Looks like a bug on the database end where it's stuck in a loop where the last transaction is contantly getting rolled back and transactions are being done all over again.
You're not the first to say something weird is happening on Gox. They'd be better off stopping trading for 15 mins if something is messed up so no one panics.
They missed that panic button about 4 hours ago. Gox is broken and repeating orders...