From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: kernel backtrace pointing at KVM Date: Mon, 22 Jun 2009 11:52:39 +0300 Message-ID: <4A3F4657.5090002@redhat.com> References: <4A3C815A.9010706@sofiacom.bg> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Ivelin Ivanov Return-path: Received: from mx2.redhat.com ([66.187.237.31]:44686 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753593AbZFVIwA (ORCPT ); Mon, 22 Jun 2009 04:52:00 -0400 In-Reply-To: <4A3C815A.9010706@sofiacom.bg> Sender: kvm-owner@vger.kernel.org List-ID: On 06/20/2009 09:27 AM, Ivelin Ivanov wrote: > WARNING: at arch/x86/kvm/x86.c:204 kvm_queue_exception_e+0x24/0x45 [kvm]() > Call Trace: > [] warn_slowpath_common+0x60/0x90 > [] warn_slowpath_null+0xd/0x10 > [] kvm_queue_exception_e+0x24/0x45 [kvm] > [] kvm_task_switch+0xfb/0xada [kvm] > [] ? _spin_unlock+0xf/0x23 > [] ? kvm_mmu_page_fault+0x16/0x75 [kvm] > [] handle_task_switch+0x6d/0x96 [kvm_intel] > [] kvm_handle_exit+0x1c3/0x1e0 [kvm_intel] > [] kvm_arch_vcpu_ioctl_run+0x89d/0xab6 [kvm] > [] ? do_sync_readv_writev+0xa1/0xdf > [] kvm_vcpu_ioctl+0xec/0x602 [kvm] > [] ? _spin_unlock+0xf/0x23 > [] ? kvm_vcpu_ioctl+0x0/0x602 [kvm] > [] vfs_ioctl+0x22/0x69 > [] do_vfs_ioctl+0x439/0x472 > [] ? unmap_region+0x10a/0x124 > [] ? fget_light+0x8a/0xb1 > [] sys_ioctl+0x40/0x5a > [] sysenter_do_call+0x12/0x28 > ---[ end trace 9cc5a56b9c7eda31 ]--- > > Here is some more info: > # uname -a > Linux pc187 2.6.30-9-pae #1 SMP PREEMPT Wed Jun 17 15:29:59 EEST 2009 > i686 i686 i386 GNU/Linux > # qemu-system-x86_64 --version > QEMU PC emulator version 0.10.50 (qemu-kvm-devel-86), Copyright (c) > 2003-2008 Fabrice Bellard > # modinfo /lib/modules/2.6.30-9-pae/kernel/arch/x86/kvm/kvm.ko > filename: /lib/modules/2.6.30-9-pae/kernel/arch/x86/kvm/kvm.ko > license: GPL > author: Qumranet > srcversion: 934CD9DB264501B0431438A > depends: > vermagic: 2.6.30-9-pae SMP preempt mod_unload modversions CORE2 > parm: oos_shadow:bool > parm: msi2intx:bool > > Do I do something wrong or is it a bug in KVM ? > It's a bug in kvm. Is there anything in the Windows logs from the time of the reboot? Did Windows create a memory dump? -- error compiling committee.c: too many arguments to function