Re: [PATCH] Remove OOM killer from try_to_free_pages / all_unreclaimable braindamage

From: Marcelo Tosatti
Date: Mon Nov 08 2004 - 17:18:04 EST

On Mon, Nov 08, 2004 at 02:27:31PM -0200, Marcelo Tosatti wrote:
> On Fri, Nov 05, 2004 at 06:01:18PM -0200, Marcelo Tosatti wrote:
> > While doing this, I noticed that kswapd will happily go to sleep
> > if all zones have all_unreclaimable set. I bet this is the reason
> > for the page allocation failures we are seeing. So the patch
> > also makes balance_pgdat() NOT return and go to "loop_again"
> > instead in case of page shortage - even if all_unreclaimable is set.
> >
> > Basically the "loop_again" logic IS NOT WORKING!
> Wrong, the loop_again logic is working, all_zones_ok will be
> set when DEF_PRIORITY = 0.

I meant priority=DEF_PRIORITY.

> So the page allocation failures are happening for some other
> reason(s).

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