Re: Patch to reorder functions in the vmlinux to a defined order

From: Andi Kleen
Date: Thu Feb 23 2006 - 14:29:06 EST


On Thursday 23 February 2006 20:23, Rene Herman wrote:
> Linus Torvalds wrote:
>
> > The same should be true on x86, btw. Where we should use a physical start
> > address of 4MB for best performance.
>
> Does 16MB still work? Gets the kernel out of the old ZONE_DMA. I suppose
> not many people are really using that anyway anymore these days, but if
> no downsides maybe?

That would prevent booting on < 18MB or so
>
> Also, did the kernel still boot on a 4M machine, and would it still do
> so with the change to 4M as posted? 2.4 used to boot fine with 4M. Not
> certain anymore if I ever tested that with 2.6 (and can't right now).

It wouldn't without additional changes.

-Andi

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