From owner-freebsd-current@FreeBSD.ORG Sat Jul 19 22:52:06 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 05C72106566B for ; Sat, 19 Jul 2008 22:52:06 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from igloo.linux.gr (igloo.linux.gr [62.1.205.36]) by mx1.freebsd.org (Postfix) with ESMTP id 825788FC18 for ; Sat, 19 Jul 2008 22:52:05 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from kobe.laptop (adsl133-207.kln.forthnet.gr [77.49.252.207]) (authenticated bits=128) by igloo.linux.gr (8.14.3/8.14.3/Debian-4) with ESMTP id m6JMpXPG026696 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sun, 20 Jul 2008 01:51:40 +0300 Received: from kobe.laptop (kobe.laptop [127.0.0.1]) by kobe.laptop (8.14.2/8.14.2) with ESMTP id m6JMpXwn002114; Sun, 20 Jul 2008 01:51:33 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) Received: (from keramida@localhost) by kobe.laptop (8.14.2/8.14.2/Submit) id m6JMpWD7002113; Sun, 20 Jul 2008 01:51:32 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) From: Giorgos Keramidas To: "Alexandre \"Sunny\" Kovalenko" References: <87prpcjrsk.fsf@kobe.laptop> <1216501388.971.6.camel@RabbitsDen> <87mykd5wsl.fsf@kobe.laptop> Date: Sun, 20 Jul 2008 01:51:32 +0300 In-Reply-To: <87mykd5wsl.fsf@kobe.laptop> (Giorgos Keramidas's message of "Sun, 20 Jul 2008 01:33:30 +0300") Message-ID: <87tzelebd7.fsf@kobe.laptop> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-MailScanner-ID: m6JMpXPG026696 X-Hellug-MailScanner: Found to be clean X-Hellug-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-3.786, required 5, autolearn=not spam, ALL_TRUSTED -1.80, AWL 0.61, BAYES_00 -2.60) X-Hellug-MailScanner-From: keramida@ceid.upatras.gr X-Spam-Status: No Cc: freebsd-current@freebsd.org Subject: Re: Broken APIC on my laptop or bug in FreeBSD? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 Jul 2008 22:52:06 -0000 On Sun, 20 Jul 2008 01:33:30 +0300, Giorgos Keramidas wrote: > On Sat, 19 Jul 2008 17:03:08 -0400, "Alexandre \"Sunny\" Kovalenko" wrote: >> Are you by any chance using cx_lowest="C3" (or "LOW") in your >> rc.conf? I have seen these symptoms (including mouse inducement of >> the typed characters) when cpu0 on my laptop went to C3. Nowadays I >> have C3 on cpu1 and C2 on cpu0 and life is good. Then again, I am >> running RELENG_7 (which AFAICR was 7-CURRENT at the time), so YMMV. > > Ah, good point. I have indeed performance_cx_lowest="LOW" in rc.conf. > > I'll remove that and try again with the APIC enabled... That was it. Thanks! # sysctl -a | egrep -e 'cx_(usage|support)' dev.cpu.0.cx_supported: C1/1 C2/1 C3/57 dev.cpu.0.cx_usage: 100.00% 0.00% 0.00% dev.cpu.1.cx_supported: C1/1 C2/1 C3/57 dev.cpu.1.cx_usage: 100.00% 0.00% 0.00% With anything except "C1" the CPU is obviously too slow to do anything useful :-)