Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751045AbWKBRjm (ORCPT ); Thu, 2 Nov 2006 12:39:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751111AbWKBRjm (ORCPT ); Thu, 2 Nov 2006 12:39:42 -0500 Received: from smtpauth03.prod.mesa1.secureserver.net ([64.202.165.183]:2516 "HELO smtpauth03.prod.mesa1.secureserver.net") by vger.kernel.org with SMTP id S1751045AbWKBRjl (ORCPT ); Thu, 2 Nov 2006 12:39:41 -0500 Message-ID: <454A2D54.4060901@seclark.us> Date: Thu, 02 Nov 2006 12:39:32 -0500 From: Stephen Clark Reply-To: Stephen.Clark@seclark.us User-Agent: Mozilla/5.0 (X11; U; Linux 2.2.16-22smp i686; en-US; m18) Gecko/20010110 Netscape6/6.5 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Sergio Monteiro Basto CC: Dave Jones , Alexey Dobriyan , linux-kernel Subject: Re: fc6 kernel 2.6.18-1.2798 breaks acpi on HP laptop n5430 References: <4548DDF4.2030903@seclark.us> <20061101201218.GA4899@martell.zuzino.mipt.ru> <45490EFE.1060608@seclark.us> <20061101235546.GB10577@redhat.com> <4549450F.3080207@seclark.us> <20061102030353.GA2797@redhat.com> <1162441409.7677.23.camel@monteirov> <454A0352.8010207@seclark.us> <1162478860.12936.6.camel@localhost.localdomain> In-Reply-To: <1162478860.12936.6.camel@localhost.localdomain> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2510 Lines: 89 Sergio Monteiro Basto wrote: >On Thu, 2006-11-02 at 09:40 -0500, Stephen Clark wrote: > > >>Sergio Monteiro Basto wrote: >> >> >> >>>On Wed, 2006-11-01 at 22:03 -0500, Dave Jones wrote: >>> >>> >>> >>> >>>>On Wed, Nov 01, 2006 at 08:08:31PM -0500, Stephen Clark wrote: >>>> >>>> >>>> >>>>>booting without lapic allowed it to boot but now I get >>>>>... >>>>>Local APIC disabled by BIOS -- you can enable it with "lapic" >>>>>... >>>>>Local APIC not detected. Using dummy APIC emulation. >>>>> which means more processor overhead - right? >>>>> >>>>>also cpuspeed doesn't work anymore - I don't have a cpufreq dir >>>>> >>>>> >>>>The Duron had powernow ? >>>> >>>> >>>> >>>> >>>This story of trying enable lapic when BIOS don't, has been triggered on >>>kernel2.6.18, but in my opinion is not a bug if lapic on those computers >>>don't work. >>> >>>If you boot without enable lapic, you will see cat /proc/interrupts with >>>interrupts in XT-PIC. >>>if you try enable lapic, somehow IRQ routing should change >>>and if /proc/interrupts still the same, with IRQs in XT-PIC. >>>I think, lapic still not enabled and the most you can get it's problems. >>>Unless you know that lapic works (it is programmed and BIOS wrongly >>>disable it), you shouldn't try enable lapic because it is probable that >>>just give problems, to you. >>>Historically: In 2002/3 was a very common bug, when kernel was compiled >>>to support lapic and try enable lapic (even when BIOS don't) and >>>computer hangs on boot. >>> >>> >>> >>> >>Loading the correct kernel arch 686 - fixes my powernow problems - this >>is a mobile duron. >> >>Booting with lapic worked fine on fc5 kernel-2.6.18-2200 but it causes >>fc6 kernel-2.6.18-2798 >>to hang. >> >> > >With lapic boot option enabled, have you a different /proc/interrupts ? >have you lapic working ? > > > > > No interrupt assignments are the same - but what about the hi-res timer the lapic is supposed to have and linux is suppose to use? Steve -- "They that give up essential liberty to obtain temporary safety, deserve neither liberty nor safety." (Ben Franklin) "The course of history shows that as a government grows, liberty decreases." (Thomas Jefferson) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/