Re: Linux 3.9-rc1

Henrik Rydberg
2013-03-06T22:01:11Z

On Wed, Mar 06, 2013 at 01:49:15PM -0800, H. Peter Anvin wrote:
> On 03/06/2013 01:33 PM, Yinghai Lu wrote:
> > On Wed, Mar 6, 2013 at 12:58 PM, H. Peter Anvin <hpa@linux.intel.com> wrote:
> >
> >> Excellent. Yinghai, can you write up the patch with a proper
> >> description and I'll put it into x86/urgent.
> >
> > I made it more robust: make sure real_end have 8M below it.
> > Please check attached one.
> >
>
> Sigh. This is why "keep the page tables together" is fundamentally the
> wrong strategy.
>
> 8M means that we won't even be able to boot on machines with less than
> 16M or so of RAM... I'm not sure if anyone still cares, but that is a
> pretty aggressive heuristic.

Maybe this should be a config option, given the ad-hoc nature of the
chosen value? Anyway, the patch works.

Henrik