title: How to solve KERN_INVALID_ADDRESS on EXC_BAD_ACCESS (SIGSEGV)
body: <p>On my mac OSX snow leopard and xcode 4.1 and the last SDK, My application crash on my phone but on my phone friend it don't crash.</p>
  
  <p>I've got this error, I launch my application, wait RSS feed and after 2/3 seconds it crashed  : 
  Thank you for your help....</p>
  
  <pre><code>Date/Time:       2011-10-07 10:15:54.675 +0200
  OS Version:      iPhone OS 4.3.3 (8J2)
  Report Version:  104
  
  Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
  Exception Codes: KERN_INVALID_ADDRESS at 0x2040b743
  Crashed Thread:  6
  
  Thread 0 name:  Dispatch queue: com.apple.main-thread
  Thread 0:
  0   libsystem_kernel.dylib          0x332a5c00 mach_msg_trap + 20
  1   libsystem_kernel.dylib          0x332a5758 mach_msg + 44
  2   CoreFoundation                  0x329382b8 __CFRunLoopServiceMachPort + 88
  3   CoreFoundation                  0x3293a562 __CFRunLoopRun + 350
  4   CoreFoundation                  0x328caebc CFRunLoopRunSpecific + 224
  5   CoreFoundation                  0x328cadc4 CFRunLoopRunInMode + 52
  6   GraphicsServices                0x33433418 GSEventRunModal + 108
  7   GraphicsServices                0x334334c4 GSEventRun + 56
  8   UIKit                           0x32417d62 -[UIApplication _run] + 398
  9   UIKit                           0x32415800 UIApplicationMain + 664
  
  Thread 1:
  0   libsystem_kernel.dylib          0x332a83ec __workq_kernreturn + 8
  1   libsystem_c.dylib               0x32c966d8 _pthread_wqthread + 592
  2   libsystem_c.dylib               0x32c96bbc start_wqthread + 0
  
  Thread 2 name:  Dispatch queue: com.apple.libdispatch-manager
  Thread 2:
  0   libsystem_kernel.dylib          0x332a8fbc kevent + 24
  1   libdispatch.dylib               0x30205032 _dispatch_mgr_invoke + 706
  2   libdispatch.dylib               0x3020603a _dispatch_queue_invoke + 86
  3   libdispatch.dylib               0x302055ea _dispatch_worker_thread2 + 186
  4   libsystem_c.dylib               0x32c9658a _pthread_wqthread + 258
  5   libsystem_c.dylib               0x32c96bbc start_wqthread + 0
  
  Thread 3:
  0   libsystem_kernel.dylib          0x332a7d18 __semwait_signal + 24
  1   libsystem_c.dylib               0x32cbc860 _pthread_cond_wait + 756
  2   libsystem_c.dylib               0x32c63eb2 pthread_cond_wait + 26
  3   Foundation                      0x33846904 -[NSCondition wait] + 164
  4   Cyntact.dylib                   0x0019cebe 0x19c000 + 3774
  5   Foundation                      0x33839382 -[NSThread main] + 38
  6   Foundation                      0x338ab5c6 __NSThread__main__ + 966
  7   libsystem_c.dylib               0x32c9530a _pthread_start + 242
  8   libsystem_c.dylib               0x32c96bb4 thread_start + 0
  
  Thread 4 name:  WebThread
  Thread 4:
  0   libsystem_kernel.dylib          0x332a5c00 mach_msg_trap + 20
  1   libsystem_kernel.dylib          0x332a5758 mach_msg + 44
  2   CoreFoundation                  0x329382b8 __CFRunLoopServiceMachPort + 88
  3   CoreFoundation                  0x3293a562 __CFRunLoopRun + 350
  4   CoreFoundation                  0x328caebc CFRunLoopRunSpecific + 224
  5   CoreFoundation                  0x328cadc4 CFRunLoopRunInMode + 52
  6   WebCore                         0x3114b27e RunWebThread(void*) + 382
  7   libsystem_c.dylib               0x32c9530a _pthread_start + 242
  8   libsystem_c.dylib               0x32c96bb4 thread_start + 0
  
  Thread 5:
  0   libsystem_kernel.dylib          0x332a5c00 mach_msg_trap + 20
  1   libsystem_kernel.dylib          0x332a5758 mach_msg + 44
  2   CoreFoundation                  0x329382b8 __CFRunLoopServiceMachPort + 88
  3   CoreFoundation                  0x3293a562 __CFRunLoopRun + 350
  4   CoreFoundation                  0x328caebc CFRunLoopRunSpecific + 224
  5   CoreFoundation                  0x3290d6d2 CFRunLoopRun + 42
  6                               0x0003f96a 0x1000 + 256362
  7   Foundation                      0x33839382 -[NSThread main] + 38
  8   Foundation                      0x338ab5c6 __NSThread__main__ + 966
  9   libsystem_c.dylib               0x32c9530a _pthread_start + 242
  10  libsystem_c.dylib               0x32c96bb4 thread_start + 0
  
  **Thread 6 Crashed:
  0   libobjc.A.dylib                 0x32da1c98 objc_msgSend + 16
  1   CoreFoundation                  0x328c519a CFRelease + 62
  2   CFNetwork                       0x3563c378 HTTPMessage::~HTTPMessage() + 56
  3   CFNetwork                       0x3563c336 HTTPMessage::~HTTPMessage() + 2
  4   CFNetwork                       0x3563c262 CFClass::FinalizeObj(void const*) + 10
  5   CoreFoundation                  0x328c5288 _CFRelease + 160
  6   CoreFoundation                  0x328c51ae CFRelease + 82
  7   CFNetwork                       0x3564ad52 HTTPReadFilter::~HTTPReadFilter() + 82
  8   CFNetwork                       0x3564acf6 HTTPReadFilter::~HTTPReadFilter() + 2
  9   CFNetwork                       0x3563c262 CFClass::FinalizeObj(void const*) + 10
  10  CoreFoundation                  0x328c5288 _CFRelease + 160
  11  CoreFoundation                  0x328c51ae CFRelease + 82
  12  CFNetwork                       0x356ba7cc HTTPReadFilter::readStreamFinalize(__CFReadStream*) + 4
  13  CFNetwork                       0x3564acea CFNetworkReadStream::httpStreamFinalize(__CFReadStream*, void*) + 10
  14  CoreFoundation                  0x32940bd8 __CFStreamDeallocate + 120
  15  CoreFoundation                  0x328c5288 _CFRelease + 160
  16  CoreFoundation                  0x328c51ae CFRelease + 82
  17  CFNetwork                       0x3564a7fc NetConnection::shutdownConnectionStreams() + 64
  18  CFNetwork                       0x356b7b38 NetConnection::closeStreamsIfPossibleOrSignalThatThatNeedsToBeDonePrettyPlease() + 20
  19  CFNetwork                       0x3568e018 NetConnection::doNotAllowMoreReqeusts() + 24
  20  CFNetwork                       0x356c9324 UnauthConnectionArray::removeValueAtIndex(long) + 28
  21  CFNetwork                       0x356c7ade HTTPConnectionCacheEntry::removeAllConnections() + 46
  22  CFNetwork                       0x356c77ac HTTPConnectionCacheEntry::setHasBeenForgotten() + 20
  23  CFNetwork                       0x356c78fc HTTPConnectionCacheDictionary::forgetCacheEntries() + 60
  24  CFNetwork                       0x356c792c ConnectionCacheTLS::resetCacheForThisThread() + 12
  25  CFNetwork                       0x35648aa0 ConnectionTimerTLS::_timerPurgeEntries(__CFRunLoopTimer*, void*) + 12
  26  CoreFoundation                  0x32937a40 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 8
  27  CoreFoundation                  0x32939ec4 __CFRunLoopDoTimer + 844
  28  CoreFoundation                  0x3293a83e __CFRunLoopRun + 1082
  29  CoreFoundation                  0x328caebc CFRunLoopRunSpecific + 224
  30  CoreFoundation                  0x328cadc4 CFRunLoopRunInMode + 52
  31  Foundation                      0x338467f6 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 206
  32  Foundation                      0x33839382 -[NSThread main] + 38
  33  Foundation                      0x338ab5c6 __NSThread__main__ + 966
  34  libsystem_c.dylib               0x32c9530a _pthread_start + 242
  35  libsystem_c.dylib               0x32c96bb4 thread_start + 0**
  
  Thread 7 name:  com.apple.CFSocket.private
  Thread 7:
  0   libsystem_kernel.dylib          0x332a7c60 __select + 20
  1   CoreFoundation                  0x3293d8f2 __CFSocketManager + 582
  2   libsystem_c.dylib               0x32c9530a _pthread_start + 242
  3   libsystem_c.dylib               0x32c96bb4 thread_start + 0
  </code></pre>