From owner-freebsd-stable@FreeBSD.ORG Fri Nov 19 03:14:49 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A1ECA106566B; Fri, 19 Nov 2010 03:14:49 +0000 (UTC) (envelope-from smithi@nimnet.asn.au) Received: from sola.nimnet.asn.au (paqi.nimnet.asn.au [115.70.110.159]) by mx1.freebsd.org (Postfix) with ESMTP id EFCF28FC1B; Fri, 19 Nov 2010 03:14:48 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by sola.nimnet.asn.au (8.14.2/8.14.2) with ESMTP id oAJ3Ei6P007129; Fri, 19 Nov 2010 14:14:45 +1100 (EST) (envelope-from smithi@nimnet.asn.au) Date: Fri, 19 Nov 2010 14:14:44 +1100 (EST) From: Ian Smith To: John Baldwin In-Reply-To: <201011181711.05440.jhb@freebsd.org> Message-ID: <20101119135414.A39988@sola.nimnet.asn.au> References: <20101115045549.GB96011@johnny.reilly.home> <201011180759.39129.jhb@freebsd.org> <985E77DE-BFC9-4186-8493-36C63C62CE29@bigpond.net.au> <201011181711.05440.jhb@freebsd.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: "Alexandre \"Sunny\" Kovalenko" , freebsd-stable@freebsd.org Subject: Re: Console options for legacy-free mini-itx server? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Nov 2010 03:14:49 -0000 On Thu, 18 Nov 2010, John Baldwin wrote: > On Thursday, November 18, 2010 4:07:27 pm Andrew Reilly wrote: > > Hi John, > > > > On 18/11/2010, at 23:59 , John Baldwin wrote: > > > > > You used devinfo -v, so it shows the devices that exist even if they failed > > > to attach. Try just using 'devinfo' and seeing if est1 still shows up. > > > > OK, you're right: running without -v shows only est0: > > > > nexus0 > > apic0 > > ram0 > > acpi0 > > cpu0 > > acpi_perf0 ^^^^^^^^^^ > > est0 > > p4tcc0 > > cpufreq0 > > cpu1 > > p4tcc1 > > cpufreq1 > > acpi_button0 > > pcib0 > > <...> > > > > Is est. involved in the reboot question? > > Probably not. I'm not so sure, having just noticed something that I missed last time: device_attach: acpi_perf1 attach returned 6 est0: on cpu0 p4tcc0: on cpu0 device_attach: acpi_perf1 attach returned 6 est1: on cpu1 est: CPU supports Enhanced Speedstep, but is not recognized. est: cpu_vendor GenuineIntel, msr 16 device_attach: est1 attach returned 6 p4tcc1: on cpu1 I'd mis-read or assumed that first line as being for acpi_perf0, rather than an earlier? attempt to attach acpi_perf1 at that time. >From cpufreq(4): The following device drivers offer absolute frequency control via the cpufreq interface. Usually, only one of these can be active at a time. acpi_perf ACPI CPU performance states est Intel Enhanced SpeedStep ichss Intel SpeedStep for ICH powernow AMD PowerNow! for K7 and K8 smist Intel SMI-based SpeedStep for PIIX4 Apart from never having seen est0 attach but est1 not, my understanding from both the manual and from having read some of the code over the time is that acpi_perf0 should only attach if eg est0 didn't - is that wrong? Note also that there's no mention of acpi_perf0 attaching in the dmesg, where I'm used to seeing that listed (eg as with my P3-Mobile CPU) cheers, Ian