Ok … so while I have a couple iPhone/iPad apps under by belt I am still “learning” a view things. Memory management on these devices seems to be primarily an “art” vs. pure science. Here is an example of that.
My typical rule is if I created the object then I release it … not 100% fool-proof but it at least gets me thinking in the correct direction. In this case it messed me up!
I have several UITextField views on my view and I was creating a method to load the values into these fields from the database. Then the strange behavior stared. If I had a “space” in the value it would crash upon loading the data into the field with an EXC_BAD_ACCESS in obj_msgsend(). If it did NOT have a space in the value it would only crash when I tried to reference the field’s text value when trying to save subsequently updated data.
The short story was that I was creating an NSString, loading it with data, assigning it to UITextField.text and then releasing the NSString. This was the issue … this was also causing the text property to get released and was eventually causing the EXC_BAD_ACCESS.
UPDATE: After going back and re-reviewing the code what I was doing was using a convenience method on a NSString instead of an alloc which meant it was put into the autorelease pool and thus it was getting release two times in that method … once when I release it and once when the pool was drained (and, of course, again when the UITextField was released).
Awesome.
Jason Agostoni 
I’ve the same problem..:
https://devforums.apple.com/message/659273#659273
Do you have an idea?
Can you post all the usage of that text field plus the use of any strings you assigned to it, etc? It could easily be something you assigned to the .text property (like an NSString) that got released one way or another.
I did it with that:
http://www.raywenderlich.com/6818/how-to-create-a-pdf-with-quartz-2d-in-ios-5-tutorial-part-2
But my drawText looks like this:
http://nopaste.info/274266add2.html
And I access on the UITextFields with:
textfieldname.text
In my header I did:
@interface …
IBOutlet UITextField *textfieldname;
I don’t release anything.. If you need the whole .m please give me a mail or sth. 🙂
Thanks
I think I found your problem. In your drawText method you have both a __bridge modifier on your case (from textToDraw) AND you have a CFRelease() statement at the end. __bridge indicates that ARC should handle the lifetime of the variable yet you still release it. Remove the CFRelease(stringRef) and see if that works.