Hey I have been running Carbon Rom on my S3 for ages now love it, the GPSD problem seems to be related to a specific app running on the device.
Switch back to a custom ROMlooks like it only affects stock or stock based roms
edit:
looks like it might be samsung's remote location service , friend of mine is messing with his will let you know if it helps or if you would like to try yourself:
http://www.gadgethelpline.com/gpsd-s...-battery-life/



looks like it only affects stock or stock based roms
