I encountered the same error before on my optimus G e975 stock , before. it's rooted and bootloader unlocked using freegee. when i try to check is wifi-kill application will work, all of a sudden, my phone reboots, i was able to saw it boot normally, put it on my pocket, when i checked my phone again, i had the same image that you have, or do we need to call it BSOD for android. I dont have an idea why it happen, obviously, this is the first time that I experienced it.
just out of curiosity, can anyone advise my the reason why I got that error, BSOD maybe.