> IMHO it is better to disable hibernation in systemd if we know
> cannot work rather than disable s2h permanently in gnome.
> In particular, it is fairly easy to tweak systemd to understand the
> 'noresume' parameter and notice the lack of 'resume=' (Long term we
> want to make hibernation work without resume=, but until then.)
> I'll try to get this ready before F29 final.
> That should solve the case of "configuration" issues, and will leave
> us only with those cases where the kernel drivers have issues.
Well, it was suggested upthread that even if resume= is set, swap could
well be too small. Per its comments, for instance, anaconda certainly
does not ensure that swap size is larger than RAM size:
# the succeeding if-statement implements the following formula for
# suggested swap size.
# swap(mem) = 2 * mem, if mem < 2 GiB
# = mem, if 2 GiB <= mem < 8 GiB
# = mem / 2, if 8 GIB <= mem < 64 GiB
# = 4 GiB, if mem >= 64 GiB
it's going to be exactly equal to memory size or smaller than memory
size on almost all modern systems, according to that at least.
I also wonder how it detects if zram is being used for swap.