From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751150AbWFFKtc (ORCPT ); Tue, 6 Jun 2006 06:49:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751151AbWFFKtc (ORCPT ); Tue, 6 Jun 2006 06:49:32 -0400 Received: from faui03.informatik.uni-erlangen.de ([131.188.30.103]:24275 "EHLO faui03.informatik.uni-erlangen.de") by vger.kernel.org with ESMTP id S1751150AbWFFKtc (ORCPT ); Tue, 6 Jun 2006 06:49:32 -0400 Date: Tue, 6 Jun 2006 12:49:30 +0200 From: Thomas Glanzmann To: Andi Kleen Cc: linux-kernel@vger.kernel.org Subject: Re: AMD64: 64 bit kernel 32 bit userland - some pending questions Message-ID: <20060606104930.GN4552@cip.informatik.uni-erlangen.de> Mail-Followup-To: Thomas Glanzmann , Andi Kleen , linux-kernel@vger.kernel.org References: <20060606093456.GL4552@cip.informatik.uni-erlangen.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello Andi, > The main caveat is that iptables and ipsec need 64bit executables to > be set up. The rest should work. I see. But that isn't a showstopper for me because I can compile iptables myself and the machines are protected through another firewall anyway. > The default is 4GB, but you can get 3GB by running it under linux32 > --3gb 4 Gbyte is fine for me. > The 64bit kernel never uses highmem. I see, it wouldn't make any sense. > If all fails you can get a cross compiler from crosstool. > Then normal kernel compilation command with > make ... ARCH=x86_64 CROSS_COMPILE=x86_64-linux- I see. Thanks a lot for your feedback, Thomas