Continuing some helpful StackOverflow debugging, I have a zombie I need to track down:
2010-08-22 10:18:51.111 AppName[106:307] *** -[CFString release]: message sent to deallocated instance 0x19f3b0
How would one find the variable name or whathaveyou for the 0x19f3b0 Zombie?
Run the Allocations instrument, and enable “NSZombie Detection” and also turn on “track release/retain”. Then as you are running, when the zombie is encountered, it pops up an alert and lets you drill down to explore what code released and retained the original object.