quoted

quoted

And suspend/resume works just fine with freeze/thaw. See commit
eacfbf74196f ("power: freeze filesystems during suspend/resume")
which implements exactly that.

The reason this didn't work for you is very likely:

cat /sys/power/freeze_filesystems
0

which you must set to 1.

Actually, no, that's not correct.  The efivarfs freeze/thaw logic must
run unconditionally regardless of this setting to fix the systemd bug,
so all the variable resyncing is done in the thaw call, which isn't
conditioned on the above (or at least it shouldn't be).

It is conditioned on the above currently but we can certainly fix it
easily to not be.

Something like the appended patch would do it.