From mboxrd@z Thu Jan 1 00:00:00 1970 From: lists_acpi Subject: Re: Hardlock during boot on Supermicro C2SBA BIOS v1.1 Date: Mon, 07 Apr 2008 16:24:16 +0100 Message-ID: <47FA3CA0.4080400@bigpizza.co.uk> References: <47F9DE3F.1050702@bigpizza.co.uk> <1207578108.4700.82.camel@queen.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from 78-105-172-173.zone3.bethere.co.uk ([78.105.172.173]:54229 "EHLO debian.bigpizza.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751804AbYDGPYu (ORCPT ); Mon, 7 Apr 2008 11:24:50 -0400 Received: from [192.168.0.10] (unknown [192.168.0.10]) by debian.bigpizza.co.uk (Postfix) with ESMTP id 132C82F06F for ; Mon, 7 Apr 2008 17:57:32 +0100 (BST) In-Reply-To: <1207578108.4700.82.camel@queen.suse.de> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Thomas Renninger wrote: > On Mon, 2008-04-07 at 09:41 +0100, lists_acpi wrote: > >> Hello all, >> >> I recently upgraded the BIOS to v1.1 on my Supermicro C2SBA and found >> that the system would hardlock on boot. The last message printed on the >> screen was: >> >> tbxface-0587 [00] tb_load_namespace : ACPI Tables successfully acquired >> > >From another machine with 2.6.22 kernel: > tbxface-0587 [00] tb_load_namespace : ACPI Tables successfully acquired > evxfevnt-0091 [00] enable : Transition to ACPI mode successful > If your machine really freezes when switching to ACPI mode, I expect > something goes wrong in the depth of SMM BIOS operations? > Not much one can do from OS then..., still maybe something below helps. > > >> which lead me to think the problem was caused by some changes to the >> ACPI tables in the new version of the BIOS. Booting the system with >> "acpi=off irqpoll" then allowed me to boot the system but the system >> would randomly drop off the network. >> > AFAIK it should still be possible to dump ACPI tables with acpidump? > > If yes, best is you do this with the working and the not working BIOS, > open a bug on bugzilla.kernel.org and attach both. > > What format should I use to create the acpi dumps? I know nothing of acpi tables so I don't know what information is useful to a developer. I tried "acpidump -o acpidump --binary" but was unable to disassemble it using iasl. I then tried "acpidump --t DSDT -o acpidump_dsdt --binary" and was able to disassemble it using iasl. > Maybe pci=noacpi or noapic also helps instead of switching off whole > acpi? > Can you switch off Cstate/C1E/processor deeper sleep states in the new > BIOS? Just a guess, maybe it's that? > > Thomas > > When I get a free window with the machine I'll get the ACPI dumps for as many BIOS versions as I can and see if I can change the sleep state with the newest BIOS. Thanks, Steve.