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SubjectRe: [QN/PATCH] Why do some archs allocate stack via kmalloc, others via get_free_pages?

On Fri, 2005-07-22 at 17:50, David S. Miller wrote:
> From: Nigel Cunningham <>
> Date: Fri, 22 Jul 2005 14:11:17 +1000
> > In making some modifications to Suspend, we've discovered that some
> > arches use kmalloc and others use get_free_pages to allocate the stack.
> > Is there a reason for the variation? If not, could the following patch
> > be considered for inclusion (tested on x86 only).
> Some platforms really need it to be page aligned (sparc32 sun4c needs
> to virtually map the resulting pages into a specific place, for
> example).
> But, for the ones that don't have this requirement, they want the
> cache coloring.

Thanks David.


Enumerate the requirements.
Consider the interdependencies.
Calculate the probabilities.

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