netdev - Re: Query: Is it possible to lose interrupts between vhost and virtio

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Message-ID: <53F18DBF.4090208@redhat.com>
Date:	Mon, 18 Aug 2014 13:23:11 +0800
From:	Jason Wang <jasowang@...hat.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
CC:	"Zhangjie (HZ)" <zhangjie14@...wei.com>, kvm@...r.kernel.org,
	netdev@...r.kernel.org, qinchuanyu@...wei.com,
	liuyongan@...wei.com, davem@...emloft.net
Subject: Re: Query: Is it possible  to lose interrupts between vhost and virtio_net
 during migration?

On 08/17/2014 06:22 PM, Michael S. Tsirkin wrote:
> On Fri, Aug 15, 2014 at 10:55:32AM +0800, Jason Wang wrote:
>>>>> I wonder if k->set_guest_notifiers should be called after "hdev->started = true;" in vhost_dev_start.
>>>> Michael, can we just remove those assertions? Since you may want to set
>>>> guest notifiers before starting the backend.
>>> Which assertions?
>> I mean assert(hdev->started) in vhost.c. Your patch may hit them.
> I don't follow, but since my patch doesn't help anyway, pls go ahead
> and post your idea in form of a patch, will be clearer and can
> be tested.

Ok, will post the patch.

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