* [Qemu-devel] live migration fails after host kernel upgrade (3.12 => 3.18)
@ 2015-03-15 8:59 Stefan Priebe
2015-03-23 11:54 ` Stefan Hajnoczi
0 siblings, 1 reply; 3+ messages in thread
From: Stefan Priebe @ 2015-03-15 8:59 UTC (permalink / raw)
To: qemu-devel
Hi,
after upgrading the host kernel from 3.12 to 3.18 live migration fails
with the following qemu output (guest running on a host with 3.12 =>
host with 3.18):
kvm: Features 0x30afffe3 unsupported. Allowed features: 0x79bfbbe7
qemu: warning: error while loading state for instance 0x0 of device
'0000:00:12.0/virtio-net'
kvm: load of migration failed: Operation not permitted
But i can't
Greets,
Stefan
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] live migration fails after host kernel upgrade (3.12 => 3.18)
2015-03-15 8:59 [Qemu-devel] live migration fails after host kernel upgrade (3.12 => 3.18) Stefan Priebe
@ 2015-03-23 11:54 ` Stefan Hajnoczi
2015-03-23 12:16 ` Stefan Priebe - Profihost AG
0 siblings, 1 reply; 3+ messages in thread
From: Stefan Hajnoczi @ 2015-03-23 11:54 UTC (permalink / raw)
To: Stefan Priebe; +Cc: qemu-devel
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On Sun, Mar 15, 2015 at 09:59:25AM +0100, Stefan Priebe wrote:
> after upgrading the host kernel from 3.12 to 3.18 live migration fails with
> the following qemu output (guest running on a host with 3.12 => host with
> 3.18):
>
> kvm: Features 0x30afffe3 unsupported. Allowed features: 0x79bfbbe7
> qemu: warning: error while loading state for instance 0x0 of device
> '0000:00:12.0/virtio-net'
> kvm: load of migration failed: Operation not permitted
>
> But i can't
Hi Stefan,
I haven't checked the exact feature bits but it might be the UFO feature
problem. The tun driver was changed to drop a feature, this broke live
migration.
Take a look at
https://lists.linuxfoundation.org/pipermail/virtualization/2015-February/029217.html
Stefan
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] live migration fails after host kernel upgrade (3.12 => 3.18)
2015-03-23 11:54 ` Stefan Hajnoczi
@ 2015-03-23 12:16 ` Stefan Priebe - Profihost AG
0 siblings, 0 replies; 3+ messages in thread
From: Stefan Priebe - Profihost AG @ 2015-03-23 12:16 UTC (permalink / raw)
To: Stefan Hajnoczi; +Cc: qemu-devel
Hi,
Thanks.
I fixed it - there is already a patchseries in 4.0 to fix this. It will
be backported in 3.18.10 or 3.18.11.
Stefan
Am 23.03.2015 um 12:54 schrieb Stefan Hajnoczi:
> On Sun, Mar 15, 2015 at 09:59:25AM +0100, Stefan Priebe wrote:
>> after upgrading the host kernel from 3.12 to 3.18 live migration fails with
>> the following qemu output (guest running on a host with 3.12 => host with
>> 3.18):
>>
>> kvm: Features 0x30afffe3 unsupported. Allowed features: 0x79bfbbe7
>> qemu: warning: error while loading state for instance 0x0 of device
>> '0000:00:12.0/virtio-net'
>> kvm: load of migration failed: Operation not permitted
>>
>> But i can't
>
> Hi Stefan,
> I haven't checked the exact feature bits but it might be the UFO feature
> problem. The tun driver was changed to drop a feature, this broke live
> migration.
>
> Take a look at
> https://lists.linuxfoundation.org/pipermail/virtualization/2015-February/029217.html
>
> Stefan
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-03-23 12:17 UTC | newest]
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2015-03-15 8:59 [Qemu-devel] live migration fails after host kernel upgrade (3.12 => 3.18) Stefan Priebe
2015-03-23 11:54 ` Stefan Hajnoczi
2015-03-23 12:16 ` Stefan Priebe - Profihost AG
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