title: Having trouble with a Crash Report - EXC_BAD_ACCESS
body: <p>OK, SO I've received a crash report for one of my apps, but I swear I'm 100% confused.</p>
  
  <p>This is what the "core" part of it looks like :</p>
  
  <pre><code>Crashed Thread:  0  Dispatch queue: com.apple.main-thread
  
  Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
  Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000
  
  VM Regions Near 0:
  --&gt; 
      __TEXT                 0000000100000000-0000000100015000 [   84K] r-x/rwx SM=COW  /Applications/MY_APP/Contents/MacOS/MY_APP
  
  Application Specific Information:
  objc[337]: garbage collection is ON
  
  Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
  0   libsystem_c.dylib               0x00007fff90128650 strlen + 16
  1   MY_BUNDLE_ID                    0x0000000100008f12 0x100000000 + 36626
  2   MY_BUNDLE_ID                    0x000000010000b435 0x100000000 + 46133
  3   MY_BUNDLE_ID                    0x0000000100003c90 0x100000000 + 15504
  4   com.apple.CoreFoundation        0x00007fff9065147a _CFXNotificationPost + 2554
  5   com.apple.Foundation            0x00007fff8e5fe846 -[NSNotificationCenter postNotificationName:object:userInfo:] + 64
  6   com.apple.AppKit                0x00007fff9a7894a7 -[NSTableView textDidChange:] + 377
  7   com.apple.CoreFoundation        0x00007fff9065147a _CFXNotificationPost + 2554
  8   com.apple.Foundation            0x00007fff8e5fe846 -[NSNotificationCenter postNotificationName:object:userInfo:] + 64
  9   com.apple.AppKit                0x00007fff9a15c260 -[NSTextView(NSSharing) didChangeText] + 339
  10  com.apple.AppKit                0x00007fff9a7f8381 _NSDoUserReplaceForCharRange + 390
  11  com.apple.AppKit                0x00007fff9a7f85b1 _NSDoUserDeleteForCharRange + 38
  12  com.apple.AppKit                0x00007fff9a7e1e72 -[NSTextView(NSKeyBindingCommands) deleteBackward:] + 440
  13  com.apple.AppKit                0x00007fff9a18a1cc -[NSResponder doCommandBySelector:] + 75
  14  com.apple.AppKit                0x00007fff9a18a02e -[NSTextView doCommandBySelector:] + 197
  15  com.apple.AppKit                0x00007fff9a20cf4e -[NSKeyBindingManager(NSKeyBindingManager_MultiClients) interpretEventAsCommand:forClient:] + 2200
  16  com.apple.AppKit                0x00007fff9a20c3bb -[NSTextInputContext handleEvent:] + 939
  17  com.apple.AppKit                0x00007fff9a20bf87 -[NSView interpretKeyEvents:] + 183
  18  com.apple.AppKit                0x00007fff9a158f67 -[NSTextView keyDown:] + 723
  19  com.apple.AppKit                0x00007fff9a374120 -[NSWindow sendEvent:] + 9687
  20  com.apple.AppKit                0x00007fff9a36f744 -[NSApplication sendEvent:] + 5761
  21  com.apple.AppKit                0x00007fff9a2852fa -[NSApplication run] + 636
  22  com.apple.AppKit                0x00007fff9a229cb6 NSApplicationMain + 869
  23  MY_BUNDLE_ID                        0x0000000100002014 0x100000000 + 8212
  </code></pre>
  
  <p>Do you have any idea what might be going wrong? 
  Or could you just point me to the right direction?</p>
  
  <hr>
  
  <p><strong>As an aside :</strong></p>
  
  <p>Could anyone guide me how to make e.g. <code>0x00007fff90128650</code> more... meaningful and make it (in some future crash report) also show the name of the function?</p>