From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-x243.google.com (mail-pf0-x243.google.com [IPv6:2607:f8b0:400e:c00::243]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3xr8Rh3KGPzDrb9 for ; Mon, 11 Sep 2017 10:48:16 +1000 (AEST) Received: by mail-pf0-x243.google.com with SMTP id q76so4232805pfq.5 for ; Sun, 10 Sep 2017 17:48:16 -0700 (PDT) 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 In-Reply-To: <6302a906-221d-c977-4aea-67202eb3d96d@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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