From owner-freebsd-acpi@FreeBSD.ORG Mon Aug 21 05:51:03 2006 Return-Path: X-Original-To: freebsd-acpi@freebsd.org 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 8B73216A4DE; Mon, 21 Aug 2006 05:51:03 +0000 (UTC) (envelope-from nate@root.org) Received: from ylpvm29.prodigy.net (ylpvm29-ext.prodigy.net [207.115.57.60]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2F2B143D67; Mon, 21 Aug 2006 05:51:03 +0000 (GMT) (envelope-from nate@root.org) X-ORBL: [71.139.46.150] Received: from [10.0.5.51] (ppp-71-139-46-150.dsl.snfc21.pacbell.net [71.139.46.150]) by ylpvm29.prodigy.net (8.13.7 out spool5000 dk/8.13.7) with ESMTP id k7L5otU1032036; Mon, 21 Aug 2006 01:50:56 -0400 Message-ID: <44E949A8.2010307@root.org> Date: Sun, 20 Aug 2006 22:50:32 -0700 From: Nate Lawson User-Agent: Thunderbird 1.5.0.2 (X11/20060501) MIME-Version: 1.0 To: Boris Samorodov References: <20060820110545.GG1066@turion.vk2pj.dyndns.org> <94951745@bsam.ru> In-Reply-To: <94951745@bsam.ru> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Peter Jeremy , freebsd-acpi@freebsd.org, Gleb Smirnov Subject: Re: Powerd makes computer hang X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Aug 2006 05:51:03 -0000 Boris Samorodov wrote: > On Sun, 20 Aug 2006 21:05:45 +1000 Peter Jeremy wrote: >> On Sun, 2006-Aug-20 16:00:33 +1000, Tim Dettloff wrote: > >>> I have installed FreeBSD 6.1-RELEASE on my Compaq Presario 2656AU >>> laptop, but it occasionally hangs. I traced the problem to powerd so I >>> made a script that kept changing the clock rate by setting the sysctl >>> dev.cpu.0.freq. This script normally makes the computer hang within 10 >>> seconds or so. > >> Sam Leffler noticed this on his nx6125 last December and I also >> found the same problem on my nx6125 in early February. It looks >> like there's a race condition in the BIOS code. > >>> Any Ideas? > >> My current solution is to manually change the speed using sysctl. >> This doesn't seem to trigger the problem quite as often (though your >> laptop seems far more sensitive than mine). I would also be interested >> in any real solutions. > > Glebius@ (CCed) sent me a patch against 6-STABLE which solves the > problem. However, I don't know if the patch was committed. > > > WBR Um, could you post it to the list? -- Nate