System Freeze And Blinking Caps Lock

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https://bbs.archlinux.org – After updating arch using pacman -Syu and rebooting the system, it freezes completely with the caps lock blinking.It freezes completely means mouse pointer doesn't respond, can't shift to any other tty. I end up having to do a hard reset.(Yet to try magic sys rq keys. Will go home and try.)From other posts I have come to understand that the Caps Lock blinking points to a Kernel Panic.My linux version is 3.7.5 (from uname -a)The freeze happens while browsing the internet (any browser), and probably when opening pages with many images. (Doesn't freeze when opening arch linux wiki, (HowTos)