From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753404AbYICIzN (ORCPT ); Wed, 3 Sep 2008 04:55:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751340AbYICIzA (ORCPT ); Wed, 3 Sep 2008 04:55:00 -0400 Received: from rv-out-0506.google.com ([209.85.198.233]:37291 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751271AbYICIzA (ORCPT ); Wed, 3 Sep 2008 04:55:00 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=XuS7ml/IJchaDn3OoUzjUcDV2W2B48JavmsAfNi4ltjqw8Dx24JeeCYkioxoCgV8EF UXnnEm6TdpBUYP5rgONn/3KAWcBlnVkC1qRXxLdLCb92cK9yHOEz40dJrSGWGp+vxfdv 6w/g4XKp7aweZl/fAbHI/t1QSQ1B1X/mAgEAw= Message-ID: <68676e00809030154i7470b08o770198bbefe00924@mail.gmail.com> Date: Wed, 3 Sep 2008 10:54:59 +0200 From: "Luca Tettamanti" To: "Peter Zijlstra" Subject: Re: [2.6.27] early exception - lockdep related? Cc: linux-kernel@vger.kernel.org, mingo@redhat.com In-Reply-To: <1220431061.8609.87.camel@twins> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080902210646.GA10925@dreamland.darkstar.lan> <1220424721.8609.74.camel@twins> <68676e00809030128o45820023n6f270847e14af2a3@mail.gmail.com> <1220431061.8609.87.camel@twins> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 3, 2008 at 10:37 AM, Peter Zijlstra wrote: > On Wed, 2008-09-03 at 10:28 +0200, Luca Tettamanti wrote: >> On Wed, Sep 3, 2008 at 8:52 AM, Peter Zijlstra wrote: >> > On Tue, 2008-09-02 at 23:06 +0200, Luca Tettamanti wrote: >> >> Hello, >> >> I'm seeing an early exception (0e) - which seems related to lockdep - at >> >> boot with many 2.6.27 kernels and I'm having troubles to track it down. >> > >> > Does it print one of these nice stack traces? >> >> Of course not ;-) It dies before dumping the stack trace (or at least >> it doesn't make to the console - that machine has a serial port, but >> my notebook does not... I've ordered a usb-to-serial adapter). > > Until it arrives, you could try poking at netconsole.. Hum, I forgot to mention that it dies very early, just after: Kernel is alive Kernel is really alive Is netconsole already up at that point? Luca