From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762443AbXIXS53 (ORCPT ); Mon, 24 Sep 2007 14:57:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757345AbXIXS5V (ORCPT ); Mon, 24 Sep 2007 14:57:21 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:52824 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756941AbXIXS5V (ORCPT ); Mon, 24 Sep 2007 14:57:21 -0400 From: "Rafael J. Wysocki" To: Thomas Gleixner Subject: Re: 2.6.23-rc4-mm1 and -rc6-mm1: boot failure on HP nx6325, related to clockevents Date: Mon, 24 Sep 2007 21:11:06 +0200 User-Agent: KMail/1.9.5 Cc: Andi Kleen , Andrew Morton , LKML , Ingo Molnar References: <200709231257.12213.rjw@sisk.pl> <200709241718.23526.rjw@sisk.pl> <1190652380.4035.236.camel@chaos> In-Reply-To: <1190652380.4035.236.camel@chaos> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200709242111.07806.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday, 24 September 2007 18:46, Thomas Gleixner wrote: > On Mon, 2007-09-24 at 17:18 +0200, Rafael J. Wysocki wrote: > > > > Well, "noacpi" seems to be a synonym for "pci=noacpi". > > > > > > > > Anyway, it causes acpi_disable_pci() to be executed, which according to > > > > Documentation/kernel-parameters.txt means "Do not use ACPI for IRQ routing or > > > > for PCI scanning" (it works like this on x86_64 too, although the doc says it's > > > > x86_32-specific). > > > > > > Hrm. The local apic timer calibration does not use anything which is > > > related to interrupts, but if we use the local APIC timer we switch off > > > PIT. > > > > > > Can you boot Linus latest (w/o hrt patches) and add "apicmaintimer" to > > > the kernel command line please ? > > > > Works, dmesg attached. > > /me scratches head Retested. > We know, that > - disabling local apic timers work This works reproducibly accross the board. > - local apic timers (which turn off PIT) work. when noacpiFSCKEDPARSING This stopped working, although it evidently worked yesterday (wtf?). There seems to be a history effect in the box, to make things more "interesting". > is given on the kernel command line. > > I have no clue, what might be the difference of noacpiFSCKEDPARSING. The > boot log is not giving any hint at all. > > acpi_disable_pci() sets acpi_pci_disabled and acpi_noirq to 1. > > What happens, if you set "acpi=noirq" instead ? That obviously doesn't help. I think the only solid data point so far is that "noapictimer" makes the box boot. Greetings, Rafael