I do wish there was a way to reserve swap spaces for hibernation that don't contribute to the virtual memory. Else by construction the hibernation space is not sufficient for the entire virtual memory space, and hibernation will fail when the virtual memory is getting full.

this. i don't even want swap for my apps. they allocate to much memory as it is. i'd rather they be killed when the memory runs out or simply be prevented from allocating memory that's not there. the kind of apps that can be safely swapped out are rarely using much memory anyways.

but i do want hibernate to work.