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Re: [Qemu-devel] live migration fails after host kernel upgrade (3.12 =>
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] live migration fails after host kernel upgrade (3.12 => 3.18) |
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Date: |
Mon, 23 Mar 2015 11:54:30 +0000 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
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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