Re: [PATCH for review] [7/48] i386: divorce CONFIG_X86_PAE from CONFIG_HIGHMEM64G

From: Andi Kleen
Date: Thu Jul 19 2007 - 13:07:10 EST


On Thursday 19 July 2007 16:46:31 Dave Jones wrote:
> On Thu, Jul 19, 2007 at 03:48:36PM +0200, Andi Kleen wrote:

I didn't. If you guys really want to have a thread to criticize the changelog
(which seems quite bogus, after all we're interested in code here,
not changelogs) then please at least get your attributions right.

Regarding highmem instability: there are still known ways to drive
systems with larger highmem ratios to early OOM or deadlock, although they
are relatively obscure.

-Andi

>
> > Some users may want NX
> > or expanded swapspace support without the overhead or instability of
> > highmem.
>
> NX is still going to need the larger PTEs, so I don't see how this
> change removes any 'overhead' or potential 'instability'.
> I'm not necessarily disagreeing with the change, but this part
> of the changelog seems to be false advertising.
>
> Dave
>


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