From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757312Ab0JQIyI (ORCPT ); Sun, 17 Oct 2010 04:54:08 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:38910 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756961Ab0JQIyG (ORCPT ); Sun, 17 Oct 2010 04:54:06 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:subject:message-id:mime-version:content-type :content-disposition:user-agent; b=bZreRXNF/OYUcK6ZzJIQlGXTnLeZE5NHIWuHt1eo1raoHAZkj1lcWxNLjtGjRzEA6C YDNIyICUQhTluuD/5b4z04yFzhF61QNC33wyvhnmo/ISVentCLy6RvBwhatMnCKsv0wV ynRQhvKHLix7N4bb3K8LVCWgajDQ+y0lZqSGU= Date: Sun, 17 Oct 2010 16:54:17 +0800 From: Dave Young To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [BUG] kvm: guest can not startup due to triple fault Message-ID: <20101017085416.GA1758@darkstar> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org linux guest can not startup normally, qemu keep rebooting. host & guest both use linux-2.6.36-rc8+ kernel Add a dump_stack in x86.c around EXIT_SHUTDOWN code, I got: [ 3924.503041] Pid: 1685, comm: qemu-system-x86 Not tainted 2.6.36-rc8+ #62 [ 3924.503045] Call Trace: [ 3924.503055] [] handle_triple_fault+0x11/0x26 [kvm_intel] [ 3924.503060] [] vmx_handle_exit+0x3df/0x474 [kvm_intel] [ 3924.503080] [] kvm_arch_vcpu_ioctl_run+0x95f/0xc43 [kvm] [ 3924.503087] [] ? __mutex_unlock_slowpath+0x11c/0x131 [ 3924.503101] [] ? kvm_arch_vcpu_load+0x90/0xe6 [kvm] [ 3924.503112] [] kvm_vcpu_ioctl+0x109/0x54a [kvm] [ 3924.503117] [] ? fire_user_return_notifiers+0x2c/0x36 [ 3924.503122] [] ? trace_hardirqs_on+0xd/0xf [ 3924.503127] [] ? do_notify_resume+0x717/0x73d [ 3924.503131] [] ? finish_task_switch+0x69/0xda [ 3924.503135] [] do_vfs_ioctl+0x4c3/0x50d [ 3924.503139] [] sys_ioctl+0x55/0x77 [ 3924.503142] [] system_call_fastpath+0x16/0x1b Anyone can help on this?