locationd on iOS iPhone crashing every 3 secs (Location jumps)
locationd is pretty annoying because 92% of tasks on your phone use it, along with the lack of awareness for this problem (barely any search results)
even with location services off, locationd is still being used in apps such as Camera, Photos, Reminders, Alarms, Maps, Weather, Notifications, Dialpad, Messages, and anything else that can use location services

I happened to experience locationd going over 110%, which took up all the memory, forcing apps that use locationd to freeze, resulting in having to restore a backup file, after restoring it says to 'upgrade' but does not actually upgrade, my guess is that locationd became defective after using too much memory and the restoration failed to validate it, thus replacing locationd

What I try to do is keep memory and storage AS LOW AS POSSIBLE, turn off background usage in all applications, and remember to use that app switcher every now and then.