From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ee0-f41.google.com (mail-ee0-f41.google.com [74.125.83.41]) by kanga.kvack.org (Postfix) with ESMTP id 88A9B6B00A7 for ; Sun, 13 Apr 2014 14:05:40 -0400 (EDT) Received: by mail-ee0-f41.google.com with SMTP id t10so5877656eei.0 for ; Sun, 13 Apr 2014 11:05:40 -0700 (PDT) Received: from mail-ee0-f45.google.com (mail-ee0-f45.google.com [74.125.83.45]) by mx.google.com with ESMTPS id p8si18104057eew.156.2014.04.13.11.05.38 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 13 Apr 2014 11:05:39 -0700 (PDT) Received: by mail-ee0-f45.google.com with SMTP id d17so5752012eek.18 for ; Sun, 13 Apr 2014 11:05:38 -0700 (PDT) Message-ID: <534AD1EE.3050705@colorfullife.com> Date: Sun, 13 Apr 2014 20:05:34 +0200 From: Manfred Spraul MIME-Version: 1.0 Subject: Re: [PATCH] ipc,shm: increase default size for shmmax References: <1396235199.2507.2.camel@buesod1.americas.hpqcorp.net> <1396306773.18499.22.camel@buesod1.americas.hpqcorp.net> <20140331161308.6510381345cb9a1b419d5ec0@linux-foundation.org> <1396308332.18499.25.camel@buesod1.americas.hpqcorp.net> <20140331170546.3b3e72f0.akpm@linux-foundation.org> <1396371699.25314.11.camel@buesod1.americas.hpqcorp.net> <1396377083.25314.17.camel@buesod1.americas.hpqcorp.net> <1396386062.25314.24.camel@buesod1.americas.hpqcorp.net> <20140401142947.927642a408d84df27d581e36@linux-foundation.org> <20140401144801.603c288674ab8f417b42a043@linux-foundation.org> <1396389751.25314.26.camel@buesod1.americas.hpqcorp.net> <20140401150843.13da3743554ad541629c936d@linux-foundation.org> In-Reply-To: <20140401150843.13da3743554ad541629c936d@linux-foundation.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Davidlohr Bueso , KOSAKI Motohiro , aswin@hp.com, LKML , "linux-mm@kvack.org" Hi Andrew, On 04/02/2014 12:08 AM, Andrew Morton wrote: > Well, I'm assuming 64GB==infinity. It *was* infinity in the RHEL5 > timeframe, but infinity has since become larger so pickanumber. I think infinity is the right solution: The only common case where infinity is wrong would be Android - and Android disables sysv shm entirely. There are two patches: http://marc.info/?l=linux-kernel&m=139730332306185&q=raw http://marc.info/?l=linux-kernel&m=139727299800644&q=raw Could you apply one of them? I wrote the first one, thus I'm biased which one is better. -- Manfred -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755287AbaDMSFk (ORCPT ); Sun, 13 Apr 2014 14:05:40 -0400 Received: from mail-ee0-f48.google.com ([74.125.83.48]:34820 "EHLO mail-ee0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754704AbaDMSFi (ORCPT ); Sun, 13 Apr 2014 14:05:38 -0400 Message-ID: <534AD1EE.3050705@colorfullife.com> Date: Sun, 13 Apr 2014 20:05:34 +0200 From: Manfred Spraul User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Andrew Morton CC: Davidlohr Bueso , KOSAKI Motohiro , aswin@hp.com, LKML , "linux-mm@kvack.org" Subject: Re: [PATCH] ipc,shm: increase default size for shmmax References: <1396235199.2507.2.camel@buesod1.americas.hpqcorp.net> <1396306773.18499.22.camel@buesod1.americas.hpqcorp.net> <20140331161308.6510381345cb9a1b419d5ec0@linux-foundation.org> <1396308332.18499.25.camel@buesod1.americas.hpqcorp.net> <20140331170546.3b3e72f0.akpm@linux-foundation.org> <1396371699.25314.11.camel@buesod1.americas.hpqcorp.net> <1396377083.25314.17.camel@buesod1.americas.hpqcorp.net> <1396386062.25314.24.camel@buesod1.americas.hpqcorp.net> <20140401142947.927642a408d84df27d581e36@linux-foundation.org> <20140401144801.603c288674ab8f417b42a043@linux-foundation.org> <1396389751.25314.26.camel@buesod1.americas.hpqcorp.net> <20140401150843.13da3743554ad541629c936d@linux-foundation.org> In-Reply-To: <20140401150843.13da3743554ad541629c936d@linux-foundation.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andrew, On 04/02/2014 12:08 AM, Andrew Morton wrote: > Well, I'm assuming 64GB==infinity. It *was* infinity in the RHEL5 > timeframe, but infinity has since become larger so pickanumber. I think infinity is the right solution: The only common case where infinity is wrong would be Android - and Android disables sysv shm entirely. There are two patches: http://marc.info/?l=linux-kernel&m=139730332306185&q=raw http://marc.info/?l=linux-kernel&m=139727299800644&q=raw Could you apply one of them? I wrote the first one, thus I'm biased which one is better. -- Manfred