On Tue, 3 Oct 2017, Pavel Machek wrote: > > This point I don't understand. What exactly do you mean? > > Hibernation: > > We freeze, do system snapshot, unfreeze, and write image to > disk. Where/why do you unfreeze between creating the snapshot and writing it out? Again, I agree that the (rare) kthreads that are actually "creating" new I/O have to be somehow frozen and require special care. -- Jiri Kosina SUSE Labs