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

From: Rik van Riel
Date: Mon Jul 10 2017 - 09:58:24 EST


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>