Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751499AbdINRtL (ORCPT ); Thu, 14 Sep 2017 13:49:11 -0400 Received: from out0-205.mail.aliyun.com ([140.205.0.205]:60356 "EHLO out0-205.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751414AbdINRtJ (ORCPT ); Thu, 14 Sep 2017 13:49:09 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R701e4;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e02c03293;MF=yang.s@alibaba-inc.com;NM=1;PH=DS;RN=7;SR=0;TI=SMTPD_---.8u1ptjF_1505411336; Subject: Re: [PATCH 3/3] mm: oom: show unreclaimable slab info when kernel panic To: Christopher Lameter Cc: penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <1505409289-57031-1-git-send-email-yang.s@alibaba-inc.com> <1505409289-57031-4-git-send-email-yang.s@alibaba-inc.com> From: "Yang Shi" Message-ID: <9037e387-2828-8f77-2dab-01f290187119@alibaba-inc.com> Date: Fri, 15 Sep 2017 01:48:56 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 405 Lines: 16 On 9/14/17 10:32 AM, Christopher Lameter wrote: > I am not sure that this is generally useful at OOM times unless this is > not a rare occurrence. I would say it is not very rare. But, it is definitely troublesome to narrow down without certain information about slab usage when it happens. Thanks, Yang > > Certainly information like that would create more support for making > objects movable >