From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 104271] Boot crashes on Lenovo W520 with KVM and Discrete Graphic enabled in BIOS Date: Fri, 11 Sep 2015 09:38:59 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.29.136]:45205 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750847AbbIKJjD (ORCPT ); Fri, 11 Sep 2015 05:39:03 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A26D2207C8 for ; Fri, 11 Sep 2015 09:39:01 +0000 (UTC) Received: from bugzilla1.web.kernel.org (bugzilla1.web.kernel.org [172.20.200.51]) by mail.kernel.org (Postfix) with ESMTP id 58932207B3 for ; Fri, 11 Sep 2015 09:38:59 +0000 (UTC) In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: https://bugzilla.kernel.org/show_bug.cgi?id=104271 Hans Streibel changed: What |Removed |Added ---------------------------------------------------------------------------- Component|kvm |PCI Version|unspecified |2.5 Product|Virtualization |Drivers --- Comment #5 from Hans Streibel --- Ok, will move it to Drivers/PCI. Output of lspci -vvv now is in the appendix. Output of dmesg is not included because that only shows output of a successfully booted kernel. I even installed bootlogd but its log file does not show error messages. I made some pictures with my camera but I do not dare to attach those somewhat big jpg files here. But if you really need them I can attach them. The trouble starts (most of the time) right behind the line: shpchp: Standard Hot Plug PCI Controller Driver Version: 0.4 Yes, disabling VT-d did help. Booting succeeded again. Using "iommu=pt" however did not help. Same symptoms. BTW, I wanted to express that my special notebook is not broken. Not more broken that all (many/most) of the others W520s around. -- You are receiving this mail because: You are watching the assignee of the bug.