Over the last little while I have been encountering some crashes that are absolutely baffling. They will only appear on the Release Configuration of the application that I am building, and they also are difficult to reproduce. A rigorous search of Google has also brought up not many (if any) answers.
Here is a relevant crash log, for the one crash that I’m trying to fix, and physically can’t. The crash occurs after I close a modal view controller and as the views inside of that modal view controller deallocate. For reference, I am using Core Data and also have some objects created inside of the dismissed modal view controller that aren’t inserted into any managed object context (perhaps that’s it?).
Just updating this.
I had some try-catch logic which was causing ARC to over-release an NSString. I found this by using the Zombies tool in Instruments. When I updated this logic and removed the original try-catch logic, the problem was fixed.