+> [10.000000] [surf_vm/WARNING] Dirty page tracking: 1 pending task(s) on a destroyed VM (first one is (name hidden)).
+> If you don't understand why your task was not properly removed, please report that bug.
+> This is a known bug if you turned the host off during the VM execution.
+> Please remind us of that problem at some point: our code base is not ready to fix this harmless issue in 2016, sorry.