How to close-in on no-stack-trace crashes in iPhone?
===

We built a huge app with 10's of classes and 100's of methods.

In some stress test - the app crashes (the test is moving between tabs and views very quickly like crazy)

The app just exits, no stack trace, no data from NSZombie's, no data at all. No sigabrt, no bad_access.... nothing!!

How do you close-in on this kind of crash?

Thanks