We have an iOS app in the App Store. Recently, we see in Organizer / Crashes for that app a new type of crash that seems bound to iOS 13 devices (21 devices affected in the last few weeks, all with iOS 13.1, .2, or .3). Xcode reports that the crashes occurred in QuartzCore, on CA::Render::Encoder::grow(unsigned long).
Any idea what can it be and how it could be fixed? It doesn't look related to our code. Can it be a recent Apple bug? (We didn't have these crash reports before iOS 13.) Thank you in advance.
Here is an extract from the crash log:
OS Version: iPhone OS 13.3 (17C54)
Release Type: User
Baseband Version: n/a
Report Version: 104
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Triggered by Thread: 0
Thread 0 name:
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x0000000191d27ec4 __pthread_kill + 8
1 libsystem_pthread.dylib 0x0000000191c431d8 pthread_kill$VARIANT$mp + 136 (pthread.c:1458)
2 libsystem_c.dylib 0x0000000191b97844 abort + 100 (abort.c:110)
3 QuartzCore 0x00000001989af340 CA::Render::Encoder::grow(unsigned long) + 304 (render-coding.cpp:562)
4 QuartzCore 0x00000001989afa80 CA::Render::Encoder::encode_data_async(void const*, unsigned long, void (*)(void const*, void*), ... + 172 (render-coding.h:272)
5 QuartzCore 0x000000019886c358 CA::Render::Image::encode(CA::Render::Encoder*) const + 748 (render-image.cpp:401)
6 QuartzCore 0x000000019888510c CA::Render::Layer::encode(CA::Render::Encoder*) const + 112 (render-coding.h:388)
7 QuartzCore 0x00000001989b3c2c CA::Render::encode_set_object(CA::Render::Encoder*, unsigned long, unsigned int, CA::Render::Obje... + 192 (render-coding.cpp:2151)
8 QuartzCore 0x00000001988f78a4 invocation function for block in CA::Context::commit_transaction(CA::Transaction*, double) + 1568 (CAContextInternal.mm:1632)
9 QuartzCore 0x00000001989add88 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 364 (CALayer.mm:2647)
10 QuartzCore 0x00000001989add00 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 228 (CALayer.mm:2633)
11 QuartzCore 0x00000001989add00 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 228 (CALayer.mm:2633)
12 QuartzCore 0x00000001989add00 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 228 (CALayer.mm:2633)
13 QuartzCore 0x00000001989add00 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 228 (CALayer.mm:2633)
14 QuartzCore 0x00000001989add00 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 228 (CALayer.mm:2633)
15 QuartzCore 0x00000001989add00 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 228 (CALayer.mm:2633)
16 QuartzCore 0x00000001989add00 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 228 (CALayer.mm:2633)
17 QuartzCore 0x00000001989add00 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 228 (CALayer.mm:2633)
18 QuartzCore 0x00000001989add00 CA::Layer::commit_if_needed(CA::Transaction*, void (CA::Layer*, unsigned int, unsigned int) block... + 228 (CALayer.mm:2633)
19 QuartzCore 0x00000001988f6924 CA::Context::commit_transaction(CA::Transaction*, double) + 2872 (CAContextInternal.mm:2288)
20 QuartzCore 0x000000019891fc08 CA::Transaction::commit() + 676 (CATransactionInternal.mm:438)
21 UIKitCore 0x0000000195769698 -[_UIContextBinder updateBindableOrderWithTest:force:] + 704 (_UIContextBinder.m:280)
22 UIKitCore 0x0000000195769214 -[_UIContextBinder createContextsWithTest:creationAction:] + 100 (_UIContextBinder.m:233)
23 UIKitCore 0x00000001961d2510 -[UIWindowScene _prepareForResume] + 84 (UIWindowScene.m:712)
24 UIKitCore 0x00000001955e364c -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] + 860 (UIScene.m:1055)
25 UIKitCore 0x00000001955e45b8 -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] + 220 (UIScene.m:1315)
26 UIKitCore 0x0000000195b57248 -[UIApplicationSceneClientAgent scene:handleEvent:withCompletion:] + 464 (UIApplicationSceneClientAgent.m:80)
27 FrontBoardServices 0x0000000197051248 -[FBSSceneImpl updater:didUpdateSettings:withDiff:transitionContext:completion:] + 544 (FBSSceneImpl.m:551)
28 FrontBoardServices 0x0000000197075d28 __88-[FBSWorkspaceScenesClient sceneID:updateWithSettingsDiff:transitionContext:completion:]_bloc... + 120 (FBSWorkspaceScenesClient.m:356)
29 FrontBoardServices 0x000000019705af04 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 232 (FBSWorkspace.m:357)
30 FrontBoardServices 0x0000000197075c5c __88-[FBSWorkspaceScenesClient sceneID:updateWithSettingsDiff:transitionContext:completion:]_bloc... + 184 (FBSWorkspaceScenesClient.m:355)
31 libdispatch.dylib 0x0000000191bfd184 _dispatch_client_callout + 16 (object.m:495)
32 libdispatch.dylib 0x0000000191ba5fd8 _dispatch_block_invoke_direct$VARIANT$mp + 224 (queue.c:466)
33 FrontBoardServices 0x000000019709a418 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 40 (FBSSerialQueue.m:173)
34 FrontBoardServices 0x000000019709a0e4 -[FBSSerialQueue _queue_performNextIfPossible] + 404 (FBSSerialQueue.m:216)
35 FrontBoardServices 0x000000019709a60c -[FBSSerialQueue _performNextFromRunLoopSource] + 28 (FBSSerialQueue.m:247)
36 CoreFoundation 0x0000000191eaea00 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24 (CFRunLoop.c:1922)
37 CoreFoundation 0x0000000191eae958 __CFRunLoopDoSource0 + 80 (CFRunLoop.c:1956)
38 CoreFoundation 0x0000000191eae0f0 __CFRunLoopDoSources0 + 180 (CFRunLoop.c:1992)
39 CoreFoundation 0x0000000191ea923c __CFRunLoopRun + 1080 (CFRunLoop.c:2882)
40 CoreFoundation 0x0000000191ea8adc CFRunLoopRunSpecific + 464 (CFRunLoop.c:3192)
41 GraphicsServices 0x000000019be2e328 GSEventRunModal + 104 (GSEvent.c:2246)
42 UIKitCore 0x0000000195fa3ae0 UIApplicationMain + 1936 (UIApplication.m:4773)
43 <Our app name> 0x0000000100d9d32c main + 88 (main.m:14)
44 libdyld.dylib 0x0000000191d32360 start + 4
