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Date: Wed, 20 Aug 2014 17:23:21 +0800
From: "Zhangjie (HZ)" <zhangjie14@huawei.com>
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Subject: Re: [Qemu-devel] [PATCH V3] vhost_net: start/stop guest notifiers
	properly
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To: Jason Wang <jasowang@redhat.com>, qemu-devel@nongnu.org, mst@redhat.com
Cc: William Dauchy <wdauchy@gmail.com>

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