Re: Moving mac68k to 8K pages?

[David Brownlee <abs%netbsd.org@localhost>]

On Fri, 8 Feb 2019 at 07:53, Martin Husemann <martin%duskware.de@localhost> wrote:
>
> On Fri, Feb 08, 2019 at 04:40:29AM +0000, John Klos wrote:
> > Are there any good reasons to not switch mac68k to 8K pages, at very least
> > until someone gets around to rewriting the PMAP?
>
> Haven't thought about it in detail but things to consider:
>  - it wastes a bit of space on tiny memory machines
>  - does it break binary comptability?

I would expect that the latter *should* be fine - based on history for
NetBSD/vax switching from 1k to 4k pages :)

How reasonable would it to make it a explicit kernel option for m68k -
defaulting to 8k, but settable to 4k specifically for low memory
machines.

David