Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751473Ab2JASzl (ORCPT ); Mon, 1 Oct 2012 14:55:41 -0400 Received: from shutemov.name ([176.9.204.213]:59669 "EHLO shutemov.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751221Ab2JASzj (ORCPT ); Mon, 1 Oct 2012 14:55:39 -0400 Date: Mon, 1 Oct 2012 21:56:11 +0300 From: "Kirill A. Shutemov" To: "H. Peter Anvin" Cc: Andrea Arcangeli , "Kirill A. Shutemov" , Andrew Morton , linux-mm@kvack.org, Andi Kleen , linux-kernel@vger.kernel.org, Arnd Bergmann , Ingo Molnar , linux-arch@vger.kernel.org Subject: Re: [PATCH 0/3] Virtual huge zero page Message-ID: <20121001185611.GA23132@shutemov.name> References: <20120929134811.GC26989@redhat.com> <5069B804.6040902@linux.intel.com> <20121001163118.GC18051@redhat.com> <5069CCF9.7040309@linux.intel.com> <20121001172624.GD18051@redhat.com> <5069D3D8.9070805@linux.intel.com> <20121001173604.GC20915@shutemov.name> <5069D4D3.1040003@linux.intel.com> <20121001174420.GA21490@shutemov.name> <5069D846.6000104@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5069D846.6000104@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 839 Lines: 21 On Mon, Oct 01, 2012 at 10:52:06AM -0700, H. Peter Anvin wrote: > On 10/01/2012 10:44 AM, Kirill A. Shutemov wrote: > > On Mon, Oct 01, 2012 at 10:37:23AM -0700, H. Peter Anvin wrote: > >> One can otherwise argue that if hzp doesn't matter for except in a small > >> number of cases that we shouldn't use it at all. > > > > These small number of cases can easily trigger OOM if THP is enabled. :) > > > > And that doesn't happen in any conditions that *aren't* helped by hzp? Sure, OOM still can happen. But if we can eliminate a class of problem why not to do so? -- Kirill A. Shutemov -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/