From owner-freebsd-stable@FreeBSD.ORG Thu Jul 21 21:43:13 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 17FCE106566B for ; Thu, 21 Jul 2011 21:43:13 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta03.emeryville.ca.mail.comcast.net (qmta03.emeryville.ca.mail.comcast.net [76.96.30.32]) by mx1.freebsd.org (Postfix) with ESMTP id F24548FC08 for ; Thu, 21 Jul 2011 21:43:12 +0000 (UTC) Received: from omta24.emeryville.ca.mail.comcast.net ([76.96.30.92]) by qmta03.emeryville.ca.mail.comcast.net with comcast id AksN1h0021zF43QA3ljAKp; Thu, 21 Jul 2011 21:43:10 +0000 Received: from koitsu.dyndns.org ([67.180.84.87]) by omta24.emeryville.ca.mail.comcast.net with comcast id Alie1h0011t3BNj8kliegN; Thu, 21 Jul 2011 21:42:39 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id B8CE4102C36; Thu, 21 Jul 2011 14:43:10 -0700 (PDT) Date: Thu, 21 Jul 2011 14:43:10 -0700 From: Jeremy Chadwick To: Callum Gibson Message-ID: <20110721214310.GA74656@icarus.home.lan> References: <20110719112033.GA51765@omma.gibson.athome> <201107201928.54079.jkim@FreeBSD.org> <20110721022818.GA17771@omma.gibson.athome> <201107211207.41663.jkim@FreeBSD.org> <20110721205600.GA52261@omma.gibson.athome> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110721205600.GA52261@omma.gibson.athome> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-stable@FreeBSD.org, freebsd-amd64@FreeBSD.org, Jung-uk Kim Subject: Re: powernow regression in 8-STABLE X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jul 2011 21:43:13 -0000 On Fri, Jul 22, 2011 at 06:56:00AM +1000, Callum Gibson wrote: > On 21Jul11 12:07, Jung-uk Kim wrote: > }Can you please do "set debug.cpufreq.verbose=1" from loader prompt and > }show me the dmesg output? I want to see intial settings. You can > }reset it from command line with "sysctl debug.cpufreq.verbose=0" > }later. > > http://members.optusnet.com.au/callumgibson/boot_verboser.out > > Also, as suggested by jhb@, with legacy usb disabled: > http://members.optusnet.com.au/callumgibson/boot_verboser_nousb.out > and dev.cpu.0.freq reappears! Spooky. Is that a solution or a workaround? > I noticed this disables usb keyboard support at the boot menus. "Legacy USB" support is a horribly-named BIOS option. What the option actually does, without getting into the technicalities, is make your USB keyboard work inside of environments where there is no USB driver. The most commonly-used examples are bootloader/bootstraps and MS-DOS. The BIOS itself (meaning the firmware/BIOS, not "the BIOS as in a piece of legacy technology") has a tiny USB stack in it. That's how your USB keyboard is able to work (e.g. to press Del or F2 to get into the BIOS itself), and how you're able to boot from USB-attached devices. You should keep "Legacy USB" enabled if you want your keyboard to work in bootloaders/bootstraps. If enabling this feature breaks something else, that sounds like a bug in the vendor BIOS to me, and you should contact the vendor or motherboard manufacturer to inform them of the bug. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, US | | Making life hard for others since 1977. PGP 4BD6C0CB |