title: App crashes at gpus_ReturnNotPermittedKillClient
body: <p>I am seeing new crashes specific to app running on iOS 8. Couldn't figure out what the issue is, couldn't reproduce the issue. Happens at App StartUp, and App doesn't call OpenGL ES functions directly.</p>
  
  <p><code>InitialViewController</code> <code>viewDidAppear</code> method line # 92 I initiate a segue from storyboard by: <code>[self performSegueWithIdentifier:segueIdentifier sender:self];</code> where <code>self</code> is <code>InitialViewController</code> class.</p>
  
  <p><strong>Stacktrace:</strong></p>
  
  <pre><code>Thread: Unknown Name (Crashed)
  0     libGPUSupportMercury.dylib            0x28c5c8fe gpus_ReturnNotPermittedKillClient + 10
  1     libGPUSupportMercury.dylib            0x28c5d249 gldCreateContext + 206
  2     GLEngine                              0x248a093b gliCreateContextWithShared + 600
  3     OpenGLES                              0x2497cab3 -[EAGLContext initWithAPI:properties:] + 404
  4     CoreImage                             0x225ecb8b ___ZN2CI11can_use_gpuEv_block_invoke + 140
  5     libdispatch.dylib                     0x2fbb98b7 _dispatch_client_callout + 20
  6     libdispatch.dylib                     0x2fbba4fb dispatch_once_f + 60
  7     CoreImage                             0x225ecafb _ZN2CI11can_use_gpuEv + 96
  8     CoreImage                             0x2256ac79 +[CIContext contextWithOptions:] + 186
  9     CoreUI                                0x27bdc837 CreateSharedCIContext + 76
  10   libsystem_pthread.dylib                0x2fd1ddcf __pthread_once_handler + 48
  11   libsystem_platform.dylib               0x2fd16867 _os_once + 40
  12   libsystem_pthread.dylib                0x2fd1bf8b pthread_once + 48
  13   CoreUI                                 0x27bdc7d9 +[CUIShapeEffectStack sharedCIContext] + 26
  14   CoreUI                                 0x27be3af7 -[CUICatalog imageByStylingImage:stylePresetName:styleConfiguration:foregroundColor:scale:] + 80
  15   UIKit                                  0x256c89db -[UIImage _imageWithStylePresets:withTintColor:] + 540
  16   UIKit                                  0x25456875 -[UIImageView _setImageViewContents:] + 1074
  17   UIKit                                  0x25455fb5 +[UIView(Animation) performWithoutAnimation:] + 70
  18   UIKit                                  0x25747db9 -[UIImageView _updateImageViewForOldImage:newImage:] + 674
  19   UIKit                                  0x254559c7 -[UIImageView setImage:] + 264
  20   UIKit                                  0x254f01b1 -[UINavigationBar _updateBackIndicatorImage] + 346
  21   UIKit                                  0x254d4143 -[UINavigationBar layoutSubviews] + 2480
  22   UIKit                                  0x25446b37 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 512
  23   QuartzCore                             0x24e6eccd -[CALayer layoutSublayers] + 134
  24   QuartzCore                             0x24e6a6b5 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 358
  25   UIKit                                  0x25459183 -[UIView(Hierarchy) layoutBelowIfNeeded] + 136
  26   UIKit                                  0x25455fb5 +[UIView(Animation) performWithoutAnimation:] + 70
  27   UIKit                                  0x254d2fc5 -[UINavigationController _positionNavigationBarHidden:edge:initialOffset:] + 786
  28   UIKit                                  0x254d2c63 -[UINavigationController _positionNavigationBarHidden:edge:] + 200
  29   UIKit                                  0x254cf875 -[UINavigationController loadView] + 246
  30   UIKit                                  0x254493d9 -[UIViewController loadViewIfRequired] + 66
  31   UIKit                                  0x2544935d -[UIViewController view] + 22
  32   UIKit                                  0x254f1faf -[UIViewController shouldAutorotate] + 24
  33   UIKit                                  0x2552bbd7 -[UIViewController _preferredInterfaceOrientationForPresentationInWindow:fromInterfaceOrientation:] + 248
  34   UIKit                                  0x2552a2b9 -[UIWindowController transition:fromViewController:toViewController:target:didEndSelector:animation:] + 2118
  35   UIKit                                  0x2572be1f -[UIViewController _windowControllerBasedPresentViewController:withTransition:completion:] + 4896
  36   UIKit                                  0x2572c4ab __62-[UIViewController presentViewController:animated:completion:]_block_invoke + 256
  37   UIKit                                  0x25529243 -[UIViewController presentViewController:animated:completion:] + 192
  38   UIKit                                  0x2572c63f -[UIViewController presentModalViewController:animated:] + 28
  39   MyAppName                              0x00082901 -[InitialViewController viewDidAppear:] (InitialViewController.m:92)
  40   UIKit                                  0x2545ed5f -[UIViewController _setViewAppearState:isAnimating:] + 500
  41   UIKit                                  0x254c322f -[UIViewController _executeAfterAppearanceBlock] + 52
  42   UIKit                                  0x254c31bd _applyBlockToCFArrayCopiedToStack + 306
  43   UIKit                                  0x2543f127 _afterCACommitHandler + 484
  44   CoreFoundation                         0x21f725cd __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 18
  45   CoreFoundation                         0x21f6fc8b __CFRunLoopDoObservers + 276
  46   CoreFoundation                         0x21f70093 __CFRunLoopRun + 912
  47   CoreFoundation                         0x21ebe621 CFRunLoopRunSpecific + 474
  48   CoreFoundation                         0x21ebe433 CFRunLoopRunInMode + 104
  49   GraphicsServices                       0x2926c0a9 GSEventRunModal + 134
  50   UIKit                                  0x254a8809 UIApplicationMain + 1438
  51   MyAppName                              0x00074329 main (main.m:36)
  52   libdyld.dylib                          0x2fbd9aaf start + 0
  </code></pre>
  
  <p>Can someone please help me find what the root cause for this issue is.</p>