From owner-freebsd-questions Wed Jan 8 20:29:27 2003 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5ADBC37B401 for ; Wed, 8 Jan 2003 20:29:26 -0800 (PST) Received: from smtp.comcast.net (smtp.comcast.net [24.153.64.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id E58DC43F65 for ; Wed, 8 Jan 2003 20:29:25 -0800 (PST) (envelope-from jshenry@comcast.net) Received: from whitetower (bgp01561290bgs.gambrl01.md.comcast.net [68.50.33.221]) by mtaout02.icomcast.net (iPlanet Messaging Server 5.2 HotFix 1.07 (built Nov 25 2002)) with ESMTP id <0H8F00A6PJ4N5D@mtaout02.icomcast.net> for questions@freebsd.org; Wed, 08 Jan 2003 23:29:11 -0500 (EST) Date: Wed, 08 Jan 2003 23:29:11 -0500 (EST) From: "J. Seth Henry" Subject: FreeBSD and AMD power management X-X-Sender: jshenry@whitetower.gambrl01.md.comcast.net To: questions@freebsd.org Message-id: <20030108232002.G61746-100000@whitetower.gambrl01.md.comcast.net> MIME-version: 1.0 Content-type: TEXT/PLAIN; charset=US-ASCII Content-transfer-encoding: 7BIT Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I have noticed that my Compaq IA-1's (AMD K6-2/266 & VIA chipset) run substantially hotter under FreeBSD than under Linux. I didn't realize just how much until the machines began spontaneously rebooting under load. Right now, I have a minimal 4.7R install (with X) running from a microdrive - but I don't have problems until I start running X for long periods of time. I am migrating from Midori linux with kernel rev 2.4.18, and it can go for weeks (even months) running xmms locally. Just windowing xmms from another machine will cause spontanous reboots under FreeBSD. It doesn't appear to be a kernel panic - this machine has a thermal protection circuit which will hold the system in reset if it gets too warm, and so far, nothing has shown up in the logs (beyond the usual startup message regarding / being unmounted improperly). This leads me to believe that FreeBSD isn't issuing halts when it is idle, or the CPU is simply "idle" less. I have noticed that FreeBSD accesses the microdrive a *lot* (though Linux may be as well, but I can't hear it because it's running from flash) Is this a "normal" limitation in FreeBSD, or did I miss something in the kernel config? Thanks, Seth Henry jshamletcomcast(dot)net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message