On 2014/8/19 12:56, Jason Wang wrote: > commit a9f98bb5ebe6fb1869321dcc58e72041ae626ad8 vhost: multiqueue call it before setting > Zhang Jie, please test this patch to see if it fixes the issue.
> +static void vhost_net_set_vq_index(struct vhost_net *net, int vq_index) > +{ > + net->dev.vq_index = vq_index; > +} int vq_index) > ... Because of vhost_net_set_vq_index, VM can be start successfully. But, after about 80 times of migration under my environment, virtual nic became unreachable again. When I use jprobe to notify tap, the virtual nic becomes reachable again. This shows that interrupts missing causes the problem. -- Best Wishes! Zhang Jie