From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751013AbdIKG23 (ORCPT ); Mon, 11 Sep 2017 02:28:29 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:57544 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750890AbdIKG22 (ORCPT ); Mon, 11 Sep 2017 02:28:28 -0400 Subject: Re: [PATCH v2 00/20] Speculative page faults To: Sergey Senozhatsky Cc: paulmck@linux.vnet.ibm.com, peterz@infradead.org, akpm@linux-foundation.org, kirill@shutemov.name, ak@linux.intel.com, mhocko@kernel.org, dave@stgolabs.net, jack@suse.cz, Matthew Wilcox , benh@kernel.crashing.org, mpe@ellerman.id.au, paulus@samba.org, Thomas Gleixner , Ingo Molnar , hpa@zytor.com, Will Deacon , linux-kernel@vger.kernel.org, linux-mm@kvack.org, haren@linux.vnet.ibm.com, khandual@linux.vnet.ibm.com, npiggin@gmail.com, bsingharora@gmail.com, Tim Chen , linuxppc-dev@lists.ozlabs.org, x86@kernel.org References: <1503007519-26777-1-git-send-email-ldufour@linux.vnet.ibm.com> <20170821022629.GA541@jagdpanzerIV.localdomain> <6302a906-221d-c977-4aea-67202eb3d96d@linux.vnet.ibm.com> <20170911004523.GA2938@jagdpanzerIV.localdomain> From: Laurent Dufour Date: Mon, 11 Sep 2017 08:28:16 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: <20170911004523.GA2938@jagdpanzerIV.localdomain> Content-Type: text/plain; charset=utf-8 Content-Language: fr Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 17091106-0040-0000-0000-000003D8EE2D X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17091106-0041-0000-0000-000025D9F819 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-09-11_02:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1709110100 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/09/2017 02:45, Sergey Senozhatsky wrote: > On (09/08/17 11:24), Laurent Dufour wrote: >> Hi Sergey, >> >> I can't see where such a chain could happen. >> >> I tried to recreate it on top of the latest mm tree, to latest stack output >> but I can't get it. >> How did you raised this one ? > > Hi Laurent, > > didn't do anything special, the box even wasn't under severe memory > pressure. can re-test your new patch set. Hi Sergey, I sent a v3 series, would you please give it a try ? Thanks, Laurent.