Why does my UINavigationController send a message to a Zombie?

I have a weird problem.

I have a UINavigationController with UITabl开发者_JS百科eViewController inside.

In a nutshell: UINavigationController + UITableViewController + change device orientation causes:

[CALayer release]: message sent to deallocated instance

The problem: after fast scrolling table and changing device orientation a few times the "[CALayer release]: message sent to deallocated instance" error appears.

I debug it through "Allocations" and see:

0 CALayer Malloc 1 UIKit [UIView _createLayerWithFrame:]
1 CALayer Zombie -1 QuartzCore CA::release_objects<X::List<void const*>*)

What does it mean and what I supposed to do?

You clearly have a memory management issue.

The best bet for you would be to Analyze your code, which you can do with CMD+SHIFT+A. It will run a static analysis of your code and mark with nice blue arrows the places where the clang analyser reports possible memory issues.

As a guess, I'd wager that you have a problem in a viewDidAppear / viewDidDisappear.