From owner-svn-src-head@FreeBSD.ORG Mon May 20 13:20:53 2013 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id DB4DDCDF for ; Mon, 20 May 2013 13:20:53 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from mail-pa0-f54.google.com (mail-pa0-f54.google.com [209.85.220.54]) by mx1.freebsd.org (Postfix) with ESMTP id B6B7B879 for ; Mon, 20 May 2013 13:20:53 +0000 (UTC) Received: by mail-pa0-f54.google.com with SMTP id kx1so5651874pab.27 for ; Mon, 20 May 2013 06:20:53 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:sender:subject:mime-version:content-type:from :in-reply-to:date:cc:content-transfer-encoding:message-id:references :to:x-mailer:x-gm-message-state; bh=HF7Xfkqil7aBibElnZExaw9mU4zDgTMoyp8QCByWGi4=; b=Ar+NMtmHFsLhz/jzmgWcVPJQvLYvKrQW7sqQsslSViKJ2n64pkKH6K+6NRT2M9xAJR K9LO6cAcO8PMAcE5F3/GLCPSDs9K8sTnVp1DMkhjrWQmr3jyJsrbRFdnKJoQF2QPMGLR BbqIoT9abKPZka4fihFBhQwrpXqHfzd2rGlEiYYZaSxrqEGPT04DypTfpBcW82OzvhuF kiSHFrVa51WXFfytxM/jdmljudDI8c9x1z5bDWNkhUu4g4vZwSRhbEYN6GAHH7eS/vxX xZJaKgRQqoKRfYO2f0pig25EY930UGIRIzua8uHPwkZo1f0xh+fQYYoD79PwFQqQqPcb Bd9Q== X-Received: by 10.66.220.197 with SMTP id py5mr28569192pac.86.1369056052988; Mon, 20 May 2013 06:20:52 -0700 (PDT) Received: from 53.imp.bsdimp.com (50-78-194-198-static.hfc.comcastbusiness.net. [50.78.194.198]) by mx.google.com with ESMTPSA id ya4sm24130382pbb.24.2013.05.20.06.20.50 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 20 May 2013 06:20:51 -0700 (PDT) Sender: Warner Losh Subject: Re: svn commit: r247086 - head/sys/x86/isa Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: text/plain; charset=us-ascii From: Warner Losh In-Reply-To: <20130520022100.GA82181@FreeBSD.org> Date: Mon, 20 May 2013 07:20:48 -0600 Content-Transfer-Encoding: quoted-printable Message-Id: <73F6A8D9-3366-47AB-9DE9-E570006E3A3F@bsdimp.com> References: <201302210638.r1L6cOVx006678@svn.freebsd.org> <20130221064912.GA20360@FreeBSD.org> <20130520022100.GA82181@FreeBSD.org> To: Alexey Dokuchaev X-Mailer: Apple Mail (2.1085) X-Gm-Message-State: ALoCoQkvmr7FI+W6Q5IE1rpSG0/SCX4ypf1Co+j/CS1oqr8kX1VWeTnEFg4KxqX8CkC+DHf5KbgQ Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Warner Losh X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 May 2013 13:20:53 -0000 On May 19, 2013, at 8:21 PM, Alexey Dokuchaev wrote: > On Thu, Feb 21, 2013 at 06:49:12AM +0000, Alexey Dokuchaev wrote: >> On Thu, Feb 21, 2013 at 06:38:24AM +0000, Warner Losh wrote: >>> New Revision: 247086 >>> URL: http://svnweb.freebsd.org/changeset/base/247086 >>>=20 >>> Log: >>> Correct comment about use of pmtimer, and the real reason it isn't >>> used or desirable for amd64. >>=20 >> Thanks! >>=20 >>> + * pmtimer is used only with the old APM power management, and not = with >>> + * acpi, which is required for amd64, so skip it in that case. >>=20 >> Does it also mean it should be removed from ACPI-driven i386 machines = kernel >> configs? >=20 > Apparently not: I've been running FreeBSD 8.4-PRERELEASE without = pmtimer for > a while, and noticed that my laptop stops keeping time during suspend. = I've > never noticed that behavior before (presumably, with pmtimer). >=20 > I've found this old thread [1] on -current@ from Jan 2001 where = src/UPDATING > is quoted: >=20 > The new pmtimer device is necessary for laptops. Failure to > include the device will cause suspended laptops losing time > when they resume. >=20 > I will soon rebuild the kernel and put pmtimer back to see it fixes = time > keeping for me. If it will, apparently it is still useful for i386, = and > not just for APM, but ACPI as well... It fights ACPI in what it does... It was needed for APM... Let me know = how it turns out... Warner > ./danfe >=20 > [1] = http://www.mail-archive.com/freebsd-current@freebsd.org/msg23642.html