From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965378AbXCUWYV (ORCPT ); Wed, 21 Mar 2007 18:24:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965384AbXCUWYV (ORCPT ); Wed, 21 Mar 2007 18:24:21 -0400 Received: from e31.co.us.ibm.com ([32.97.110.149]:58773 "EHLO e31.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965378AbXCUWYT (ORCPT ); Wed, 21 Mar 2007 18:24:19 -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 In-Reply-To: <20070321220038.5D962DBA1@gherkin.frus.com> References: <20070321220038.5D962DBA1@gherkin.frus.com> Content-Type: text/plain Date: Wed, 21 Mar 2007 15:24:12 -0700 Message-Id: <1174515853.5477.18.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 Wed, 2007-03-21 at 16:00 -0600, Bob Tracy wrote: > john stultz wrote: > > Hmmm. Are you able to capture a full dmesg? > > For the "it hangs" case, short of either trying to boot with the > console I/O redirected to a serial port or hooking up a printer to > the console and scanning in the resulting output, I don't think so. > There's too much output prior to the hang point to make manual > transcription feasible. Hmm. You could give netconsole a try(see Documentation/networking/netconsole.txt), although if the hang is before that inits you might be out of luck. > > Also, does booting w/ "clocksource=jiffies" change the behavior? > > I'll build a post-"bad"-commit kernel later this evening and let you > know. Unfortunately, real life has to intrude for a few hours :-). No problem. When you can get to it. :) Also trying booting w/ "notsc" would be a useful data point. > If specifying the clocksource allows for a normal bootup, would you > like to see the corresponding dmesg output? No, although a pre-bad-commit dmesg would help. thanks -john