From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264592AbUE0Ouj (ORCPT ); Thu, 27 May 2004 10:50:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264596AbUE0Ouj (ORCPT ); Thu, 27 May 2004 10:50:39 -0400 Received: from ppp-217-133-42-200.cust-adsl.tiscali.it ([217.133.42.200]:16265 "EHLO dualathlon.random") by vger.kernel.org with ESMTP id S264592AbUE0Ouh (ORCPT ); Thu, 27 May 2004 10:50:37 -0400 Date: Thu, 27 May 2004 16:50:33 +0200 From: Andrea Arcangeli To: Brian Gerst Cc: Ingo Molnar , =?iso-8859-1?Q?J=F6rn?= Engel , Arjan van de Ven , Rik van Riel , Linus Torvalds , linux-kernel@vger.kernel.org Subject: Re: 4k stacks in 2.6 Message-ID: <20040527145033.GF3889@dualathlon.random> References: <20040525211522.GF29378@dualathlon.random> <20040526103303.GA7008@elte.hu> <20040526125014.GE12142@wohnheim.fh-wedel.de> <20040526125300.GA18028@devserv.devel.redhat.com> <20040526130047.GF12142@wohnheim.fh-wedel.de> <20040526130500.GB18028@devserv.devel.redhat.com> <20040526164129.GA31758@wohnheim.fh-wedel.de> <20040527124551.GA12194@elte.hu> <20040527135930.GC3889@dualathlon.random> <40B5F8C0.2010005@didntduck.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <40B5F8C0.2010005@didntduck.org> X-GPG-Key: 1024D/68B9CB43 13D9 8355 295F 4823 7C49 C012 DFA1 686E 68B9 CB43 X-PGP-Key: 1024R/CB4660B9 CC A0 71 81 F4 A0 63 AC C0 4B 81 1D 8C 15 C8 E5 User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 27, 2004 at 10:18:40AM -0400, Brian Gerst wrote: > The problem on i386 (unlike x86-64) is that the thread_info struct sits > at the bottom of the stack and is referenced by masking bits off %esp. > So the stack size must be constant whether in process context or IRQ > context. so what, that's a minor implementation detail, pda is a software thing.