Hi, One of our users is having an issue with our iOS App hanging consistently. The trace produced is not always the same but some parts are consistent between hangs. We have not been able to reproduce on our end. One sample stack trace from user is:
CrashReporter Key: bf76ea06932831ef2338cbe2b08c552b6140ef83
Hardware Model: iPhone12,3
Version: 100.0.0
Role: Foreground
OS Version: iOS 14.6
App Hang: The app was terminated while unresponsive
0 libsystem_kernel.dylib ___psynch_cvwait
1 libsystem_pthread.dylib __pthread_cond_wait
2 Metal -[_MTLCommandBuffer waitUntilCompleted]
3 CoreImage CI::MetalContext::readback_bitmap(CI::Bitmap*, CI::swizzle_info)
4 CoreImage ____ZN2CI16image_get_bitmapEPNS_7ContextEPNS_5ImageE6CGRectP12CGColorSpacePNS_6BitmapEPKNS_17RenderDestinationE_block_invoke
5 CoreImage CI::recursive_tile(CI::RenderTask*, CI::Context*, CI::RenderDestination const*, char const*, CI::Node*, CGRect const&, CI::PixelFormat, CI::swizzle_info const&, CI::TileTask* ( block_pointer)(CI::ProgramNode*, CGRect))
6 CoreImage CI::tile_node_graph(CI::Context*, CI::RenderDestination const*, char const*, CI::Node*, CGRect const&, CI::PixelFormat, CI::swizzle_info const&, CI::TileTask* ( block_pointer)(CI::ProgramNode*, CGRect))
7 CoreImage CI::image_get_bitmap(CI::Context*, CI::Image*, CGRect, CGColorSpace*, CI::Bitmap*, CI::RenderDestination const*)
8 CoreImage -[CIContext render:toBitmap:rowBytes:bounds:format:colorSpace:]
9 CoreUI -[CUIShapeEffectStack _newFlattenedImageFromShapeCGImage:withScale:ciContext:blendOverImage:]
10 CoreUI -[CUICatalog imageByStylingImage:stylePresetName:styleConfiguration:foregroundColor:scale:]
11 UIKitCore -[UIImage _imageWithStylePresets:tintColor:traitCollection:]
12 UIKitCore -[UIImageView _renditionForSource:size:withCGImageProvider:lazy:]
13 UIKitCore -[_UIImageContentContextualEffect _renditionWithCGImageProvider:size:lazy:]
14 UIKitCore -[_UIImageContent renditionWithSize:scale:applyingEffect:]
15 UIKitCore -[_UIImageContent renditionApplyingEffect:]
16 UIKitCore -[_UIImageCGImageContent renditionApplyingEffect:]
17 UIKitCore -[_UIImageContentLayout _materializeContentsIfNeeded]
18 UIKitCore -[_UIImageContentLayout contentsMultiplyColor]
19 UIKitCore -[UIImageView _updateContentsMultiplyColorAndSwizzleFromLayout:]
20 UIKitCore -[UIImageView _setImageViewContents:]
21 UIKitCore -[UIImageView _updateState]
22 UIKitCore +[UIView(Animation) performWithoutAnimation:]
23 UIKitCore -[UIImageView _updateImageViewForOldImage:newImage:]
24 UIKitCore -[UIImageView setImage:]
25 UIKitCore -[UIButton _updateImageView]
26 UIKitCore -[UIButton layoutSubviews]
27 UIKitCore -[UIView(CALayerDelegate) layoutSublayersOfLayer:]
28 QuartzCore -[CALayer layoutSublayers]
29 QuartzCore CA::Layer::layout_if_needed(CA::Transaction*)
30 QuartzCore CA::Layer::layout_and_display_if_needed(CA::Transaction*)
31 QuartzCore CA::Context::commit_transaction(CA::Transaction*, double, double*)
32 QuartzCore CA::Transaction::commit()
33 QuartzCore CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*)
34 CoreFoundation ___CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__
35 CoreFoundation ___CFRunLoopDoObservers
36 CoreFoundation ___CFRunLoopRun
37 CoreFoundation _CFRunLoopRunSpecific
38 GraphicsServices _GSEventRunModal
39 UIKitCore -[UIApplication _run]
40 UIKitCore _UIApplicationMain
42 libdyld.dylib _start
What could be causing the above? Thanks in advance for your help.