title: iphone/ipad troubleshooting device crashes due to memory
body: <p>I have an app that often crashes on the device (iPad), but not on the simulator, so any simulator debug tactics (MallocStackLogging for example) are not an option. What I usually get in the console is this:</p>
  
  <pre><code>Received memory warning. Level=1
  Received memory warning. Level=2
  Program received signal:  “0”.
  Data Formatters temporarily unavailable, will re-try after a 'continue'. (Unknown error loading shared library "/Developer/usr/lib/libXcodeDebuggerSupport.dylib")
  </code></pre>
  
  <p>My question is, at this point, is there something I can do to find out exactly what is causing the crash? Obviously it's a memory issue, but I'm having a hard time finding the cause. Is it a leak? Too much allocation? Is there anything besides "Run with Performance Tool > Leaks" that I can do to track down the problem?</p>