Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 19 Dec 2002 09:14:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 19 Dec 2002 09:14:29 -0500 Received: from bjl1.asuk.net.64.29.81.in-addr.arpa ([81.29.64.88]:13799 "EHLO bjl1.asuk.net") by vger.kernel.org with ESMTP id ; Thu, 19 Dec 2002 09:14:29 -0500 Date: Thu, 19 Dec 2002 14:22:12 +0000 From: Jamie Lokier To: Dave Jones , bart@etpmod.phys.tue.nl, torvalds@transmeta.com, hpa@transmeta.com, terje.eggestad@scali.com, drepper@redhat.com, matti.aarnio@zmailer.org, hugh@veritas.com, mingo@elte.hu, linux-kernel@vger.kernel.org Subject: Re: Intel P6 vs P7 system call performance Message-ID: <20021219142212.GA17324@bjl1.asuk.net> References: <20021219132239.4650B51F88@gum12.etpnet.phys.tue.nl> <20021219133848.GB32524@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20021219133848.GB32524@suse.de> User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 633 Lines: 20 Dave Jones wrote: > > Static binaries can just directly jump/call into the magic page. > > .. and explode nicely when you try to run them on an older kernel > without the new syscall magick. This is what Linus' first > proof-of-concept code did. No, because the static binary installs a SIGSEGV handler to emulate the magic page on older kernels :) -- Jamie - 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/