Re: ~500 megs cached yet 2.6.5 goes into swap hell

[Nick Piggin]

Marc Singer wrote:
> On Thu, Apr 29, 2004 at 02:26:17PM +1000, Nick Piggin wrote:
>
> > Yes it includes something which should help that. Along with
> > the "split active lists" that I mentioned might help your
> > problem when WLI first came up with the change to the
> > swappiness calculation for your problem.
> >
> > It would be great if you had time to give my patch a run.
> > It hasn't been widely stress tested yet though, so no
> > production systems, of course!
>
>
> As I said, I'm game to have a go.  The trouble was that it doesn't
> apply.  My development kernel has an RMK patch applied that seems to
> conflict with the MM patch on which you depend.

You would probably be better off trying a simpler change
first actually:

in mm/vmscan.c, shrink_list(), change:

if (res == WRITEPAGE_ACTIVATE) {
	ClearPageReclaim(page);
	goto activate_locked;
}

to

if (res == WRITEPAGE_ACTIVATE) {
	ClearPageReclaim(page);
	goto keep_locked;
}

I think it is not the correct solution, but should narrow
down your problem. Let us know how it goes.
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