linux-kernel - Re: [PATCH v3] oom-kill: add lowmem usage aware oom kill handling

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Message-ID: <20100129162137.79b2a6d4@lxorguk.ukuu.org.uk>
Date:	Fri, 29 Jan 2010 16:21:37 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>
Cc:	vedran.furac@...il.com,
	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>, rientjes@...gle.com,
	minchan.kim@...il.com,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>
Subject: Re: [PATCH v3] oom-kill: add lowmem usage aware oom kill handling

> panic_on_oom=1 works enough well.For Vedran's, overcommit memory will work
> well. But oom-killer kills very bad process if not tweaked.
> So, I think some improvement should be done.

That is why we have the per process oom_adj values - because for nearly
fifteen years someone comes along and says "actually in my environment
the right choice is ..."

Ultimately it is policy. The kernel simply can't read minds.
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