From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx117.postini.com [74.125.245.117]) by kanga.kvack.org (Postfix) with SMTP id E60126B0038 for ; Thu, 6 Jun 2013 00:43:07 -0400 (EDT) Received: by mail-pd0-f182.google.com with SMTP id g10so2811113pdj.13 for ; Wed, 05 Jun 2013 21:43:07 -0700 (PDT) Date: Wed, 5 Jun 2013 21:43:04 -0700 (PDT) From: David Rientjes Subject: Re: [patch 1/2] arch: invoke oom-killer from page fault In-Reply-To: <20130606043620.GA9406@cmpxchg.org> Message-ID: References: <1370488193-4747-1-git-send-email-hannes@cmpxchg.org> <20130606043620.GA9406@cmpxchg.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Johannes Weiner Cc: Andrew Morton , Michal Hocko , KAMEZAWA Hiroyuki , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org On Thu, 6 Jun 2013, Johannes Weiner wrote: > From: Johannes Weiner > Subject: [patch] mm: invoke oom-killer from remaining unconverted page fault > handlers > > A few remaining architectures directly kill the page faulting task in > an out of memory situation. This is usually not a good idea since > that task might not even use a significant amount of memory and so may > not be the optimal victim to resolve the situation. > > Since '1c0fe6e mm: invoke oom-killer from page fault' (2.6.29) there > is a hook that architecture page fault handlers are supposed to call > to invoke the OOM killer and let it pick the right task to kill. > Convert the remaining architectures over to this hook. > > To have the previous behavior of simply taking out the faulting task > the vm.oom_kill_allocating_task sysctl can be set to 1. > > Signed-off-by: Johannes Weiner Acked-by: David Rientjes -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org