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Date: Thu, 11 Sep 2014 16:04:48 +0200 From: Michal Hocko <mhocko@...e.cz> To: "Rafael J. Wysocki" <rjw@...ysocki.net> Cc: Tejun Heo <tj@...nel.org>, Cong Wang <xiyou.wangcong@...il.com>, LKML <linux-kernel@...r.kernel.org>, David Rientjes <rientjes@...gle.com>, Andrew Morton <akpm@...ux-foundation.org> Subject: Re: [Patch v4 1/2] freezer: check OOM kill while being frozen On Thu 11-09-14 16:17:56, Rafael J. Wysocki wrote: [...] > And I'm still wondering if the OOM killer may be made avoid killing frozen > tasks. This is really tricky. OOM killer aims at the biggest memory hog. We shouldn't ignore it just because it hides into the fridge... So even if we "fix" oom killer to ignore frozen tasks (which is inherently racy btw.) then we have a potential problem of freezer abuse (e.g. in container environments). So I strongly believe that the OOM killer has to be able to kill a frozen tasks. -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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