Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754819AbZCTIhh (ORCPT ); Fri, 20 Mar 2009 04:37:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754080AbZCTIh0 (ORCPT ); Fri, 20 Mar 2009 04:37:26 -0400 Received: from mga12.intel.com ([143.182.124.36]:62683 "EHLO azsmga102.ch.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754036AbZCTIhZ (ORCPT ); Fri, 20 Mar 2009 04:37:25 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.38,394,1233561600"; d="scan'208";a="122327823" Message-ID: <49C355CF.1040409@linux.intel.com> Date: Fri, 20 Mar 2009 09:37:35 +0100 From: Andi Kleen User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) MIME-Version: 1.0 To: "Metzger, Markus T" CC: Ingo Molnar , "linux-kernel@vger.kernel.org" , "tglx@linutronix.de" , "hpa@zytor.com" , "markus.t.metzger@gmail.com" , "roland@redhat.com" , "eranian@googlemail.com" , "oleg@redhat.com" , "Villacis, Juan" , "ak@linux.jf.intel.com" Subject: Re: [patch] x86, bts: use atomic memory allocation References: <20090318192700.A6038@sedona.ch.intel.com> <20090319161141.GA12144@elte.hu> <928CFBE8E7CB0040959E56B4EA41A77E923FFCA4@irsmsx504.ger.corp.intel.com> In-Reply-To: <928CFBE8E7CB0040959E56B4EA41A77E923FFCA4@irsmsx504.ger.corp.intel.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 994 Lines: 21 > > When I boot that configuration (without the additional patches), I get some > error dumps on the screen including a call trace. Unfortunately, the interesting > part scrolls out of the top of my screen and the boot stops. Standard ways to handle that: - boot with vga=0x0f07 to get smaller fonts (if it doesn't work use vga=ask and select suitable number) - use a serial console, possibly with earlyprintk - use firescope if the system has a ieee1394 connection. That can access the log buffer. You need a 1394 cable, but those are easy to get. See Documentation/debugging-via-ohci1394.txt For this particular case it might be enough to move the selftest to run much later and then use netconsole or similar after it has been set up. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/