From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41330) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VEe9s-0004n5-0U for qemu-devel@nongnu.org; Wed, 28 Aug 2013 07:43:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VEe9m-0001M5-MS for qemu-devel@nongnu.org; Wed, 28 Aug 2013 07:43:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:36732) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VEe9m-0001Ls-EQ for qemu-devel@nongnu.org; Wed, 28 Aug 2013 07:43:26 -0400 Message-ID: <521DE2EB.9050404@redhat.com> Date: Wed, 28 Aug 2013 13:45:47 +0200 From: Laszlo Ersek MIME-Version: 1.0 References: <20130828103552.GC2038@GaryOffice.site> In-Reply-To: <20130828103552.GC2038@GaryOffice.site> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [edk2] OVMF hung on qemu 1.6.0 with KVM List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gary Ching-Pang Lin Cc: edk2-devel@lists.sourceforge.net, "qemu-devel@nongnu.org" (qemu-devel CC'd) On 08/28/13 12:35, Gary Ching-Pang Lin wrote: > Hi, > > I recently updated qemu to 1.6.0 and found OVMF just showed a blank > screen when kvm was enabled. I tried to dump OVMF log with the > following commond but nothing was stored in debug.log. > > qemu-system-x86_64 -s -enable-kvm -bios OVMF.fd -debugcon file:debug.log -global isa-debugcon.iobase=0x402 > > The kvm trace was recorded with "trace-cmd record -b 20000 -e kvm" > and uploaded to the following link: > https://docs.google.com/file/d/0B9hbtlc_aK_gcGh2TDZLUVlzWWc/edit?usp=sharing > > I found a similar case with kernel < 3.9, but I already upgraded linux > kernel to 3.10.5, so this may be another bug. Well, the usual first response in cases like this is... Can you bisect qemu? :) Laszlo