From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: Re: qemu-kvm-0.12.2 hangs when booting grub, when kvm is disabled Date: Thu, 18 Feb 2010 13:01:37 +0100 Message-ID: <4B7D2C21.7080900@siemens.com> References: <4B73C1C1.7010509@telecom-lille1.eu> <4B7D2557.6040705@siemens.com> <20100218115915.GL14767@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Jacques Landru , "kvm@vger.kernel.org" To: Gleb Natapov Return-path: Received: from thoth.sbs.de ([192.35.17.2]:21505 "EHLO thoth.sbs.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757775Ab0BRMCD (ORCPT ); Thu, 18 Feb 2010 07:02:03 -0500 In-Reply-To: <20100218115915.GL14767@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Gleb Natapov wrote: > On Thu, Feb 18, 2010 at 12:32:39PM +0100, Jan Kiszka wrote: >> Jacques Landru wrote: >>> Hi, >>> >>> Same problem here >>> >>> qemu-kvm-0.12.x hangs if I have at the same time "-no-kvm" and >>> "file=essai-slitaz.raw,if=ide,index=0,boot=on" sometime with the >>> message below >>> >>> but >>> >>> qemu-kvm with "-no-kvm" and without "boot=on" option for the file >>> parameter, works >>> qemu-kvm with "boot=on" option and kvm enable works. (kvm-kmod is 2.6.32.7) >> I have to confirm this issue: Something badly crashes here as well, >> either grub or the extboot ROM or Seabios. >> >> Does anyone has a good idea what makes the difference here, ie. where to >> start debugging? >> > May be TCG interprets something incorrectly in extboot.bin. Sounds > unlikely, but symptoms look like this is the case. Yes, maybe. I'm currently building a debug version that has support for TCG block tracing enabled. Should get us closer to the crash. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux