From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sp1n293en1.watson.ibm.com (sp1n293en1.watson.ibm.com [9.2.112.57]) by igw2.watson.ibm.com (8.11.4/8.11.4) with ESMTP id h1RLlDj32060 for ; Thu, 27 Feb 2003 16:47:13 -0500 Received: from watson.ibm.com (discohall.watson.ibm.com [9.2.17.22]) by sp1n293en1.watson.ibm.com (8.11.4/8.11.4) with ESMTP id h1RLlCV51024 for ; Thu, 27 Feb 2003 16:47:12 -0500 Message-ID: <3E5E8832.688AE0CB@watson.ibm.com> Date: Thu, 27 Feb 2003 16:50:42 -0500 From: "Raymond B. Jennings III" Reply-To: raymondj@watson.ibm.com MIME-Version: 1.0 Subject: Top 128MB of virtual address space Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org List-ID: For linux running on an Intel machine without PAE, the top 128MB of virtual address space: If PKMAP_BASE = FE000000 and FIXADDR_START=FFF55000 That leaves a 32MB area. I believe the permanent highmem mappings are 1024 pages so that leaves 28MB of address space. What is this space used for if anything? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org