Re: [qemu-devel] Bug Report: VM crashed for some kinds of vCPU in nested virtualization

2013-04-16 Thread Jan Kiszka
On 2013-04-16 12:19, 李春奇 wrote: > I looked up Intel manual for VM instruction error. Error number 7 means "VM > entry with invalid control field(s)", which means in process of VM > switching some control fields are not properly configured. > > I wonder why some emulated CPUs (e.g.Nehalem) can run

Re: [qemu-devel] Bug Report: VM crashed for some kinds of vCPU in nested virtualization

2013-04-16 Thread Jan Kiszka
On 2013-04-16 05:49, 李春奇 wrote: > I changed to the latest version of kvm kernel but the bug also occured. > > On the startup of L1 VM on the host, the host kern.log will output: > Apr 16 11:28:22 Blade1-02 kernel: [ 4908.458090] kvm [2808]: vcpu0 > unhandled rdmsr: 0x345 > Apr 16 11:28:22 Blade1-

Re: [qemu-devel] Bug Report: VM crashed for some kinds of vCPU in nested virtualization

2013-04-15 Thread Jan Kiszka
On 2013-04-15 08:24, 李春奇 wrote: > Hi all, > In a nested virtualization environment of qemu+KVM, some emulated CPU (such > as core2duo) may cause L2 guest crash after booting for a while. Here's my > configuration: > > Host: > Linux 3.5.7 You should better use latest version from kvm.git [1], bra