Hi, I just noticed that I'm getting a lot of crashes on my app (crashes captured by App Store Connect) when some users (it happens randomly and I wasn't able to replicate) are trying to leave comments into a TextView using AVAudioEngine. I managed to download the crash log from AppStore and I will post it bellow. Date/Time: 2022-02-25 15:34:02.4994 +0000 Launch Time: 2022-02-25 15:23:54.4546 +0000 OS Version: iPhone OS 15.3.1 (19D52) Release Type: User Baseband Version: 2.23.02 Report Version: 104 Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Triggered by Thread: 0 Last Exception Backtrace: 0 CoreFoundation 0x1809510fc __exceptionPreprocess + 220 (NSException.m:200) 1 libobjc.A.dylib 0x1991a1d64 objc_exception_throw + 60 (objc-exception.mm:565) 2 CoreFoundation 0x180a275c0 +[NSException raise:format:arguments:] + 100 (NSException.m:147) 3 AVFAudio 0x1f3a7961c AVAE_RaiseException(NSString*, ...) + 60 (AVAEInternal.h:69) 4 AVFAudio 0x1f3ae5b4c AUGraphNodeBaseV3::CreateRecordingTap(unsigned long, unsigned int, AVAudioFormat*, void (AVAudioPCMBuffer*, AVAudioTime*) block_pointer) + 776 (AVAEInternal.h:77) 5 AVFAudio 0x1f3acbf14 AVAudioEngineGraph::InstallTapOnNode(AVAudioNode*, unsigned long, unsigned int, AVAudioFormat*, void (AVAudioPCMBuffer*, AVAudioTime*) block_pointer) + 988 (AVAudioEngineGraph.mm:2029) 6 AVFAudio 0x1f3b4f7f8 AVAudioEngineImpl::InstallTapOnNode(AVAudioNode*, unsigned long, unsigned int, AVAudioFormat*, void (AVAudioPCMBuffer*, AVAudioTime*) block_pointer) + 300 (AVAudioEngine.mm:1337) 7 AVFAudio 0x1f3b32918 -[AVAudioNode installTapOnBus:bufferSize:format:block:] + 572 (AVAudioNode.mm:185) 8 0x100a472b4 InspectionCommentsVC.startRecording() + 1608 (InspectionCommentsVC.swift:275) 9 0x100a48120 specialized InspectionCommentsVC.startStopMicrophoneBtn(_:) + 256 (InspectionCommentsVC.swift:195) 10 0x100a468bc startStopMicrophoneBtn + 4 (<compiler-generated>:0) 11 0x100a468bc @objc InspectionCommentsVC.startStopMicrophoneBtn(_:) + 48 12 UIKitCore 0x183229a98 -[UIApplication sendAction:to:from:forEvent:] + 100 (UIApplication.m:5361) 13 UIKitCore 0x183355db8 -[UIControl sendAction:to:forEvent:] + 128 (UIControl.m:871) 14 UIKitCore 0x1830d0f90 -[UIControl _sendActionsForEvents:withEvent:] + 352 (UIControl.m:942) 15 UIKitCore 0x18316d864 -[UIButton _sendActionsForEvents:withEvent:] + 160 (UIButton.m:4142) 16 UIKitCore 0x183400b40 -[UIControl touchesEnded:withEvent:] + 536 (UIControl.m:637) 17 UIKitCore 0x182ed358c -[UIWindow _sendTouchesForEvent:] + 980 (UIWindow.m:2974) 18 UIKitCore 0x182f04f48 -[UIWindow sendEvent:] + 4456 (UIWindow.m:3274) 19 UIKitCore 0x1830b4e34 -[UIApplication sendEvent:] + 828 (UIApplication.m:11877) 20 UIKitCore 0x182ed8140 __dispatchPreprocessedEventFromEventQueue + 7904 (UIEventDispatcher.m:2290) 21 UIKitCore 0x182eccf2c __processEventQueue + 6760 (UIEventDispatcher.m:2597) 22 UIKitCore 0x183d13d54 updateCycleEntry + 176 (UIEventDispatcher.m:102) 23 UIKitCore 0x18353eb44 _UIUpdateSequenceRun + 84 (_UIUpdateSequence.mm:112) 24 UIKitCore 0x183bbb84c schedulerStepScheduledMainSection + 144 (_UIUpdateCycleScheduler.m:1174) 25 UIKitCore 0x183bbae3c runloopSourceCallback + 60 (_UIUpdateCycleScheduler.m:1262) 26 CoreFoundation 0x1809730d0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1972) 27 CoreFoundation 0x180983d90 __CFRunLoopDoSource0 + 208 (CFRunLoop.c:2016) 28 CoreFoundation 0x1808be098 __CFRunLoopDoSources0 + 268 (CFRunLoop.c:2053) 29 CoreFoundation 0x1808c38a4 __CFRunLoopRun + 820 (CFRunLoop.c:2951) 30 CoreFoundation 0x1808d7468 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268) 31 GraphicsServices 0x19c47b38c GSEventRunModal + 164 (GSEvent.c:2200) 32 UIKitCore 0x18327a5d0 -[UIApplication _run] + 1100 (UIApplication.m:3493) 33 UIKitCore 0x182ff8f74 UIApplicationMain + 364 (UIApplication.m:5047) Thanks for reading this ! Kind regards, Flo

And here is the crash log: Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Termination Reason: SIGNAL 6 Abort trap: 6 Terminating Process: [4954] Triggered by Thread: 0 Last Exception Backtrace: 0 CoreFoundation 0x1a1e6ab28 __exceptionPreprocess + 164 (NSException.m:249) 1 libobjc.A.dylib 0x199cb6f78 objc_exception_throw + 60 (objc-exception.mm:356) 2 CoreFoundation 0x1a1ef0234 +[NSException raise:format:arguments:] + 96 (NSException.m:0) 3 AVFAudio 0x1bb856a84 AVAE_RaiseException(NSString*, ...) + 52 (AVAEInternal.h:69) 4 AVFAudio 0x1bb8b8c78 AUGraphNodeBaseV3::CreateRecordingTap(unsigned long, unsigned int, AVAudioFormat*, void (AVAudioPCMBuffer*, AVAudioTime*) block_pointer) + 760 (AVAEGraphNode.mm:832) 5 AVFAudio 0x1bb930f1c -[AVAudioNode installTapOnBus:bufferSize:format:block:] + 1420 (AVAudioNode.mm:185) 6 0x104b4eed8 InspectionCommentsVC.startRecording() + 1700 (InspectionCommentsVC.swift:278) 7 0x104b503c0 specialized InspectionCommentsVC.startStopMicrophoneBtn(_:) + 256 (InspectionCommentsVC.swift:198) 8 0x104b4e474 InspectionCommentsVC.startStopMicrophoneBtn(_:) + 4 (<compiler-generated>:0) 9 0x104b4e474 @objc InspectionCommentsVC.startStopMicrophoneBtn(_:) + 48 10 UIKitCore 0x1a4e2bf78 -[UIApplication sendAction:to:from:forEvent:] + 100 (UIApplication.m:5595) 11 UIKitCore 0x1a47c0698 -[UIControl sendAction:to:forEvent:] + 112 (UIControl.m:920) 12 UIKitCore 0x1a47c0a10 -[UIControl _sendActionsForEvents:withEvent:] + 324 (UIControl.m:991) 13 UIKitCore 0x1a47bdf0c -[UIButton _sendActionsForEvents:withEvent:] + 124 (UIButton.m:4173) 14 UIKitCore 0x1a47bfa78 -[UIControl touchesEnded:withEvent:] + 400 (UIControl.m:670) 15 UIKitCore 0x1a41fb4c0 -[UIWindow _sendTouchesForEvent:] + 776 (UIWindow.m:3330) 16 UIKitCore 0x1a41fae64 -[UIWindow sendEvent:] + 3204 (UIWindow.m:3658) 17 UIKitCore 0x1a41fa0e4 -[UIApplication sendEvent:] + 560 (UIApplication.m:12689) 18 UIKitCore 0x1a41bc970 __dispatchPreprocessedEventFromEventQueue + 5552 (UIEventDispatcher.m:2598) 19 UIKitCore 0x1a41bb010 __processEventQueue + 5544 (UIEventDispatcher.m:2956) 20 UIKitCore 0x1a41b9a1c updateCycleEntry + 160 (UIEventDispatcher.m:126) 21 UIKitCore 0x1a40a4d78 _UIUpdateSequenceRun + 84 (_UIUpdateSequence.mm:119) 22 UIKitCore 0x1a40a4468 schedulerStepScheduledMainSection + 144 (_UIUpdateScheduler.m:1037) 23 UIKitCore 0x1a40a4524 runloopSourceCallback + 92 (_UIUpdateScheduler.m:1186) 24 CoreFoundation 0x1a1db562c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1957) 25 CoreFoundation 0x1a1db48a8 __CFRunLoopDoSource0 + 176 (CFRunLoop.c:2001) 26 CoreFoundation 0x1a1db3058 __CFRunLoopDoSources0 + 244 (CFRunLoop.c:2038) 27 CoreFoundation 0x1a1db1d88 __CFRunLoopRun + 828 (CFRunLoop.c:2955) 28 CoreFoundation 0x1a1db1968 CFRunLoopRunSpecific + 608 (CFRunLoop.c:3420) 29 GraphicsServices 0x1e60a74e0 GSEventRunModal + 164 (GSEvent.c:2196) 30 UIKitCore 0x1a4224edc -[UIApplication _run] + 888 (UIApplication.m:3692) 31 UIKitCore 0x1a4224518 UIApplicationMain + 340 (UIApplication.m:5282) 32 0x104b9d170 main + 64 (AppDelegate.swift:15) 33 dyld 0x1c52d2d84 start + 2240 (dyldMain.cpp:1298) Kernel Triage: VM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter VM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter VM - (arg = 0x3) mach_vm_allocate_kernel failed within call to vm_map_enter