linux-kernel - Re: [PATCH 5/6] mm: memcontrol: per-lruvec stats infrastructure

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Message-ID: <20170601080340.3abea4e9@canb.auug.org.au>
Date:   Thu, 1 Jun 2017 08:03:40 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Josef Bacik <josef@...icpanda.com>,
        Michal Hocko <mhocko@...e.com>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Rik van Riel <riel@...hat.com>, linux-mm@...ck.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com, Russell King <rmk@...linux.org.uk>,
        Yury Norov <ynorov@...iumnetworks.com>
Subject: Re: [PATCH 5/6] mm: memcontrol: per-lruvec stats infrastructure

Hi Tony, Andrew,

On Wed, 31 May 2017 12:02:10 -0700 Tony Lindgren <tony@...mide.com> wrote:
>
> * Andrew Morton <akpm@...ux-foundation.org> [170531 11:21]:
> > On Wed, 31 May 2017 13:14:50 -0400 Johannes Weiner <hannes@...xchg.org> wrote:
> >   
> > > Andrew, the 0day tester found a crash with this when special pages get
> > > faulted. They're not charged to any cgroup and we'll deref NULL.
> > > 
> > > Can you include the following fix on top of this patch please? Thanks!  
> > 
> > OK.  But this won't fix the init ordering crash which the arm folks are
> > seeing?  
> 
> That's correct, the ordering crash is a separate problem.
> 
> > I'm wondering if we should ask Stephen to drop
> > 
> > mm-vmstat-move-slab-statistics-from-zone-to-node-counters.patch
> > mm-memcontrol-use-the-node-native-slab-memory-counters.patch
> > mm-memcontrol-use-generic-mod_memcg_page_state-for-kmem-pages.patch
> > mm-memcontrol-per-lruvec-stats-infrastructure.patch
> > mm-memcontrol-account-slab-stats-per-lruvec.patch
> > 
> > until that is sorted?  
> 
> Seems like a good idea.

OK, I have removed them.

-- 
Cheers,
Stephen Rothwell