From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757118AbcJNA6Q (ORCPT ); Thu, 13 Oct 2016 20:58:16 -0400 Received: from mga01.intel.com ([192.55.52.88]:65465 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754475AbcJNA6J (ORCPT ); Thu, 13 Oct 2016 20:58:09 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,490,1473145200"; d="scan'208";a="19489782" Date: Fri, 14 Oct 2016 08:53:06 +0800 From: Ye Xiaolong To: Andi Kleen Cc: lkp@01.org, hmh@hmh.eng.br, linux-kernel@vger.kernel.org, x86@kernel.org Subject: Re: [x86] 811565123a: BUG: kernel hang in early-boot stage, last printk: Probing EDD (edd=off to disable)... ok Message-ID: <20161014005305.GB13114@yexl-desktop> References: <57ef269a.XbyeTJaMf4hvWm9O%xiaolong.ye@intel.com> <20161003212828.GK5871@two.firstfloor.org> <87vawwc7io.fsf@tassilo.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87vawwc7io.fsf@tassilo.jf.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/13, Andi Kleen wrote: >Andi Kleen writes: > >Any comments on this? > >I still cannot reproduce the failure unfortunately. > Btw, you can try below commands to reproduce the error on your local host, they will download the necessary images and run QEMU: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp qemu -k KERNEL job-script # job-script is attached in the original report email Thanks, Xiaolong > >> Could you do two tests for me: >> >> - Enable CONFIG_MICROCODE_INTEL and see if it boots then >> >> - Add CONFIG_DEBUG_INFO to the config. >> Add -s to the qemu command line and boot again. Then when it hangs >> connect gdb to see where it hangs >> >> gdb -ex "target remote localhost:1234" vmlinux >> bt >> >>