This carpet damage is from a pet clawing at the carpet to tile edge.  Those tack strips poling through can really hurt if you catch one walking by.  If you have tack strip exposed anywhere in your home, a quick fix you can do until you can get the repair done is to take a hammer and CAREFULLY hammer down the tacks.  Just be careful not to crack your tile!

Buckeye Carpet Repair (2)Buckeye Carpet Repair