Avi Kivity wrote:
Does anyone have a clever idea how to fix this without just waiting
for all IO requests to complete?
What's wrong with waiting for requests to complete? It should take a
few tens of milliseconds.
An alternative would be to attempt to cancel the requests. This incurs
no non-deterministic latency.
The tricky bit is that this has to happen at the device layer because
the opaques cannot be saved in a meaningful way.
We could start throttling requests late in the live stage, but I don't
really see the point.
Isn't virtio migration currently broken due to the qdev changes?
--
Regards,
Anthony Liguori
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