<option>MaxUse=</option> makes
sure that old core dumps are removed as soon as the total disk
space taken up by core dumps grows beyond this limit (defaults
- to 10% of the total disk size). <option>KeepFree=</option>
- controls how much disk space to keep free at least (defaults
- to 15% of the total disk size). Note that the disk space used
+ to 10% of the total disk size, capped at 4GiB, minimum 1MiB).
+ <option>KeepFree=</option> controls how much disk space to keep
+ free at least (defaults to 15% of the total disk size, limited
+ to a maximum of 4GiB). Note that the disk space used
by core dumps might temporarily exceed these limits while
core dumps are processed. Note that old core dumps are also
removed based on time via