Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946509AbXEAFMh (ORCPT ); Tue, 1 May 2007 01:12:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1946592AbXEAFMg (ORCPT ); Tue, 1 May 2007 01:12:36 -0400 Received: from holomorphy.com ([66.93.40.71]:38499 "EHLO holomorphy.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946509AbXEAFMf (ORCPT ); Tue, 1 May 2007 01:12:35 -0400 Date: Mon, 30 Apr 2007 22:11:55 -0700 From: William Lee Irwin III To: Eric Dumazet Cc: Andi Kleen , Mark Lord , ebiederm@xmission.com, patches@x86-64.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] [30/30] x86_64: Add missing !X86_PAE dependincy to the 2G/2G split. Message-ID: <20070501051155.GS19966@holomorphy.com> References: <20070501557.815359000@suse.de> <20070501035829.1C93D13CAF@wotan.suse.de> <20070501043735.GR31925@holomorphy.com> <4636C8AF.6080404@cosmosbay.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4636C8AF.6080404@cosmosbay.com> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1369 Lines: 30 William Lee Irwin III a ?crit : >> There's some sort of insanity going on here. Since when is 0x78000000 >> a 2GB/2GB split? Mark, dare I ask what you were thinking? That should >> be VMSPLIT_2G_OPT for 2GB laptops analogously to VMSPLIT_3G_OPT, if >> nothing else, as it's certainly not 2GB/2GB. On Tue, May 01, 2007 at 06:57:19AM +0200, Eric Dumazet wrote: > Please could you stop saying others are insane ? > They are like you and can fail sometime. Apparently when the patch came, > nobody (including you) commented. > It's not that difficult to think about VMALLOC space (I might be wrong > about this, but I feel this explains 78000000 vs 80000000) I'm obviously aware of vmallocspace. Read carefully: >> a 2GB/2GB split? Mark, dare I ask what you were thinking? That should >> be VMSPLIT_2G_OPT for 2GB laptops analogously to VMSPLIT_3G_OPT, if >> nothing else, as it's certainly not 2GB/2GB. The meaning of "for laptops" is that it's carving out a chunk of user virtualspace to use for vmallocspace in lieu of carving out a piece of the 1:1 mapping of physical memory for the same purpose. -- wli - 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/