Nov 06 16:21:40 delly gnome-shell[5259]: Attempting to run a JS callback during garbage collection. This is most likely caused by destroying a Clutter actor or GTK widget with ::destroy signal connected, or using the destroy(), dispose(), or remove() vfuncs. Because it would crash the application, it has been blocke>
Nov 06 16:21:40 delly gnome-shell[5259]: The offending callback was SourceFunc().
This is the king of message filling up the logs:
Nov 06 16:21:40 delly gnome-shell[5259]: Attempting to run a JS callback during garbage collection. This is most likely caused by destroying a Clutter actor or GTK widget with ::destroy signal connected, or using the destroy(), dispose(), or remove() vfuncs. Because it would crash the application, it has been blocke>
Nov 06 16:21:40 delly gnome-shell[5259]: The offending callback was SourceFunc().
Also note that gnome-shell takes 100% CPU