Hi, > > -device cirrus-vga,vgamem_mb=8
Don't do that. cirrus has 4 MB video memory, like physical hardware has. And you can't change that (i.e. the guest wouldn't be able to use it if you assign more). The switch exists for live migration compatibility only, because older qemu versions erroneously assigned more than 4 MB to cirrus. I expect you can't trigger the assert any more if you remove "vgamem_mb=8". cheers, Gerd