized Hugetlb can be used without any tuning.

If people want to hot-remove smaller memory sections, he should adjust the params.

-- Kame

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Received on Sun May 29 20:19:23 2005

This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:39 EST