Re: [PATCH] mm, vmscan: do not loop on too_many_isolated for ever

From: Johannes Weiner
Date: Mon Jul 10 2017 - 12:59:20 EST

On Mon, Jul 10, 2017 at 09:58:03AM -0400, Rik van Riel wrote:
> On Mon, 2017-07-10 at 09:48 +0200, Michal Hocko wrote:
> > Johannes and Rik had some concerns that this could lead to premature
> > OOM kills. I agree with them that we need a better throttling
> > mechanism. Until now we didn't give the issue described above a high
> > priority because it usually required a really insane workload to
> > trigger. But it seems that the issue can be reproduced also without
> > having an insane number of competing threads [3].
> My worries stand, but lets fix the real observed bug, and not worry
> too much about the theoretical bug for now.
> Acked-by: Rik van Riel <riel@xxxxxxxxxx>

I agree with this.

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>