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From: =?UTF-8?Q?C=c3=a9dric_Le_Goater?= <clg@kaod.org>
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Date: Thu, 23 Feb 2017 12:56:41 +0100
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Subject: Re: [Qemu-devel] [PULL 12/23] virtio: use VRingMemoryRegionCaches
 for avail and used rings
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To: Paolo Bonzini <pbonzini@redhat.com>, Alex Williamson <alex.williamson@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>, "Michael S. Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>, qemu-devel@nongnu.org, Gerd Hoffmann <kraxel@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Laszlo Ersek <lersek@redhat.com>, David Gibson <david@gibson.dropbear.id.au>

On 02/23/2017 10:47 AM, Paolo Bonzini wrote:
>=20
>=20
> On 23/02/2017 10:33, C=E9dric Le Goater wrote:
>> I still have migration issues with this patch on ppc, which fails
>> on the target guest with :=20
>>
>> qemu-system-ppc64: VQ 0 size 0x80 < last_avail_idx 0xe1e - used_idx 0x=
0
>> qemu-system-ppc64: Failed to load virtio-blk:virtio
>> qemu-system-ppc64: error while loading state for instance 0x0 of devic=
e 'pci@800000020000000:01.0/virtio-blk'
>> qemu-system-ppc64: load of migration failed: Operation not permitted
>=20
> Stefan sent patches for that.  As a workaround, perhaps you can try
> disabling virtio-modern.

I just took the patches. All good now.

Thanks,

C.