From owner-freebsd-drivers@FreeBSD.ORG Mon Jul 9 10:59:34 2012 Return-Path: Delivered-To: freebsd-drivers@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 16D9D1065672; Mon, 9 Jul 2012 10:59:34 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 0E3968FC16; Mon, 9 Jul 2012 10:59:29 +0000 (UTC) Received: from odyssey.starpoint.kiev.ua (alpha-e.starpoint.kiev.ua [212.40.38.101]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id NAA02773; Mon, 09 Jul 2012 13:59:21 +0300 (EEST) (envelope-from avg@FreeBSD.org) Message-ID: <4FFAB988.6050209@FreeBSD.org> Date: Mon, 09 Jul 2012 13:59:20 +0300 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:13.0) Gecko/20120625 Thunderbird/13.0.1 MIME-Version: 1.0 To: "mnln.l4" References: In-Reply-To: X-Enigmail-Version: 1.4.2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-stable@FreeBSD.org, freebsd-drivers@FreeBSD.org Subject: Re: Doesn't LAPIC timer stop when CPU goes to sleep state? X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Jul 2012 10:59:34 -0000 on 09/07/2012 08:41 mnln.l4 said the following: > I have FreeBSD 9.0-STABLE r237285, In my systl -a output, I see > > kern.eventimer.et.LAPIC.flags: 7 > > I am under the impression LAPIC timer may stop when CPU goes to sleep > state. Shouldn't the flag be 15 as the example in EVENTTIMERS(4) man > page? You don't have to be under an impression when you can get the facts from publicly available specifications and code. > I have H67MA-E35 motherboard with Intel H67 chipset, and G840 dual core CPU. > > Thanks. -- Andriy Gapon