From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752955Ab1HZM3z (ORCPT ); Fri, 26 Aug 2011 08:29:55 -0400 Received: from arkanian.console-pimps.org ([212.110.184.194]:35878 "EHLO arkanian.console-pimps.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751393Ab1HZM3y (ORCPT ); Fri, 26 Aug 2011 08:29:54 -0400 Subject: Re: [PATCH 0/9] x86 EFI boot stub From: Matt Fleming To: Maarten Lankhorst Cc: linux-kernel@vger.kernel.org In-Reply-To: <4E441774.2040904@gmail.com> References: <1313060386-4858-1-git-send-email-matt@console-pimps.org> <4E43D3AE.70901@gmail.com> <1313075678.3436.69.camel@mfleming-mobl1.ger.corp.intel.com> <4E441774.2040904@gmail.com> Content-Type: text/plain; charset="UTF-8" Date: Fri, 26 Aug 2011 13:29:52 +0100 Message-ID: <1314361792.3577.5.camel@mfleming-mobl1.ger.corp.intel.com> Mime-Version: 1.0 X-Mailer: Evolution 2.32.2 (2.32.2-1.fc14) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2011-08-11 at 19:55 +0200, Maarten Lankhorst wrote: > > Hmm.. do you have early printk enabled? Can you hook up a serial console > > to this machine? > > > I get no output on serial console with vmlinuz.efi so it crashes > before 'early console in decompress_kernel' is printed. Hey Maarten, sorry I took so long to respond to this. OK, so you don't get any output on the serial console. Were you passing "console=" on the kernel cmdline? If so, the best way to debug this hang is to add, efi_call_phys4(sys_table->runtime->reset_system, EFI_RESET_COLD, EFI_SUCCESS, 0, NULL); just after we setup 'sys_table' in efi_main(). If your machine resets, then we at least know that the firmware loaded the bzImage correctly. P.S which machine is this and what is the output of the 'ver' command? -- Matt Fleming, Intel Open Source Technology Center