From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3xrJ0H3BXfzDrnS for ; Mon, 11 Sep 2017 16:28:31 +1000 (AEST) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v8B6O2Sx051718 for ; Mon, 11 Sep 2017 02:28:27 -0400 Received: from e06smtp10.uk.ibm.com (e06smtp10.uk.ibm.com [195.75.94.106]) by mx0b-001b2d01.pphosted.com with ESMTP id 2cw7cnmetg-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 11 Sep 2017 02:28:27 -0400 Received: from localhost by e06smtp10.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 11 Sep 2017 07:28:25 +0100 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 MIME-Version: 1.0 In-Reply-To: <20170911004523.GA2938@jagdpanzerIV.localdomain> Content-Type: text/plain; charset=utf-8 Message-Id: List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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.