From: Michal Hocko
The current wording of the COMPACTION Kconfig help text doesn't
emphasise that disabling COMPACTION might cripple the page allocator
which relies on the compaction quite heavily for high order requests and
an unexpected OOM can happen with the lack of compaction. Make sure
we a
On Tue, Aug 23, 2016 at 10:09:17AM +0200, Michal Hocko wrote:
> From: Michal Hocko
>
> The current wording of the COMPACTION Kconfig help text doesn't
> emphasise that disabling COMPACTION might cripple the page allocator
> which relies on the compaction quite heavily for high order requests and
On Mon 29-08-16 10:10:45, Johannes Weiner wrote:
> On Tue, Aug 23, 2016 at 10:09:17AM +0200, Michal Hocko wrote:
> > From: Michal Hocko
> >
> > The current wording of the COMPACTION Kconfig help text doesn't
> > emphasise that disabling COMPACTION might cripple the page allocator
> > which relies
On Tue, 23 Aug 2016, Michal Hocko wrote:
> From: Michal Hocko
>
> The current wording of the COMPACTION Kconfig help text doesn't
> emphasise that disabling COMPACTION might cripple the page allocator
> which relies on the compaction quite heavily for high order requests and
> an unexpected OOM
On Wed 24-08-16 17:54:52, David Rientjes wrote:
> On Tue, 23 Aug 2016, Michal Hocko wrote:
>
> > From: Michal Hocko
> >
> > The current wording of the COMPACTION Kconfig help text doesn't
> > emphasise that disabling COMPACTION might cripple the page allocator
> > which relies on the compaction
On Thu, 25 Aug 2016, Michal Hocko wrote:
> > I don't believe it has been an issue in the past for any archs that
> > don't use thp.
>
> Well, fragmentation is a real problem and order-0 reclaim will be never
> anywhere close to reliably provide higher order pages. Well, reclaiming
> a lot of memo
On Thu 25-08-16 15:34:54, David Rientjes wrote:
> On Thu, 25 Aug 2016, Michal Hocko wrote:
>
> > > I don't believe it has been an issue in the past for any archs that
> > > don't use thp.
> >
> > Well, fragmentation is a real problem and order-0 reclaim will be never
> > anywhere close to reliabl
On 2016.08.23 at 10:09 +0200, Michal Hocko wrote:
> From: Michal Hocko
>
> The current wording of the COMPACTION Kconfig help text doesn't
> emphasise that disabling COMPACTION might cripple the page allocator
> which relies on the compaction quite heavily for high order requests and
> an unexpec
that at
> would be
Thanks for the review. Updated patch follows:
---
>From 177212367432e9fa5e090fafdfe3774d5793e46b Mon Sep 17 00:00:00 2001
From: Michal Hocko
Date: Tue, 23 Aug 2016 10:03:37 +0200
Subject: [PATCH] mm: clarify COMPACTION Kconfig text
The curren
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