From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yang Zhang Subject: Re: X58 Virtualization w/ Linux Date: Mon, 27 Jun 2016 10:21:32 +0800 Message-ID: References: <03f27bbf-f8ad-b377-c194-adaefe808077@stevenovakov.com> <2884c8b8-9ad3-cba7-d9ba-b94946775087@gmail.com> <0cc56e39-829c-144d-5e30-7d5505fe896a@stevenovakov.com> <3b5e8af3-c0da-8fab-8f40-05fa27ef2866@stevenovakov.com> <6c76b555-f9af-d651-d5e2-490cf899ee93@stevenovakov.com> <9a909eb1-23ef-f29f-a332-359fa842afd4@gmail.com> <97e6a96d-4139-2469-a8c9-f79df48727a6@stevenovakov.com> <508a9e58-1247-36b0-5baa-a49e986c1bf6@stevenovakov.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit To: Steve Novakov , Paolo Bonzini , kvm@vger.kernel.org Return-path: Received: from mail-oi0-f42.google.com ([209.85.218.42]:33152 "EHLO mail-oi0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751729AbcF0CVw (ORCPT ); Sun, 26 Jun 2016 22:21:52 -0400 Received: by mail-oi0-f42.google.com with SMTP id u201so183002664oie.0 for ; Sun, 26 Jun 2016 19:21:52 -0700 (PDT) In-Reply-To: <508a9e58-1247-36b0-5baa-a49e986c1bf6@stevenovakov.com> Sender: kvm-owner@vger.kernel.org List-ID: On 2016/6/21 9:24, Steve Novakov wrote: >>There is no error message from the dmesg. But there do have lots of > additional devices on your board. Do you see any error when booting > fail? Does system stuck while enabling a device? > > > All I see now is a completely blank screen right after the grub screen > (with BIOS VT-d on, and with intel_iommu=on..etc boot options). There > seems to be no logging happening (syslog has no entries for these boots). > > The blank screen persists and there is no response from any inputs. I > waited 3-5 minutes and then rebooted manually. You may need to config the serial port to get the boot message. Without enough message, it's hard to tell what is wrong. Alternatively, you can remove all additional devices to see whether system can boot. -- best regards yang