finding reason for EXC_BAD_ACCESS - in Xcode4

Question

I get an EXC_BAD_ACCESS error at a place that doesn\'t have anything to do with the root cause. I fortunately found the reason to be an array that was too small

Answer 1

It's quite likely that the place you get the EXC_BAD_ACCESS will not be related to the root cause. It could be related and could therefore offer a clue. But that's not certain.

To answer your points:

1. NSZombiesEnabled will only have an effect if you invoke a method on an object that has been deallocated. That might not be the cause of your EXC_BAD_ACCESS.

2. Using Instruments is separate to the debugger. If you profile in Instruments, the debugger is not active. Basically, it's a different tool.

3. This should be ok. Check that your Build Configuration is set to "Debug" and not "Release".

Here's a great link on what causes EXC_BAD_ACCESS and how to track down the root problem:

Lou Franco's Understanding EXC_BAD_ACCESS