From owner-freebsd-hackers@FreeBSD.ORG Thu May 15 18:19:06 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A2815106564A for ; Thu, 15 May 2008 18:19:06 +0000 (UTC) (envelope-from jhs@berklix.org) Received: from flat.berklix.org (flat.berklix.org [83.236.223.115]) by mx1.freebsd.org (Postfix) with ESMTP id 16EA28FC19 for ; Thu, 15 May 2008 18:19:05 +0000 (UTC) (envelope-from jhs@berklix.org) Received: from js.berklix.net (p549A4901.dip.t-dialin.net [84.154.73.1]) (authenticated bits=0) by flat.berklix.org (8.13.8/8.13.8) with ESMTP id m4FIJ36q017895; Thu, 15 May 2008 20:19:04 +0200 (CEST) (envelope-from jhs@berklix.org) Received: from fire.js.berklix.net (fire.js.berklix.net [192.168.91.41]) by js.berklix.net (8.13.8/8.13.8) with ESMTP id m4FIOPvj007745; Thu, 15 May 2008 20:24:25 +0200 (CEST) (envelope-from jhs@berklix.org) Received: from fire.js.berklix.net (localhost [127.0.0.1]) by fire.js.berklix.net (8.13.8/8.13.8) with ESMTP id m4FIOFBm000937; Thu, 15 May 2008 20:24:25 +0200 (CEST) (envelope-from jhs@fire.js.berklix.net) Message-Id: <200805151824.m4FIOFBm000937@fire.js.berklix.net> To: freebsd-hackers@freebsd.org From: "Julian Stacey" Organization: http://berklix.com BSD Linux Unix Consultancy, Munich Germany. User-agent: EXMH on FreeBSD http://berklix.com/free/ X-URL: http://berklix.com/~jhs/cv/ Date: Thu, 15 May 2008 20:24:15 +0200 Sender: jhs@berklix.org Cc: Subject: Not seeing enough memory though its there. X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 May 2008 18:19:06 -0000 Hi Hackers cc Gary J, On a Compaq Pressario 2254 with 7.0-Release & Generic kernel, I'm not seeing enough RAM: A 128M DIM reports as 56M, a 256M reports as 96M. Any ideas please ? dmesg FreeBSD 7.0-RELEASE #0: Sun Feb 24 19:59:52 UTC 2008 root@logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: AMD-K6tm w/ multimedia extensions (233.03-MHz 586-class CPU) Origin = "AuthenticAMD" Id = 0x562 Stepping = 2 Features=0x8001bf AMD Features=0x400<> real memory = 100663296 (96 MB) avail memory = 84484096 (80 MB) pnpbios: Bad PnP BIOS data checksum # Dont know why bad With a 128M RAM Without hw.physmem= in /boot/loader.conf dmesg real memory = 58720256 (56 MB) avail memory = 43507712 (41 MB) sysctl -a | grep mem hw.physmem: 45572096 hw.usermem: 33267712 hw.realmem: 58720256 With /boot/loader.conf hw.physmem=134217728 same as above except hw.usermem: 33312768 With a 256 RAM power on Bios auto resizes to about 96M ! Without hw.physmem= dmesg real memory = 100663296 (96 MB) avail memory = 84484096 (80 MB) sysctl -a | grep mem hw.physmem: 87515136 hw.usermem: 74280960 hw.realmem: 100663296 With /boot/loader.conf hw.physmem=268435456 same as above except hw.usermem: 74141696 This Compaq has just 1 RAM slot. The RAM DIMs used: 128M RAM (original far as I know from PC in Germany) Module Paper Label: 128MB Sync 133 MHz CL3; 168 pin DIM, 13.3 x 3 cm, Slots: 1 in middle, + 1 @ 2.45 mm from end with pins 1 & 85 2 sides x 8 chips: Ramos 0131, RC28S0801B1-13AC 256M borrowed from another PC bought in UK (with 2 completely different RAM sources, unlikey both might be accidentaly or deliberately mislabeled (as occasionals occurs re CT mag article on cache chips some years back) Module Paper Label: IRL DEM DP133 064323E PC133 333 520 256MB 0137-2328-062[56] 2 sides x 8 chips: Hynix 132A, HY57V2882DAT-H I did check hw.physmem can set (reduce at least) in 7.0 /boot/loader.conf, on another laptop, after a reboot, from 512M to 256M). Julian -- Julian Stacey: BSDUnixLinux C Prog Admin SysEng Consult Munich www.berklix.com Mail just Ascii plain text. HTML & Base64 text are spam.