From owner-freebsd-acpi@FreeBSD.ORG Tue Dec 28 23:20:11 2004 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C5DD216A4CE; Tue, 28 Dec 2004 23:20:11 +0000 (GMT) Received: from acampi.inet.it (acampi.inet.it [213.92.1.165]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8418F43D31; Tue, 28 Dec 2004 23:20:11 +0000 (GMT) (envelope-from andrea@acampi.inet.it) Received: by acampi.inet.it (Postfix, from userid 1000) id 103E9A7; Wed, 29 Dec 2004 00:20:10 +0100 (CET) Date: Wed, 29 Dec 2004 00:20:10 +0100 From: Andrea Campi To: John Baldwin Message-ID: <20041228232009.GC90171@webcom.it> References: <20041223145047.GA1064@webcom.it> <41D0931F.2010200@root.org> <200412281027.58052.jhb@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200412281027.58052.jhb@FreeBSD.org> User-Agent: Mutt/1.5.6i cc: freebsd-acpi@FreeBSD.org Subject: Re: S3 experience on Thinkpad 570E X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Dec 2004 23:20:11 -0000 On Tue, Dec 28, 2004 at 10:27:57AM -0500, John Baldwin wrote: > > > In a nutshell, acpiconf -s3 powers down; on powerup however the machine > > > is deadly slow. I replicated this with a stripped down kernel; the only > > > thing that was evidently wrong is that the clock slowed down from 1000 to > > > around 250 interrupts per second. > > > > It sounds like the clock interrupt source is not getting saved/restored > > properly if it slows after a resume. I am not sure how to solve this. > > Perhaps John has something to add. > > Currently on i386 the clocks are not real new-bus devices and I'm not sure if > they have proper resume support. I think we do have some sort of hardcoded > call to the clock code on i386 to resume the clocks but I'm not sure. OK, thanks. Just for completeness, I'll check and report what happens with a different value of HZ (100, for instance ;-)), just in case this makes any difference--as I would expect if this is a case of resuming to some hardcoded value. Bye, Andrea -- The dark ages were caused by the Y1K problem.