From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756252Ab2ILIHt (ORCPT ); Wed, 12 Sep 2012 04:07:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33109 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754682Ab2ILIGz (ORCPT ); Wed, 12 Sep 2012 04:06:55 -0400 Message-ID: <50504299.2050205@redhat.com> Date: Wed, 12 Sep 2012 11:06:49 +0300 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120828 Thunderbird/15.0 MIME-Version: 1.0 To: Jiri Slaby CC: Marcelo Tosatti , kvm@vger.kernel.org, LKML , Jiri Slaby Subject: Re: qemu-kvm loops after kernel udpate References: <504F7ED8.1030702@suse.cz> <20120911190303.GA3626@amt.cnet> <504F93F1.2060005@suse.cz> In-Reply-To: <504F93F1.2060005@suse.cz> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/11/2012 10:41 PM, Jiri Slaby wrote: > On 09/11/2012 09:03 PM, Marcelo Tosatti wrote: >> On Tue, Sep 11, 2012 at 08:11:36PM +0200, Jiri Slaby wrote: >>> Hi, >>> >>> it looks like an update from next-20120824 to next-20120910 makes kvm >>> defunct. When I try to run qemu, it loops forever without printing >>> anything on the monitor. >>> >>> -no-kvm makes it indeed work. >>> >>> Cmdline I use: >>> qemu-kvm -k en-us -usbdevice tablet -balloon virtio -hda IMAGE -smp 2 -m >>> 1000M -net user -net nic,model=e1000 -usb -serial pty >>> >>> Before I start investigating further, like biscection, is this a known >>> issue already and fix available somewhere? >> >> Its not a known issue. 'info registers' (for both vcpus) and >> 'x /20i $eip' might help track it down. > > I don't think it's in a state with something loaded. > > (qemu) cpu 0 > (qemu) info registers > EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000623 > ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000 > EIP=0000fff0 EFL=00010002 [-------] CPL=3 II=0 A20=1 SMM=0 HLT=0 > ES =0000 00000000 0000ffff 00009300 > CS =f000 000f0000 0000ffff 0000f300 This is before the first instruction is executed. You're on an Intel host, yes? Please provide the output of vmxcap (http://goo.gl/c5lUO), and a snapshot of kvm_stat while the guest is hung. -- error compiling committee.c: too many arguments to function