From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934208AbXCVT4t (ORCPT ); Thu, 22 Mar 2007 15:56:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934213AbXCVT4t (ORCPT ); Thu, 22 Mar 2007 15:56:49 -0400 Received: from e2.ny.us.ibm.com ([32.97.182.142]:44166 "EHLO e2.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934208AbXCVT4s (ORCPT ); Thu, 22 Mar 2007 15:56:48 -0400 Subject: Re: [BUG] no boot with 2.6.21-rc3 and later From: john stultz To: Bob Tracy Cc: Bartlomiej Zolnierkiewicz , linux-kernel@vger.kernel.org, bunk@stusta.de, jikos@jikos.cz, Thomas Gleixner In-Reply-To: <20070322193946.2B7D8DBA1@gherkin.frus.com> References: <20070322193946.2B7D8DBA1@gherkin.frus.com> Content-Type: text/plain Date: Thu, 22 Mar 2007 12:56:42 -0700 Message-Id: <1174593402.5662.10.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.8.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2007-03-22 at 13:39 -0600, Bob Tracy wrote: > john stultz wrote: > > On Thu, 2007-03-22 at 13:14 -0600, Bob Tracy wrote: > > > john stultz wrote: > > > > Try this patch and let me know if it does the right thing. > > > > > > Will do. I'll report back in a few hours. > > > > > > > Although I do > > > > still need to dig a bit on the PIT hang issue. > > > > > > Any chance this might be related to the APIC issues currently being > > > discussed in other threads? > > > > Hmmm. Good thought, I'll have to look into it. It could be that if the > > PIT is disabled in favor of the local apic, we'll have to make sure its > > not being used as a clocksource. > > According to the dmesg output, the local apic is disabled in the BIOS on > this system, and I'm not booting with "lapic" to enable it. > > Anyway, the "few hours" turned out to be more like a few minutes :-). > The patch worked as far as selecting/installing the acpi_pm clocksource > instead of the pit clocksource, and there was no hang during boot. If > you would like to see the dmesg output, let me know and I'll forward it > to you in a separate message. Great to hear! Please do send me the dmesg output so I can look to narrow down what's happening w/ the PIT. I'll also go ahead and push that acpi_pm change to akpm. thanks -john