Re: 2.3.43 alpha broken with >2g of ram

From: Richard Henderson (rth@cygnus.com)
Date: Sat Feb 12 2000 - 15:59:13 EST


On Sat, Feb 12, 2000 at 12:29:15PM -0800, Linus Torvalds wrote:
> With the highmem approach, no other devices will ever see the
> non-PCI-DMA'able pages, which is EXACTLY what we want.
>
> That's the whole point of using the high-mem approach: the high pages are
> still used, but they are used only for a controlled subset of the problems
> space.

Ah, I see. I was unclear how this was done. In which case, I think
the command line switch is most definitely the best option.

Andrea, if you still feel the need to forward port the highmem stuff,
you'd better make it a configure option only. Otherwise you'd be
punishing systems that do have all devices converted.

r~

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