Re: DISCONTIGMEM is deprecated

From: Mel Gorman
Date: Wed Apr 24 2019 - 08:22:01 EST

On Wed, Apr 24, 2019 at 02:33:53PM +0300, Mike Rapoport wrote:
> On Tue, Apr 23, 2019 at 12:13:54AM -0700, Christoph Hellwig wrote:
> > On Sun, Apr 21, 2019 at 10:16:04PM +0100, Mel Gorman wrote:
> > > 32-bit NUMA systems should be non-existent in practice. The last NUMA
> > > system I'm aware of that was both NUMA and 32-bit only died somewhere
> > > between 2004 and 2007. If someone is running a 64-bit capable system in
> > > 32-bit mode with NUMA, they really are just punishing themselves for fun.
> >
> > Can we mark it as BROKEN to see if someone shouts and then remove it
> > a year or two down the road? Or just kill it off now..
> How about making SPARSEMEM default for x86-32?

While an improvement, I tend to agree with Christoph that marking it
BROKEN as a patch on top of this makes sense and wait to see who, if
anyone, screams. If it's quiet for long enough then we can remove it

Mel Gorman