On Wed, Jun 29, 2011 at 11:01:11AM +0200, Gerd Hoffmann wrote: > Hi, > > >>I think it will receive them after migration, since the command ring > >>was stored. > >Our confusion here is because you think there is still seemless migration. > >Unfortunately > >it doesn't work right now, unless you plan to fix it the only form of > >migration right > >now is switch-host, and for that those commands will be lost, the new > >connection will receive > >images for each surface. If you treat the client as seemless you are > >completely right. > > The spice server needs this too so it can render the surfaces > correctly before sending the surface images to the client (or send > the old surfaces and the commands on top of that). > > That is one difference between qemu migration and S3 state: For qemu > migration it is no problem to have unprocessed commands in the > rings, they will simply be processed once the spice server state is > restored. When the guest driver restores the state when it comes > back from S3 it needs the command rings to do so, thats why they > must be flushed before entering S3 ...
You mean it needs the command rings to be empty before, since they are lost during the reset, right? > > cheers, > Gerd >
