Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750963AbVKQOm0 (ORCPT ); Thu, 17 Nov 2005 09:42:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750965AbVKQOm0 (ORCPT ); Thu, 17 Nov 2005 09:42:26 -0500 Received: from cantor.suse.de ([195.135.220.2]:6537 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S1750946AbVKQOmZ (ORCPT ); Thu, 17 Nov 2005 09:42:25 -0500 From: Andi Kleen To: "Wed, 16 Nov 2005 21:46:05 +0100" Subject: Re: [2.6 patch] i386: always use 4k stacks Date: Thu, 17 Nov 2005 03:01:00 +0100 User-Agent: KMail/1.8.2 Cc: Benjamin LaHaise , bunk@stusta.de, arjan@infradead.org, oliver@neukum.org, jmerkey@utah-nac.org, joern@wohnheim.fh-wedel.de, alex14641@yahoo.com, linux-kernel@vger.kernel.org References: <20051116005034.73421.qmail@web50210.mail.yahoo.com> <20051116190334.GC982@kvack.org> <20051116214605.545d1e4e.grundig@teleline.es> In-Reply-To: <20051116214605.545d1e4e.grundig@teleline.es> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 8bit Content-Disposition: inline Message-Id: <200511170301.01910.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 803 Lines: 23 On Wednesday 16 November 2005 21:46, Wed, 16 Nov 2005 21:46:05 +0100 wrote: > El Wed, 16 Nov 2005 14:03:34 -0500, > Benjamin LaHaise escribi?: > > > We could implement a stack guard page for the transition period, so that > > CONFIG_DEBUG_STACKOVERFLOW doesn't do that but it looks useful too. > > Does CONFIG_DEBUG_STACKOVERFLOW harm performance a lot? (doesn't > look like that for a newbie's eye) No, it's very cheap. In fact it could be probably enabled by default. -Andi P.S.: Can you please chose a less irritating realname? - 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/