From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx173.postini.com [74.125.245.173]) by kanga.kvack.org (Postfix) with SMTP id 36A726B003A for ; Mon, 29 Jul 2013 14:57:34 -0400 (EDT) Received: by mail-ve0-f181.google.com with SMTP id jz10so3192810veb.26 for ; Mon, 29 Jul 2013 11:57:33 -0700 (PDT) Message-ID: <51F6BB3D.6000700@gmail.com> Date: Mon, 29 Jul 2013 14:58:05 -0400 From: KOSAKI Motohiro MIME-Version: 1.0 Subject: Re: [patch 2/6] arch: mm: do not invoke OOM killer on kernel fault OOM References: <1374791138-15665-1-git-send-email-hannes@cmpxchg.org> <1374791138-15665-3-git-send-email-hannes@cmpxchg.org> In-Reply-To: <1374791138-15665-3-git-send-email-hannes@cmpxchg.org> Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Johannes Weiner Cc: Andrew Morton , Michal Hocko , David Rientjes , KAMEZAWA Hiroyuki , azurIt , linux-mm@kvack.org, cgroups@vger.kernel.org, x86@kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, kosaki.motohiro@gmail.com (7/25/13 6:25 PM), Johannes Weiner wrote: > Kernel faults are expected to handle OOM conditions gracefully (gup, > uaccess etc.), so they should never invoke the OOM killer. Reserve > this for faults triggered in user context when it is the only option. > > Most architectures already do this, fix up the remaining few. > > Signed-off-by: Johannes Weiner OK. but now almost all arch have the same page fault handler. So, I think we can implement arch generic page fault handler in future. Ah, ok, never mind if you are not interest. Acked-by: KOSAKI Motohiro -- 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