App got crashed upon the launch

We got multiple crash events reported by our customers post-app update.

The event is like the app got crashed upon the app launch.

After reinstalling the app, it works for them.

Here I have attached complete crash logs shared by our customers from their devices as well as from the Testflight crash logs console from Xcode.

Here is the suspected code that causes the crash but we are not sure:


Thread 0 name:   Dispatch queue: com.apple.main-thread
Thread 0:
0   libsystem_kernel.dylib        	       0x2007c5b48 mach_msg2_trap + 8
1   libsystem_kernel.dylib        	       0x2007d8008 mach_msg2_internal + 80
2   libsystem_kernel.dylib        	       0x2007d8248 mach_msg_overwrite + 388
3   libsystem_kernel.dylib        	       0x2007c608c mach_msg + 24
4   libdispatch.dylib             	       0x1cb1b9364 _dispatch_mach_send_and_wait_for_reply + 540
5   libdispatch.dylib             	       0x1cb1b96ec dispatch_mach_send_with_result_and_wait_for_reply + 60
6   libxpc.dylib                  	       0x210c7b2e4 xpc_connection_send_message_with_reply_sync + 240
7   Security                      	       0x1cb9989b4 securityd_message_with_reply_sync + 124
8   Security                      	       0x1cb9a2aa4 securityd_send_sync_and_do + 88
9   Security                      	       0x1cba49598 cftype_to_bool_cftype_error_request + 160
10  Security                      	       0x1cb992d4c __SecItemCopyMatching_block_invoke_2 + 200
11  Security                      	       0x1cb995dc4 __SecItemAuthDoQuery_block_invoke + 532
12  Security                      	       0x1cb994898 SecItemAuthDoQuery + 1236
13  Security                      	       0x1cb995a94 __SecItemCopyMatching_block_invoke + 140
14  Security                      	       0x1cb99b99c SecOSStatusWith + 56
15  Security                      	       0x1cb99595c SecItemCopyMatching + 400
16  myappname                     	       0x10273ec34 0x102188000 + 5991476
17  myappname                     	       0x102473298 0x102188000 + 3060376
18  myappname                     	       0x1023e0be0 0x102188000 + 2460640
19  myappname                     	       0x1021d6f54 0x102188000 + 323412
20  myappname                     	       0x10264cd8c 0x102188000 + 5000588
21  UIKitCore                     	       0x1c60db810 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 180
22  UIKitCore                     	       0x1c60dafac -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:] + 2848
23  UIKitCore                     	       0x1c60d9f88 -[UIApplication _runWithMainScene:transitionContext:completion:] + 856
24  UIKitCore                     	       0x1c60d9bd4 -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:] + 132
25  UIKitCore                     	       0x1c5e1f600 _UIScenePerformActionsWithLifecycleActionMask + 108
26  UIKitCore                     	       0x1c6161918 __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke + 216

Kindly help here to get it resolved.

Thank you, Prashant

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{
  "uptime" : 170000,
  "procRole" : "Foreground",
  "version" : 2,
  "userID" : 501,
  "deployVersion" : 210,
  "modelCode" : "iPhone14,7",
  "coalitionID" : 999,
  "osVersion" : {
    "isEmbedded" : true,
    "train" : "iPhone OS 16.1.2",
    "releaseType" : "User",
    "build" : "20B110"
  },
  "captureTime" : "2022-12-20 09:55:32.2871 -0500",
  "incident" : "80AC779B-3E26-44EC-B8FD-37EAB83E4DE3",
  "pid" : 1225,
  "cpuType" : "ARM-64",
  "roots_installed" : 0,
  "bug_type" : "309",
  "procLaunch" : "2022-12-17 10:11:18.1817 -0500",
  "procStartAbsTime" : 999820497444,
  "procExitAbsTime" : 4196308352349,
  "procName" : "myappname",
  "procPath" : "\/private\/var\/containers\/Bundle\/Application\/1E0872E8-CA38-4782-AB2F-8C950121C6A3\/myappname.app\/myappname",
  "bundleInfo" : {"CFBundleShortVersionString":"5.19.0","CFBundleVersion":"20221110","CFBundleIdentifier":"com.eeeeee.myappname","DTAppStoreToolsBuild":"14B44"},
  "storeInfo" : {"storeCohortMetadata":"3|date=1445286600000&sf=143441","itemID":"720853854","deviceIdentifierForVendor":"4BA45BC6-3CA6-4D38-80BA-12F9495161FA","softwareVersionExternalIdentifier":"853524835","thirdParty":true,"applicationVariant":"1:iPhone14,7:16"},
  "parentProc" : "launchd",
  "parentPid" : 1,
  "coalitionName" : "com.eeeeee.myappname",
  "crashReporterKey" : "8fd7fc3ab94dcd7223dd5fbe0f766eecd3004dd8",
  "basebandVersion" : "1.13.03",
  "vmRegionInfo" : "0x3e42443c85 is in 0x1000000000-0x7000000000;  bytes after start: 198680263813  bytes before end: 213636596602\n      REGION TYPE                 START - END      [ VSIZE] PRT\/MAX SHRMOD  REGION DETAIL\n      commpage (reserved)      fc0000000-1000000000 [  1.0G] ---\/--- SM=NUL  ...(unallocated)\n--->  GPU Carveout (reserved) 1000000000-7000000000 [384.0G] ---\/--- SM=NUL  ...(unallocated)\n      UNUSED SPACE AT END",
  "exception" : {"codes":"0x0000000000000001, 0x35463c3e42443c85","rawCodes":[1,3838821970477333637],"type":"EXC_BAD_ACCESS","signal":"SIGSEGV","subtype":"KERN_INVALID_ADDRESS at 0x35463c3e42443c85 -> 0x0000003e42443c85 (possible pointer authentication failure)"},
  "termination" : {"flags":0,"code":11,"namespace":"SIGNAL","indicator":"Segmentation fault: 11","byProc":"exc handler","byPid":1225},
  "vmregioninfo" : "0x3e42443c85 is in 0x1000000000-0x7000000000;  bytes after start: 198680263813  bytes before end: 213636596602\n      REGION TYPE                 START - END      [ VSIZE] PRT\/MAX SHRMOD  REGION DETAIL\n      commpage (reserved)      fc0000000-1000000000 [  1.0G] ---\/--- SM=NUL  ...(unallocated)\n--->  GPU Carveout (reserved) 1000000000-7000000000 [384.0G] ---\/--- SM=NUL  ...(unallocated)\n      UNUSED SPACE AT END",
  "faultingThread" : 6,
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    "uuid" : "cb3ff411-4762-34d2-86a4-eca13f9fb6c3",
    "path" : "\/usr\/lib\/dyld",
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    "source" : "P",
    "arch" : "arm64e",
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    "uuid" : "1aa3a4b6-f9e7-3056-8c8b-4e4dd81312a4",
    "path" : "\/usr\/lib\/system\/libsystem_pthread.dylib",
    "name" : "libsystem_pthread.dylib"
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    "uuid" : "3f15e480-13ea-3a55-b842-57ba9323602d",
    "path" : "\/System\/Library\/Frameworks\/UserNotifications.framework\/UserNotifications",
    "name" : "UserNotifications"
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    "path" : "\/System\/Library\/Frameworks\/JavaScriptCore.framework\/JavaScriptCore",
    "name" : "JavaScriptCore"
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  "vmSummary" : "ReadOnly portion of Libraries: Total=971.9M resident=0K(0%) swapped_out_or_unallocated=971.9M(100%)\nWritable regions: Total=768.0M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=768.0M(100%)\n\n                                VIRTUAL   REGION \nREGION TYPE                        SIZE    COUNT (non-coalesced) \n===========                     =======  ======= \nActivity Tracing                   256K        1 \nColorSync                           48K        3 \nCoreAnimation                       16K        1 \nFoundation                          16K        1 \nKernel Alloc Once                   32K        1 \nMALLOC                           568.6M       37 \nMALLOC guard page                  128K        8 \nSTACK GUARD                        192K       12 \nStack                             6992K       12 \nVM_ALLOCATE                        176K        3 \nWebKit Malloc                    192.1M        6 \n__AUTH                            2851K      405 \n__AUTH_CONST                      23.5M      582 \n__CTF                               756        1 \n__DATA                            14.2M      573 \n__DATA_CONST                      28.6M      589 \n__DATA_DIRTY                      2658K      490 \n__ETC                              416K        1 \n__FONT_DATA                        2352        1 \n__LINKEDIT                       325.8M        4 \n__OBJC_CONST                      5198K      385 \n__OBJC_RO                         78.4M        1 \n__OBJC_RW                         2429K        1 \n__TEXT                           646.1M      600 \ndyld private memory                256K        1 \nmapped file                       43.4M       25 \nshared memory                       48K        3 \n===========                     =======  ======= \nTOTAL                              1.9G     3747 \n",
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    }
  ]
}
}

Incident Identifier: 2E3BB652-CFC8-4567-8E34-3E49354B2543
Hardware Model:      iPhone13,4
Process:             myApp [5838]
Path:                /private/var/containers/Bundle/Application/B291236B-4043-4F72-8F61-0582DD21EB55/myApp.app/myApp
Identifier:          com.eeeeee.myApp
Version:             5.19.0 (20221110)
AppStoreTools:       14B44
AppVariant:          1:iPhone13,4:15
Code Type:           ARM-64 (Native)
Role:                Foreground
Parent Process:      launchd [1]
Coalition:           com.eeeeee.myApp [1399]

Date/Time:           2022-12-19 09:30:05.7659 -0500
Launch Time:         2022-12-19 09:30:05.5518 -0500
OS Version:          iPhone OS 16.2 (20C65)
Release Type:        User
Baseband Version:    3.21.00
Report Version:      104

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x393c423e42303c56 -> 0x0000003e42303c56 (possible pointer authentication failure)
Exception Codes: 0x0000000000000001, 0x393c423e42303c56
VM Region Info: 0x3e42303c56 is in 0x1000000000-0x7000000000;  bytes after start: 198678953046  bytes before end: 213637907369
      REGION TYPE                 START - END      [ VSIZE] PRT/MAX SHRMOD  REGION DETAIL
      commpage (reserved)      fc0000000-1000000000 [  1.0G] ---/--- SM=NUL  ...(unallocated)
--->  GPU Carveout (reserved) 1000000000-7000000000 [384.0G] ---/--- SM=NUL  ...(unallocated)
      UNUSED SPACE AT END
Termination Reason: SIGNAL 11 Segmentation fault: 11
Terminating Process: exc handler [5838]

Triggered by Thread:  0


Thread 0 name:
Thread 0 Crashed:
0   libxpc.dylib                  	0x000000021b372bfc _xpc_dictionary_insert + 96 (dictionary.c:64)
1   libxpc.dylib                  	0x000000021b372be8 _xpc_dictionary_insert + 76 (dictionary.c:614)
2   libxpc.dylib                  	0x000000021b374654 _xpc_dictionary_deserialize_apply + 68 (dictionary.c:1227)
3   libxpc.dylib                  	0x000000021b3745d0 _xpc_dictionary_apply_wire_f + 136 (dictionary.c:534)
4   libxpc.dylib                  	0x000000021b371d44 _xpc_dictionary_create_from_received_message + 224 (dictionary.c:1246)
5   libxpc.dylib                  	0x000000021b35f8c4 _xpc_graph_unpack_impl + 236 (graph.c:67)
6   libxpc.dylib                  	0x000000021b35f5e4 xpc_receive_mach_msg + 280 (message.c:373)
7   libxpc.dylib                  	0x000000021b38234c _xpc_pipe_routine + 668 (pipe.c:566)
8   libxpc.dylib                  	0x000000021b3619ac _xpc_interface_routine + 184 (interface.c:162)
9   libxpc.dylib                  	0x000000021b362118 _xpc_look_up_endpoint + 268 (launch.c:37)
10  libxpc.dylib                  	0x000000021b36b14c _xpc_connection_bootstrap_look_up_slow + 288 (connection.c:699)
11  libxpc.dylib                  	0x000000021b36e1bc _xpc_connection_init + 1004 (connection.c:755)
12  libxpc.dylib                  	0x000000021b36ca2c _xpc_connection_activate_if_needed + 296 (connection.c:3842)
13  libxpc.dylib                  	0x000000021b36cafc xpc_connection_resume + 92 (connection.c:3866)
14  Security                      	0x00000001d50b4dc0 securityd_create_connection + 92 (client.c:305)
15  Security                      	0x00000001d50aab08 ___securityd_connection_block_invoke_2 + 180 (client.c:366)
16  libdispatch.dylib             	0x00000001d48a4fdc _dispatch_client_callout + 20 (object.m:560)
17  libdispatch.dylib             	0x00000001d48b4574 _dispatch_lane_barrier_sync_invoke_and_complete + 56 (queue.c:1023)
18  Security                      	0x00000001d50b4170 securityd_connection_for_operation + 684 (client.c:361)
19  Security                      	0x00000001d50a3eb4 securityd_message_with_reply_sync + 80 (client.c:689)
20  Security                      	0x00000001d50adfd0 securityd_send_sync_and_do + 88 (client.c:795)
21  Security                      	0x00000001d515656c cftype_to_bool_cftype_error_request + 160 (SecItem.m:1624)
22  Security                      	0x00000001d509e278 __SecItemCopyMatching_block_invoke_2 + 200 (SecItem.m:1646)
23  Security                      	0x00000001d50a12f0 __SecItemAuthDoQuery_block_invoke + 532 (SecItem.m:1598)
24  Security                      	0x00000001d509fdc4 SecItemAuthDoQuery + 1236 (SecItem.m:1386)
25  Security                      	0x00000001d50a0fc0 __SecItemCopyMatching_block_invoke + 140 (SecItem.m:1959)
26  Security                      	0x00000001d50a6ec8 SecOSStatusWith + 56 (SecItem.m:331)
27  Security                      	0x00000001d50a0e88 SecItemCopyMatching + 400 (SecItem.m:1958)
28  myApp               	0x0000000103192c34 -[SAMKeychainQuery fetch:] + 396 (SAMKeychainQuery.m:144)
29  myApp               	0x0000000102ec7298 -[KeychainHelper isKeychainAccessibleForKey:] + 180 (KeychainHelper.m:84)
30  myApp               	0x0000000102e34be0 -[StartupConfiguratorAppDelegate application:willFinishLaunchingWithOptions:] + 160 (StartupConfiguratorAppDelegate.m:16)
31  myApp               	0x0000000102c2af54 -[CompositeAppDelegate application:willFinishLaunchingWithOptions:] + 316 (CompositeAppDelegate.m:30)
32  myApp               	0x00000001030a0d8c -[ECWAppDelegate application:willFinishLaunchingWithOptions:] + 1076 (ECWAppDelegate.m:67)
33  UIKitCore                     	0x00000001cf7b6bdc -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 180 (UIApplication.m:2507)
34  UIKitCore                     	0x00000001cf7b6378 -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:] + 2848 (UIApplication.m:2949)
35  UIKitCore                     	0x00000001cf7b5354 -[UIApplication _runWithMainScene:transitionContext:completion:] + 856 (UIApplication.m:4754)
36  UIKitCore                     	0x00000001cf7b4fa0 -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:] + 132 (_UISceneLifecycleMultiplexer.m:451)
37  UIKitCore                     	0x00000001cf4fb20c _UIScenePerformActionsWithLifecycleActionMask + 108 (_UISceneLifecycleState.m:109)
38  UIKitCore                     	0x00000001cf83ce98 __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke + 216 (_UISceneLifecycleMultiplexer.m:564)
39  UIKitCore                     	0x00000001cf6edce0 -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:] + 220 (_UISceneLifecycleMultiplexer.m:513)
40  UIKitCore                     	0x00000001cf6edb08 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 620 (_UISceneLifecycleMultiplexer.m:563)
41  UIKitCore                     	0x00000001cf6ed6b8 -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:] + 252 (_UISceneLifecycleMultiplexer.m:469)
42  UIKitCore                     	0x00000001cf6ed584 __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block... + 148 (_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction.m:73)
43  UIKitCore                     	0x00000001cfdd12b8 +[BSAnimationSettings(UIKit) tryAnimatingWithSettings:fromCurrentState:actions:completion:] + 736 (BSAnimationSettings+UIKit.m:54)
44  UIKitCore                     	0x00000001cfe6aa8c _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion + 224 (_UISceneSettingsDiffAction.m:27)
45  UIKitCore                     	0x00000001cf59958c -[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:] + 316 (_UISceneSettingsDiffAction.m:20)
46  UIKitCore                     	0x00000001cfa0c184 __64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke.214 + 556 (UIScene.m:2000)
47  UIKitCore                     	0x00000001cf66bbb8 -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] + 216 (UIScene.m:1676)
48  UIKitCore                     	0x00000001cf66ba28 -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] + 244 (UIScene.m:1962)
49  UIKitCore                     	0x00000001cf66af7c -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 520 (UIApplication.m:4203)
50  UIKitCore                     	0x00000001cf66ad08 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 288 (UIApplicationSceneClientAgent.m:47)
51  FrontBoardServices            	0x00000001e2fb8e90 -[FBSScene _callOutQueue_agent_didCreateWithTransitionContext:completion:] + 344 (FBSScene.m:440)
52  FrontBoardServices            	0x00000001e2ff88f8 __92-[FBSWorkspaceScenesClient createSceneWithIdentity:parameters:transitionContext:completion:]_block_invoke.78 + 120 (FBSWorkspaceScenesClient.m:383)
53  FrontBoardServices            	0x00000001e2fbcc24 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 168 (FBSWorkspace.m:359)
54  FrontBoardServices            	0x00000001e2ff8530 __92-[FBSWorkspaceScenesClient createSceneWithIdentity:parameters:transitionContext:completion:]_block_invoke + 360 (FBSWorkspaceScenesClient.m:382)
55  libdispatch.dylib             	0x00000001d48a4fdc _dispatch_client_callout + 20 (object.m:560)
56  libdispatch.dylib             	0x00000001d48a8a5c _dispatch_block_invoke_direct + 264 (queue.c:496)
57  FrontBoardServices            	0x00000001e2fc6d40 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 52 (FBSSerialQueue.m:157)
58  FrontBoardServices            	0x00000001e2fc68dc -[FBSSerialQueue _targetQueue_performNextIfPossible] + 220 (FBSSerialQueue.m:181)
59  FrontBoardServices            	0x00000001e2fc9184 -[FBSSerialQueue _performNextFromRunLoopSource] + 28 (FBSSerialQueue.m:194)
60  CoreFoundation                	0x00000001cd35df34 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1957)
61  CoreFoundation                	0x00000001cd36a30c __CFRunLoopDoSource0 + 176 (CFRunLoop.c:2001)
62  CoreFoundation                	0x00000001cd2ee230 __CFRunLoopDoSources0 + 340 (CFRunLoop.c:2046)
63  CoreFoundation                	0x00000001cd303b8c __CFRunLoopRun + 836 (CFRunLoop.c:2953)
64  CoreFoundation                	0x00000001cd308ec0 CFRunLoopRunSpecific + 612 (CFRunLoop.c:3418)
65  GraphicsServices              	0x000000020735f368 GSEventRunModal + 164 (GSEvent.c:2196)
66  UIKitCore                     	0x00000001cf7fe86c -[UIApplication _run] + 888 (UIApplication.m:3754)
67  UIKitCore                     	0x00000001cf7fe4d0 UIApplicationMain + 340 (UIApplication.m:5344)
68  myApp               	0x0000000103216df4 main + 168 (main.m:23)
69  dyld                          	0x00000001ebb2a960 start + 2528 (dyldMain.cpp:1170)

Thread 1:
0   libsystem_kernel.dylib        	0x000000020abfd37c __psynch_cvwait + 8 (:-1)
1   libsystem_pthread.dylib       	0x000000021b32106c _pthread_cond_wait + 1232 (pthread_cond.c:636)
2   myApp               	0x00000001031ef7f0 essential_guardspec_analytics_analyticsThread + 67104
3   libsystem_pthread.dylib       	0x000000021b31a6cc _pthread_start + 148 (pthread.c:893)
4   libsystem_pthread.dylib       	0x000000021b319ba4 thread_start + 8 (:-1)

Thread 2:
0   libsystem_pthread.dylib       	0x000000021b319b90 start_wqthread + 0 (:-1)

Thread 3:
0   libsystem_kernel.dylib        	0x000000020abfd37c __psynch_cvwait + 8 (:-1)
1   libsystem_pthread.dylib       	0x000000021b32106c _pthread_cond_wait + 1232 (pthread_cond.c:636)
2   myApp               	0x0000000102e573c8 essential_guardspec_analytics_analyticsHeartbeatMarkerWrapperThread + 60
3   libsystem_pthread.dylib       	0x000000021b31a6cc _pthread_start + 148 (pthread.c:893)
4   libsystem_pthread.dylib       	0x000000021b319ba4 thread_start + 8 (:-1)

Thread 4:
0   libsystem_pthread.dylib       	0x000000021b319b90 start_wqthread + 0 (:-1)

Thread 5 name:
Thread 5:
0   libsystem_kernel.dylib        	0x000000020abfd5e0 __ulock_wait + 8 (:-1)
1   libdispatch.dylib             	0x00000001d48a59cc _dlock_wait + 56 (lock.c:326)
2   libdispatch.dylib             	0x00000001d48a5780 _dispatch_thread_event_wait_slow + 56 (lock.c:368)
3   libdispatch.dylib             	0x00000001d48b4860 __DISPATCH_WAIT_FOR_QUEUE__ + 368 (lock.h:330)
4   libdispatch.dylib             	0x00000001d48b440c _dispatch_sync_f_slow + 144 (queue.c:1769)
5   UIKitCore                     	0x00000001cf7feb40 __37-[_UIRemoteKeyboards startConnection]_block_invoke_3 + 156 (_UIRemoteKeyboards.m:1137)
6   CoreFoundation                	0x00000001cd2fc6c4 __invoking___ + 148 (:-1)
7   CoreFoundation                	0x00000001cd2a8b2c -[NSInvocation invoke] + 428 (NSForwarding.m:3377)
8   Foundation                    	0x00000001c76a6908 __NSXPCCONNECTION_IS_CALLING_OUT_TO_REPLY_BLOCK__ + 16 (NSXPCConnection.m:170)
9   Foundation                    	0x00000001c7677c90 -[NSXPCConnection _decodeAndInvokeReplyBlockWithEvent:sequence:replyInfo:] + 520 (NSXPCConnection.m:316)
10  Foundation                    	0x00000001c7c51244 __88-[NSXPCConnection _sendInvocation:orArguments:count:methodSignature:selector:withProxy:]_block_invoke_5 + 188 (NSXPCConnection.m:1662)
11  libxpc.dylib                  	0x000000021b37ad48 _xpc_connection_reply_callout + 124 (serializer.c:119)
12  libxpc.dylib                  	0x000000021b36db90 _xpc_connection_call_reply_async + 88 (connection.c:857)
13  libdispatch.dylib             	0x00000001d48a505c _dispatch_client_callout3 + 20 (object.m:586)
14  libdispatch.dylib             	0x00000001d48c2f58 _dispatch_mach_msg_async_reply_invoke + 344 (mach.c:2462)
15  libdispatch.dylib             	0x00000001d48ac56c _dispatch_lane_serial_drain + 376 (inline_internal.h:0)
16  libdispatch.dylib             	0x00000001d48ad214 _dispatch_lane_invoke + 436 (queue.c:3940)
17  libdispatch.dylib             	0x00000001d48b7e10 _dispatch_workloop_worker_thread + 652 (queue.c:6846)
18  libsystem_pthread.dylib       	0x000000021b319df8 _pthread_wqthread + 288 (pthread.c:2618)
19  libsystem_pthread.dylib       	0x000000021b319b98 start_wqthread + 8 (:-1)

Thread 6 name:
Thread 6:
0   libsystem_kernel.dylib        	0x000000020abfcaa8 mach_msg2_trap + 8 (:-1)
1   libsystem_kernel.dylib        	0x000000020ac0efc4 mach_msg2_internal + 80 (mach_msg.c:201)
2   libsystem_kernel.dylib        	0x000000020ac0f204 mach_msg_overwrite + 388 (mach_msg.c:0)
3   libsystem_kernel.dylib        	0x000000020abfcfec mach_msg + 24 (mach_msg.c:323)
4   CoreFoundation                	0x00000001cd302ad4 __CFRunLoopServiceMachPort + 160 (CFRunLoop.c:2622)
5   CoreFoundation                	0x00000001cd303d18 __CFRunLoopRun + 1232 (CFRunLoop.c:3005)
6   CoreFoundation                	0x00000001cd308ec0 CFRunLoopRunSpecific + 612 (CFRunLoop.c:3418)
7   Foundation                    	0x00000001c76470d4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212 (NSRunLoop.m:373)
8   Foundation                    	0x00000001c7646fbc -[NSRunLoop(NSRunLoop) runUntilDate:] + 64 (NSRunLoop.m:420)
9   UIKitCore                     	0x00000001cf93372c -[UIEventFetcher threadMain] + 436 (UIEventFetcher.m:1385)
10  Foundation                    	0x00000001c76605a8 __NSThread__start__ + 716 (NSThread.m:963)
11  libsystem_pthread.dylib       	0x000000021b31a6cc _pthread_start + 148 (pthread.c:893)
12  libsystem_pthread.dylib       	0x000000021b319ba4 thread_start + 8 (:-1)

Thread 7:
0   libsystem_pthread.dylib       	0x000000021b319b90 start_wqthread + 0 (:-1)

Thread 8 name:
Thread 8:
0   libobjc.A.dylib               	0x00000001c6572774 bool method_lists_contains_any > const>(WrappedPtr > const*, WrappedPtr > const*, objc_select... + 1272 (objc-runtime-new.mm:6369)
1   libobjc.A.dylib               	0x00000001c65728a8 bool objc::RRScanner::scanMethodLists > const>(WrappedPtr > const*, WrappedPtr > const*) + 124 (objc-runtime-new.mm:1086)
2   libobjc.A.dylib               	0x00000001c6559924 objc::scanner::Mixin::scanAddedClassImpl(objc_class*, bool) + 444 (objc-runtime-new.mm:911)
3   libobjc.A.dylib               	0x00000001c6556ca8 _finishInitializing(objc_class*, objc_class*) + 548 (objc-runtime-new.mm:944)
4   libobjc.A.dylib               	0x00000001c655b130 lockAndFinishInitializing(objc_class*, objc_class*) + 296 (objc-initialize.mm:419)
5   libobjc.A.dylib               	0x00000001c654e2ec initializeNonMetaClass + 756 (objc-initialize.mm:567)
6   libobjc.A.dylib               	0x00000001c6568150 initializeAndMaybeRelock(objc_class*, objc_object*, locker_mixin >&, bool) + 156 (objc-runtime-new.mm:2218)
7   libobjc.A.dylib               	0x00000001c654bcbc lookUpImpOrForward + 932 (objc-runtime-new.mm:2234)
8   libobjc.A.dylib               	0x00000001c65460c4 _objc_msgSend_uncached + 68
9   UserNotifications             	0x00000001ef3f1600 __44+[UNUserNotificationService serverInterface]_block_invoke + 3756 (UNUserNotificationService.m:115)
10  libdispatch.dylib             	0x00000001d48a4fdc _dispatch_client_callout + 20 (object.m:560)
11  libdispatch.dylib             	0x00000001d48a6828 _dispatch_once_callout + 32 (once.c:52)
12  UserNotifications             	0x00000001ef3eef9c +[UNUserNotificationService serverInterface] + 80 (once.h:85)
13  UserNotifications             	0x00000001ef3eecfc -[UNUserNotificationServiceConnection _queue_ensureConnection] + 128 (UNUserNotificationServiceConnection.m:719)
14  UserNotifications             	0x00000001ef3ee9c4 __109-[UNUserNotificationServiceConnection requestAuthorizationWithOptions:forBundleIdentifier:completionHandler:]_block_invoke + 44 (UNUserNotificationServiceConnection.m:78)
15  libdispatch.dylib             	0x00000001d48a34b4 _dispatch_call_block_and_release + 32 (init.c:1518)
16  libdispatch.dylib             	0x00000001d48a4fdc _dispatch_client_callout + 20 (object.m:560)
17  libdispatch.dylib             	0x00000001d48ac694 _dispatch_lane_serial_drain + 672 (inline_internal.h:2632)
18  libdispatch.dylib             	0x00000001d48ad214 _dispatch_lane_invoke + 436 (queue.c:3940)
19  libdispatch.dylib             	0x00000001d48b7e10 _dispatch_workloop_worker_thread + 652 (queue.c:6846)
20  libsystem_pthread.dylib       	0x000000021b319df8 _pthread_wqthread + 288 (pthread.c:2618)
21  libsystem_pthread.dylib       	0x000000021b319b98 start_wqthread + 8 (:-1)

Thread 9:
0   libsystem_pthread.dylib       	0x000000021b319b90 start_wqthread + 0 (:-1)

Thread 10 name:
Thread 10:
0   libsystem_kernel.dylib        	0x000000020abfd37c __psynch_cvwait + 8 (:-1)
1   libsystem_pthread.dylib       	0x000000021b32106c _pthread_cond_wait + 1232 (pthread_cond.c:636)
2   JavaScriptCore                	0x00000001e0a2243c scavenger_thread_main + 1164 (pas_scavenger.c:145)
3   libsystem_pthread.dylib       	0x000000021b31a6cc _pthread_start + 148 (pthread.c:893)
4   libsystem_pthread.dylib       	0x000000021b319ba4 thread_start + 8 (:-1)


Thread 0 crashed with ARM Thread State (64-bit):
    x0: 0x0000000000000000   x1: 0x393c423e42303c5e   x2: 0x9fea1bc14c5b30c7   x3: 0x000000000000001a
    x4: 0x0000000000000072   x5: 0x0000000000000058   x6: 0x0000000000000002   x7: 0x0000000000000000
    x8: 0xc0ca9d6f1d6c1f88   x9: 0x3f356290e293e078  x10: 0xa53ff4a8625cad50  x11: 0x000000028091c000
   x12: 0x00000000000000f0  x13: 0x00000000ffffffc7  x14: 0x00000000000007fb  x15: 0x000000009aa1c7fb
   x16: 0x000000021b283eb0  x17: 0x0000000228852618  x18: 0x0000000000000000  x19: 0x000000028091ca50
   x20: 0x9fea1bc14c5b30c7  x21: 0x0000000280a12894  x22: 0x393c423e42303c3e  x23: 0x393c423e42303c3e
   x24: 0x000000028091ca70  x25: 0x0000000029000018  x26: 0x0000000003104207  x27: 0x0000000000000000
   x28: 0x00000000000000a8   fp: 0x000000016d220280   lr: 0x90403c821b372be8
    sp: 0x000000016d2201d0   pc: 0x000000021b372bfc cpsr: 0x40001000
   esr: 0x92000004 (Data Abort) byte read Translation fault


Binary Images:
0x102bdc000 - 0x1046fbfff myApp arm64  <6ea5926eefda358bbf92d60b7bd008f0> /private/var/containers/Bundle/Application/B291236B-4043-4F72-8F61-0582DD21EB55/myApp.app/myApp
0x1c6544000 - 0x1c6587e1f libobjc.A.dylib arm64e   /usr/lib/libobjc.A.dylib
0x1c7605000 - 0x1c7f4efff Foundation arm64e  <07a92f05d8ec327eab3341db9f77ba16> /System/Library/Frameworks/Foundation.framework/Foundation
0x1cd288000 - 0x1cd66dfff CoreFoundation arm64e  <725e49f4653b39bf9a7a8a3250911ecb> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x1cf45d000 - 0x1d0c48fff UIKitCore arm64e  <59cbc9b530ae396ea269a986640001bc> /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore
0x1d48a1000 - 0x1d48e7fff libdispatch.dylib arm64e  <24db930d870b31ceac69534d7896b4a8> /usr/lib/system/libdispatch.dylib
0x1d509c000 - 0x1d5229fff Security arm64e   /System/Library/Frameworks/Security.framework/Security
0x1e092c000 - 0x1e1de7fff JavaScriptCore arm64e  <8c4289de9d14382386c8c749af87c8da> /System/Library/Frameworks/JavaScriptCore.framework/JavaScriptCore
0x1e2fb6000 - 0x1e305cfff FrontBoardServices arm64e  <2cec922bdd383ca7b826f3de9118f37a> /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices
0x1ebb15000 - 0x1ebb9808f dyld arm64e  <7b63c57361613b33a3a29944ba59722f> /usr/lib/dyld
0x1ef3ea000 - 0x1ef42cfff UserNotifications arm64e  <3e038f7b0cf43875a16781d2f84b3c1a> /System/Library/Frameworks/UserNotifications.framework/UserNotifications
0x20735e000 - 0x207366fff GraphicsServices arm64e  <5adda888f38735f787a7e01fcb9bb928> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x20abf8000 - 0x20ac32fe3 libsystem_kernel.dylib arm64e  <9daa5c2993e03768a3e1e139995dc4af> /usr/lib/system/libsystem_kernel.dylib
0x21b319000 - 0x21b324fff libsystem_pthread.dylib arm64e   /usr/lib/system/libsystem_pthread.dylib
0x21b35d000 - 0x21b39dfff libxpc.dylib arm64e  <9826b3aa0ca03ca4b664d86869fb33f2> /usr/lib/system/libxpc.dylib

EOF

Here is the suspected code that causes the crash

No. Consider this line:

Triggered by Thread:  6

So you want to look at the backtrace of thread 6:

Thread 6 name:   Dispatch queue: com.apple.usernotifications.UNUserNotificationServiceConnection
Thread 6 Crashed:
0   libxpc.dylib            … _xpc_dictionary_insert + 96
1   libxpc.dylib            … _xpc_dictionary_insert + 76
2   libxpc.dylib            … _xpc_dictionary_deserialize_apply + 68
3   libxpc.dylib            … _xpc_dictionary_apply_wire_f + 136
4   libxpc.dylib            … _xpc_dictionary_create_from_received_message + 224
5   libxpc.dylib            … _xpc_graph_unpack_impl + 236
6   libxpc.dylib            … xpc_receive_mach_msg + 280
7   libxpc.dylib            … _xpc_pipe_routine + 668
8   libxpc.dylib            … _xpc_interface_routine + 184
9   libxpc.dylib            … _xpc_look_up_endpoint + 268
10  libxpc.dylib            … _xpc_connection_bootstrap_look_up_slow + 288
11  libxpc.dylib            … _xpc_connection_init + 1004
12  libxpc.dylib            … _xpc_connection_activate_if_needed + 296
13  libxpc.dylib            … xpc_connection_resume + 92
14  UserNotifications       … -[UNUserNotificationServiceConnection _queue_ensureConnection] + 456
15  UserNotifications       … __109-[UNUserNotificationServiceConnection requestAuthorizationWithOptions:forBundleIdentifier:completionHandler:]_block_invoke + 44
16  libdispatch.dylib       … _dispatch_call_block_and_release + 32
17  libdispatch.dylib       … _dispatch_client_callout + 20
18  libdispatch.dylib       … _dispatch_lane_serial_drain + 672
19  libdispatch.dylib       … _dispatch_lane_invoke + 436
20  libdispatch.dylib       … _dispatch_workloop_worker_thread + 652
21  libsystem_pthread.dylib … _pthread_wqthread + 288
22  libsystem_pthread.dylib … start_wqthread + 8

You’re deep within XPC, handling what looks like something to do with user notifications, and have hit a memory management problem deserialising a message. I strongly suspect that’s caused by a memory management problem in your app and I recommend that you apply the standard memory debugging tools to see if you can make it more reproducible.

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

App got crashed upon the launch
 
 
Q