From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by oss.sgi.com id ; Tue, 1 Feb 2000 09:06:16 -0800 Received: from sgi.SGI.COM ([192.48.153.1]:19975 "EHLO sgi.com") by oss.sgi.com with ESMTP id ; Tue, 1 Feb 2000 09:06:08 -0800 Received: from cthulhu.engr.sgi.com (cthulhu.engr.sgi.com [192.26.80.2]) by sgi.com (980327.SGI.8.8.8-aspam/980304.SGI-aspam: SGI does not authorize the use of its proprietary systems or networks for unsolicited or bulk email from the Internet.) via ESMTP id JAA00617; Tue, 1 Feb 2000 09:09:07 -0800 (PST) mail_from (owner-linux@cthulhu.engr.sgi.com) Received: (from majordomo-owner@localhost) by cthulhu.engr.sgi.com (980427.SGI.8.8.8/970903.SGI.AUTOCF) id IAA65150 for linux-list; Tue, 1 Feb 2000 08:43:19 -0800 (PST) mail_from (owner-linux@relay.engr.sgi.com) Received: from sgi.com (sgi.engr.sgi.com [192.26.80.37]) by cthulhu.engr.sgi.com (980427.SGI.8.8.8/970903.SGI.AUTOCF) via ESMTP id IAA66574 for ; Tue, 1 Feb 2000 08:43:14 -0800 (PST) mail_from (jharrell@ti.com) Received: from gatekeep.ti.com (gatekeep.ti.com [192.94.94.61]) by sgi.com (980327.SGI.8.8.8-aspam/980304.SGI-aspam: SGI does not authorize the use of its proprietary systems or networks for unsolicited or bulk email from the Internet.) via ESMTP id IAA02852 for ; Tue, 1 Feb 2000 08:43:13 -0800 (PST) mail_from (jharrell@ti.com) Received: from dlep6.itg.ti.com ([157.170.188.9]) by gatekeep.ti.com (8.9.3/8.9.3) with ESMTP id KAA05495 for ; Tue, 1 Feb 2000 10:43:12 -0600 (CST) Received: from dlep6.itg.ti.com (localhost [127.0.0.1]) by dlep6.itg.ti.com (8.9.3/8.9.3) with ESMTP id KAA17154 for ; Tue, 1 Feb 2000 10:43:07 -0600 (CST) Received: from dlep4.itg.ti.com (dlep4.itg.ti.com [157.170.188.63]) by dlep6.itg.ti.com (8.9.3/8.9.3) with ESMTP id KAA17133 for ; Tue, 1 Feb 2000 10:43:06 -0600 (CST) Received: from ti.com (IDENT:jharrell@pcp97780pcs.sc.ti.com [158.218.100.100]) by dlep4.itg.ti.com (8.9.3/8.9.3) with ESMTP id KAA09445 for ; Tue, 1 Feb 2000 10:43:10 -0600 (CST) Message-ID: <38970DA5.165EDA0F@ti.com> Date: Tue, 01 Feb 2000 09:45:25 -0700 From: Jeff Harrell X-Mailer: Mozilla 4.61 [en] (X11; U; Linux 2.2.12-20 i686) X-Accept-Language: en MIME-Version: 1.0 To: sgi-mips Subject: Question concerning memory configuration variables Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linuxmips@oss.sgi.com Precedence: bulk Return-Path: X-Orcpt: rfc822;linuxmips-outgoing I have been looking at 2.2.23 and noticed that a few things concerning memory paging has changed. I wonder if anybody could give me a definition of a couple of the variables that are defined. The first is the max_low_pfn variable. It looks like the first time that I see this called is during the paging_init() function and passed to free_area_init(). The memory map size is determined from this variable. It memory map will extend to the end of physical memory (what used to be mips_memory_ upper). Do I determine the max_low_pfn by calculating the available memory and subtract the size of the kernel? How does the variable "start" play into this equation? Are they the same? Any help would be greatly appreciated. Thanks, Jeff -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Jeff Harrell Work: (801) 619-6104 Broadband Access group/TI jharrell@ti.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~