awalo Two things you might try before using the terminal to mask tracker-miner-fs-3 (per instructions above):
(1) Run this troubleshooting step just in case a package was not properly installed during the upgrade:
sudo eopkg check | grep Broken | awk '{print $4}' | xargs sudo eopkg it --reinstall
then reboot. If a corrupted package is causing the problem, reinstalling broken packages will probably clear it up.
(2) Open Nautilus (the file manager), open Nautilus settings, click on Preferences, and set the search, thumbnails and count options to "Never", then reboot.
Turning off those options in Nautilus might be a temporary band-aid until the next upgrade, will only work (a) if Nautilus file indexing is triggering tracker-miner (tracker-miner can be triggered by any number of apps that index files, such as photo management apps), and (b) might mitigate but will not resolve the core problem -- tracker is running amok. The better solution is to get tracker-miner-fs-3 running right by fixing the package if broken.