From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262053AbUCQUhj (ORCPT ); Wed, 17 Mar 2004 15:37:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262052AbUCQUhj (ORCPT ); Wed, 17 Mar 2004 15:37:39 -0500 Received: from web60505.mail.yahoo.com ([216.109.116.126]:55742 "HELO web60505.mail.yahoo.com") by vger.kernel.org with SMTP id S262053AbUCQUgD (ORCPT ); Wed, 17 Mar 2004 15:36:03 -0500 Message-ID: <20040317203602.75866.qmail@web60505.mail.yahoo.com> Date: Wed, 17 Mar 2004 12:36:02 -0800 (PST) From: Carl Spalletta Subject: Re: 10MB buffer To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > I am running a SuSE 2.4.19 Kernel and have a requirement > to allocate a 10MB buffer (page aligned). I suppose you mean contiguous in physical memory? And accessible from userspace? > Is this possbile via alloc_bootmem_pages? This may be impossbile [sic]. see www.csn.ul.ie/~mel/projects/vm/guide/html/understand/node37.html also see LKML thread "Re: mapping physical memory": "tell the kernel that you have 8MB *less* RAM than is actually present using a "mem=" directive at boot, then grab that last piece of memory by mmap'ing /dev/mem." see utah-glx.sourceforge.net/memory-usage.html __________________________________ Do you Yahoo!? Yahoo! Mail - More reliable, more storage, less spam http://mail.yahoo.com