From: Andrew Morton <akpm@linux-foundation.org>
To: Michal Hocko <mhocko@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan@kernel.org>,
Hillf Danton <hillf.zj@alibaba-inc.com>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
Trevor Cordes <trevor@tecnopolis.ca>
Subject: Re: [PATCH 2/3] mm, vmscan: consider eligible zones in get_scan_count
Date: Mon, 6 Feb 2017 15:40:50 -0800 [thread overview]
Message-ID: <20170206154050.ebfaae2883597176606882b7@linux-foundation.org> (raw)
In-Reply-To: <20170206081006.GA3085@dhcp22.suse.cz>
On Mon, 6 Feb 2017 09:10:07 +0100 Michal Hocko <mhocko@kernel.org> wrote:
> Hi Andrew,
> it turned out that this is not a theoretical issue after all. Trevor
> (added to the CC) was seeing pre-mature OOM killer triggering [1]
> bisected to b2e18757f2c9 ("mm, vmscan: begin reclaiming pages on a
> per-node basis").
> After some going back and forth it turned out that b4536f0c829c ("mm,
> memcg: fix the active list aging for lowmem requests when memcg is
> enabled") helped a lot but it wasn't sufficient on its own. We also
> need this patch to make the oom behavior stable again. So I suggest
> backporting this to stable as well. Could you update the changelog as
> follows?
>
> The patch would need to be tweaked a bit to apply to 4.10 and older
> but I will do that as soon as it hits the Linus tree in the next merge
> window.
>
> ...
>
> Fixes: b2e18757f2c9 ("mm, vmscan: begin reclaiming pages on a per-node basis")
> Cc: stable # 4.8+
> Tested-by: Trevor Cordes <trevor@tecnopolis.ca>
No probs.
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next prev parent reply other threads:[~2017-02-06 23:40 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-17 10:36 [PATCH 0/3] follow up nodereclaim for 32b fix Michal Hocko
2017-01-17 10:37 ` [PATCH 1/3] mm, vmscan: cleanup lru size claculations Michal Hocko
2017-01-17 10:37 ` [PATCH 2/3] mm, vmscan: consider eligible zones in get_scan_count Michal Hocko
2017-01-18 16:46 ` Johannes Weiner
2017-02-06 8:10 ` Michal Hocko
2017-02-06 23:40 ` Andrew Morton [this message]
2017-01-17 10:37 ` [PATCH 3/3] Revert "mm: bail out in shrink_inactive_list()" Michal Hocko
2017-01-18 16:48 ` Johannes Weiner
2017-01-17 11:13 ` [PATCH 0/3] follow up nodereclaim for 32b fix Mel Gorman
-- strict thread matches above, loose matches on Subject: below --
2017-01-16 16:01 [RFC PATCH 1/2] mm, vmscan: consider eligible zones in get_scan_count Johannes Weiner
2017-01-16 19:33 ` [PATCH 1/3] mm, vmscan: cleanup lru size claculations Michal Hocko
2017-01-16 19:33 ` [PATCH 2/3] mm, vmscan: consider eligible zones in get_scan_count Michal Hocko
2017-01-17 3:42 ` Hillf Danton
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