linux-kernel - Re: [PATCH] fs, mm: account filp and names caches to kmemcg

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Message-ID: <CALvZod5wiJvZw0yCS+KuDDYawUDAL=h0UBFXhY44FN84BsXrtA@mail.gmail.com>
Date:   Fri, 27 Oct 2017 13:50:47 -0700
From:   Shakeel Butt <shakeelb@...gle.com>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Michal Hocko <mhocko@...nel.org>, Greg Thelen <gthelen@...gle.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux MM <linux-mm@...ck.org>, linux-fsdevel@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] fs, mm: account filp and names caches to kmemcg

> Why is OOM-disabling a thing? Why isn't this simply a "kill everything
> else before you kill me"? It's crashing the kernel in trying to
> protect a userspace application. How is that not insane?

In parallel to other discussion, I think we should definitely move
from "completely oom-disabled" semantics to something similar to "kill
me last" semantics. Is there any objection to this idea?