From owner-freebsd-sparc64@FreeBSD.ORG Tue Aug 23 13:44:24 2011 Return-Path: Delivered-To: freebsd-sparc64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CF12A1065674 for ; Tue, 23 Aug 2011 13:44:24 +0000 (UTC) (envelope-from nwhitehorn@freebsd.org) Received: from adsum.doit.wisc.edu (adsum.doit.wisc.edu [144.92.197.210]) by mx1.freebsd.org (Postfix) with ESMTP id A1C2C8FC17 for ; Tue, 23 Aug 2011 13:44:24 +0000 (UTC) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; CHARSET=US-ASCII; format=flowed Received: from avs-daemon.smtpauth1.wiscmail.wisc.edu by smtpauth1.wiscmail.wisc.edu (Sun Java(tm) System Messaging Server 7u2-7.05 32bit (built Jul 30 2009)) id <0LQD00F00SPZQT00@smtpauth1.wiscmail.wisc.edu> for freebsd-sparc64@freebsd.org; Tue, 23 Aug 2011 07:44:24 -0500 (CDT) Received: from comporellon.tachypleus.net (adsl-75-50-90-245.dsl.mdsnwi.sbcglobal.net [75.50.90.245]) by smtpauth1.wiscmail.wisc.edu (Sun Java(tm) System Messaging Server 7u2-7.05 32bit (built Jul 30 2009)) with ESMTPSA id <0LQD006V4SPY2F20@smtpauth1.wiscmail.wisc.edu>; Tue, 23 Aug 2011 07:44:23 -0500 (CDT) Date: Tue, 23 Aug 2011 07:44:21 -0500 From: Nathan Whitehorn In-reply-to: <20110823120414.GB73912@alchemy.franken.de> To: Marius Strobl Message-id: <4E53A0A5.6010304@freebsd.org> X-Spam-Report: AuthenticatedSender=yes, SenderIP=75.50.90.245 X-Spam-PmxInfo: Server=avs-13, Version=5.6.1.2065439, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2011.8.23.123314, SenderIP=75.50.90.245 References: <20110822204539.69efd311.torfinn.ingolfsen@broadpark.no> <20110823120414.GB73912@alchemy.franken.de> User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:6.0) Gecko/20110819 Thunderbird/6.0 Cc: freebsd-sparc64@freebsd.org Subject: Re: Blade 1000 - fan control and / or environmental monitoring? X-BeenThere: freebsd-sparc64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the Sparc List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Aug 2011 13:44:24 -0000 On 08/23/11 07:04, Marius Strobl wrote: > On Mon, Aug 22, 2011 at 08:45:39PM +0200, Torfinn Ingolfsen wrote: >> I notice that when my Blade 1000 runs FreeBSD (now upgraded to 8.2-stable), >> the fans runn at full blast. >> But when it runs Solaris, the speed of the fans is regulated. >> >> Do we have any fan control / enironmental montoring for Blade 1000 in FreeBSD? > No, FreeBSD/sparc64 doesn't support OS-based fan control. FreeBSD/powerpc > has a one-off solution for fan control in the kernel but I think the > proper way to implement this is with a userland daemon via a MI actuators > and sensors framework with just a safety belt in the kernel that switches > fans to full speed in case the daemon dies or the machine panics (in > principle that also is how Open(Solaris) controls the fans in B1K). > Unfortunately such a framework hasn't happened so far ... > The stuff we wrote for PowerPC could become MI with an svn mv. The userland daemon approach is supported, though it could be supported better, in addition to a simpleminded kernel process that runs in the absence of that daemon so that the machine does not howl like a banshee during the installer and single-user-mode. -Nathan