From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21821 invoked by alias); 23 Apr 2010 01:58:42 -0000 Received: (qmail 21794 invoked by uid 22791); 23 Apr 2010 01:58:38 -0000 X-SWARE-Spam-Status: No, hits=-0.9 required=5.0 tests=BAYES_00,RDNS_DYNAMIC,TO_NO_BRKTS_DYNIP X-Spam-Check-By: sourceware.org Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net (HELO sunset.davemloft.net) (74.93.104.97) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 23 Apr 2010 01:58:32 +0000 Received: from localhost (localhost [127.0.0.1]) by sunset.davemloft.net (Postfix) with ESMTP id 3545B24C112; Thu, 22 Apr 2010 18:58:36 -0700 (PDT) Date: Fri, 23 Apr 2010 01:58:00 -0000 Message-Id: <20100422.185835.104048486.davem@davemloft.net> To: hjl.tools@gmail.com Cc: iant@google.com, suresh.b.siddha@intel.com, jreiser@bitwagon.com, binutils@sourceware.org Subject: Re: Help needed to track down bug: linking Linux kernel with gold creates unbootable kernel From: David Miller In-Reply-To: References: Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact binutils-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: binutils-owner@sourceware.org X-SW-Source: 2010-04/txt/msg00347.txt.bz2 From: "H.J. Lu" Date: Thu, 22 Apr 2010 18:46:14 -0700 > The idea of 2MB maximum page size is we may use variable > page size one day without recompiling everything. Indeed. Because it's 64k on sparc (even 32-bit) I was at least able to experiment with such things. In fact doesn't the x86_64 specification explicitly state that the default maximum page size is to be 2MB in ELF objects? Finally, I really don't personally buy the argument that the 64-bit address space will be seriously taken close to exhaustion due to a 2MB maximum page size, even with hundreds of shared libraries. We have 2^32 times (or a similar order of magnitude) more address space available than on 32-bit.