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Re: [Qemu-devel] kvm: virtio-net: saved image requires TUN_F_UFO support


From: Paolo Bonzini
Subject: Re: [Qemu-devel] kvm: virtio-net: saved image requires TUN_F_UFO support
Date: Wed, 8 Nov 2017 10:46:04 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0

On 08/11/2017 09:21, Jason Wang wrote:
> 
> 
> On 2017年11月08日 17:05, Stefan Priebe - Profihost AG wrote:
>> Am 08.11.2017 um 08:54 schrieb Jason Wang:
>>>
>>> On 2017年11月08日 15:41, Stefan Priebe - Profihost AG wrote:
>>>> Hi Paolo,
>>>>
>>>> Am 06.11.2017 um 12:27 schrieb Paolo Bonzini:
>>>>> On 06/11/2017 12:09, Stefan Priebe - Profihost AG wrote:
>>>>>> HI Paolo,
>>>>>>
>>>>>> could this patchset be related?
>>>>> Uh oh, yes it should.  Jason, any ways to fix it?  I suppose we
>>>>> need to
>>>>> disable UFO in the newest machine types, but do we also have to do
>>>>> (software) UFO in vhost-net and QEMU for migration compatibility?
>>>> Any news on this?
>>>>
>>>> Greets,
>>> Since we probe UFO support, it will be disabled automatically on device
>>> startup.
>>>
>>> For the issue of migration, I think the only way is trying to fix it in
>>> kernel.
>> But 4.14 is around the corner and the patchset is already included.
>> Shouldn't this get fixed before 4.14 is released?
> 
> We will try to seek a solution as soon as possible. If we can't catch
> 4.14, we will do it for stable for sure.

Jason, can you write to netdev and Cc Linus and me?

Thanks,

Paolo



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