Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756870AbZJKRfM (ORCPT ); Sun, 11 Oct 2009 13:35:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756006AbZJKRfJ (ORCPT ); Sun, 11 Oct 2009 13:35:09 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:39281 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755317AbZJKRfI (ORCPT ); Sun, 11 Oct 2009 13:35:08 -0400 Date: Sun, 11 Oct 2009 10:34:16 -0700 (PDT) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Benjamin Herrenschmidt cc: Jeff Chua , Valdis.Kletnieks@vt.edu, Tomasz Chmielewski , Daniel J Blueman , Byron Stanoszek , Dave Hansen , Hugh Dickins , Linux Kernel , Andrew Morton , Hugh Dickins Subject: Re: 2.6.32-rc3: low mem - only 378MB on x86_32 with 64GB. Why? In-Reply-To: <1255251993.2192.36.camel@pasglop> Message-ID: References: <1255251993.2192.36.camel@pasglop> User-Agent: Alpine 2.01 (LFD 1184 2008-12-16) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 752 Lines: 23 On Sun, 11 Oct 2009, Benjamin Herrenschmidt wrote: > > > > It's supposed to be easier these days, but I guess distros don't compile > > in support for 64-bit mode by default. Just using another machine may be > > the simplest approach, if you have any 64-bit distro around. > > My experience is that most distros have a compiler capable of generating > a 64-bits kernel At least not Fedora x86. Doing "gcc -m64" results in sorry, unimplemented: 64-bit mode not compiled in on my laptop. Linus -- 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/