Pre-crash iphone symptoms - odd user position, volume change

Posted by BankStrong on Stack Overflow See other posts from Stack Overflow or by BankStrong
Published on 2010-04-12T02:08:30Z Indexed on 2010/04/12 2:13 UTC
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iphone

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xcode

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objective-c

I'm seeing intermittent strange symtoms in my app:

Blue blob (user position in MKMapView) starts "exploding" (odd, jerky animation). Can begin at startup and seems to indicate eventual problems.
Speaker volume suddenly increases (back to level before I invoked kAudioSessionSetProperty_OtherMixableAudioShouldDuck). The app keeps running, but this change tells me to expect no more sounds from AVAudioPlayer. Also a reliable indicator of a future crash (on save, etc).

I'm having trouble provoking this in the debugger (seems to only happen with movement in GPS). Any ideas to track it down?

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