From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756171AbZAJWxv (ORCPT ); Sat, 10 Jan 2009 17:53:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751778AbZAJWxl (ORCPT ); Sat, 10 Jan 2009 17:53:41 -0500 Received: from one.firstfloor.org ([213.235.205.2]:38189 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751441AbZAJWxk (ORCPT ); Sat, 10 Jan 2009 17:53:40 -0500 To: Hans de Bruin Cc: linux-kernel@vger.kernel.org Subject: Re: Kernelmessage to usbstick? From: Andi Kleen References: <4968F346.8060806@xs4all.nl> Date: Sat, 10 Jan 2009 23:53:15 +0100 In-Reply-To: <4968F346.8060806@xs4all.nl> (Hans de Bruin's message of "Sat, 10 Jan 2009 20:13:10 +0100") Message-ID: <873afqhixw.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hans de Bruin writes: > Would it be possible to send kernel messages to an usbstick? On > poweroff my laptop displays a kernel trace and a final message: > poweroff[3114] exited with preempt_count 2 > /etc/rc.d/rc.0: line 265: 3114 Segementation fault /sbin/poweroff. > I don't have a serial cable within reach, but plenty of usbsticks. There's a mtdoops.c indeed, but it currently only works on MTD controlled flash devices, not usb sticks. However usb sticks would need the USB subsystem to be running and it's unlikely that will be the case really late in poweroff. So it might not help. -Andi -- ak@linux.intel.com