From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [BUG] kvm: guest can not startup due to triple fault Date: Sun, 17 Oct 2010 11:34:58 +0200 Message-ID: <4CBAC342.1010609@redhat.com> References: <20101017085416.GA1758@darkstar> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org To: Dave Young Return-path: In-Reply-To: <20101017085416.GA1758@darkstar> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 10/17/2010 10:54 AM, Dave Young wrote: > 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? Please provide a trace (trace-cmd record -e kvm) leading to the failure. -- error compiling committee.c: too many arguments to function