Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752006AbdIKAsQ (ORCPT ); Sun, 10 Sep 2017 20:48:16 -0400 Received: from mail-pf0-f193.google.com ([209.85.192.193]:32768 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751827AbdIKAsO (ORCPT ); Sun, 10 Sep 2017 20:48:14 -0400 X-Google-Smtp-Source: ADKCNb7pekd5tkWUy2CmHiLa9iX7mu5WNouuK5ViYQR46zX2qjJ0RV3ughmTzgCr+/w2N9TXVCfNTA== Date: Mon, 11 Sep 2017 09:45:23 +0900 From: Sergey Senozhatsky To: Laurent Dufour Cc: Sergey Senozhatsky , 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 Subject: Re: [PATCH v2 00/20] Speculative page faults Message-ID: <20170911004523.GA2938@jagdpanzerIV.localdomain> 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6302a906-221d-c977-4aea-67202eb3d96d@linux.vnet.ibm.com> User-Agent: Mutt/1.9.0 (2017-09-02) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 371 Lines: 15 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. -ss