Am Thu, 10 May 2018 11:40:18 +0100 schrieb Anthony PERARD <anthony.per...@citrix.com>:
> I'm not sure if that information is going to help, but that what I have > for now about the lock of block images. I think the issue is not with two dom0s locking the same file, but with one qemu process trying to lock the same region within a file twice. That would not happen if an 'unplug' happens before the PV driver within qemu takes control. I'm sure migration with qcow2 will fail with a pvops domU if 512b109ec962 gets reverted. I will look into vmstate_xen_platform, as suggested by Stefano, to preserve the unplug state during the lifetime of a domU. I think that is the correct approach, and 512b109ec962 should have never ever go upstream. Olaf
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