Hello,
Our UEM Client has a crash where it is crashing when it is set as an auth delegate for another application (Let call the other app "Work"). When the device has Air Plane mode turned on, and the user clicks on the "Work" application it will launch the UEM client to authenticate the Work Application. When this happens the UEM client may crash. We have a few different symbolized call-stacks showing the same type of behavior:
1.
Hardware Model: iPad4,1
Code Type: ARM-64 (Native)
Role: Non UI
Parent Process: launchd [1]
OS Version: iPhone OS 12.2 (16E227)
Baseband Version: n/a
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000010
VM Region Info: 0x10 is not in any region. Bytes before following region: 4307369968
REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL
UNUSED SPACE AT START
--->
__TEXT 0000000100bd4000-0000000102314000 [ 23.2M] r-x/r-x SM=COW ...pp/UEM Client
Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [457]
Triggered by Thread: 1
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 CoreFoundation 0x00000002239837d8 generationCountFromListOfSources + 96
1 CoreFoundation 0x0000000223983894 generationCountFromListOfSources + 284
2 CoreFoundation 0x00000002239009f0 -[CFPrefsSearchListSource alreadylocked_generationCountFromListOfSources:count:] + 52
3 CoreFoundation 0x0000000223983c48 -[CFPrefsSearchListSource alreadylocked_getDictionary:] + 404
4 CoreFoundation 0x00000002238f571c -[CFPrefsSearchListSource alreadylocked_copyValueForKey:] + 152
5 CoreFoundation 0x00000002238f5660 -[CFPrefsSource copyValueForKey:] + 60
6 CoreFoundation 0x0000000223a40e88 __76-[_CFXPreferences copyAppValueForKey:identifier:container:configurationURL:]_block_invoke + 40
7 CoreFoundation 0x0000000223984ff4 __108-[_CFXPreferences+ 614388 (SearchListAdditions) withSearchListForIdentifier:container:cloudConfigurationURL:perform:]_block_invoke + 272
8 CoreFoundation 0x0000000223984a38 normalizeQuintuplet + 340
9 CoreFoundation 0x00000002238f3634 -[_CFXPreferences+ 17972 (SearchListAdditions) withSearchListForIdentifier:container:cloudConfigurationURL:perform:] + 108
10 CoreFoundation 0x00000002238f3ec0 -[_CFXPreferences copyAppValueForKey:identifier:container:configurationURL:] + 148
11 CoreFoundation 0x0000000223a432d0 _CFPreferencesCopyAppValueWithContainerAndConfiguration + 124
12 Foundation 0x000000022435ff6c -[NSUserDefaults+ 28524 (NSUserDefaults) objectForKey:] + 52
13 UEM Client 0x0000000101042f60 -[BUDSSettingsStore stringForKey:withEncryption:] + 4648800 (BUDSSettingsStore.m:130)
14 UEM Client 0x0000000101043a80 -[BUDSSettingsStore stringForKey:] + 4651648 (BUDSSettingsStore.m:151)
15 UEM Client 0x0000000100d8774c -[v3cgAlgP b2IKoj1w] + 1783628 (BBEMAClientSettings.m:201)
16 UEM Client 0x0000000100d561d8 -[BUDSRESTServiceProxy ASIHTTPRequestFromRoute:usingMethod:] + 1581528 (BUDSRESTServiceProxy.m:222)
17 UEM Client 0x0000000100d6f944 -[BUDSRESTServiceProxy senddata:method:binaryPayload:extraHeaders:successBlock:failureBlock:] + 1685828 (BUDSRESTServiceProxy.m:740)
18 UEM Client 0x0000000100d6eed8 -[BUDSRESTServiceProxy senddata:method:payload:extraHeaders:successBlock:failureBlock:] + 1683160 (BUDSRESTServiceProxy.m:720)
19 UEM Client 0x0000000100d7f890 -[BUDSRESTServiceProxy senddata:method:payload:successBlock:failureBlock:] + 1751184 (BUDSRESTServiceProxy.m:846)
20 UEM Client 0x0000000100d69d14 -[BUDSRESTServiceProxy put:payload:successBlock:failureBlock:] + 1662228 (BUDSRESTServiceProxy.m:669)
21 UEM Client 0x000000010114a580 -[BBEMAServer registerForPushNotificationsWithDeviceToken:successBlock:failureBlock:] + 5727616 (BBEMAServer.m:592)
22 UEM Client 0x00000001012167d4 -[BUDSPushNotificationController didRegisterForRemoteNotificationsWithDeviceToken:] + 6563796 (BUDSPushNotificationController.m:147)
23 UEM Client 0x00000001014f14a8 -[BUDSAppDelegate application:didRegisterForRemoteNotificationsWithDeviceToken:] + 9557160 (BUDSAppDelegate.m:550)
24 UEM Client 0x00000001016ace18 -[NSObject+ 11374104 (UIApplicationDelegate) gdApplication:didRegisterForRemoteNotificationsWithDeviceToken:] + 92
25 libdispatch.dylib 0x0000000223447a38 _dispatch_call_block_and_release + 24
26 libdispatch.dylib 0x00000002234487d4 _dispatch_client_callout + 16
27 libdispatch.dylib 0x00000002233f6004 _dispatch_main_queue_callback_4CF$VARIANT$mp + 1068
28 CoreFoundation 0x0000000223998ec0 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
29 CoreFoundation 0x0000000223993df8 __CFRunLoopRun + 1924
30 CoreFoundation 0x0000000223993354 CFRunLoopRunSpecific + 436
31 GraphicsServices 0x0000000225b9379c GSEventRunModal + 104
32 UIKitCore 0x000000024f779b68 UIApplicationMain + 212
33 UEM Client 0x0000000101528f8c main + 9785228 (main.m:19)
34 libdyld.dylib 0x00000002234598e0 start + 4
Thread 1 name: Dispatch queue: com.apple.root.user-initiated-qos
Thread 1 Crashed:
0 libobjc.A.dylib 0x0000000222bfa530 objc_msgSend + 16
1 Foundation 0x000000022437bc18 -[_NSXPCConnectionClassCache dealloc] + 60
2 Foundation 0x000000022437b8f4 -[NSXPCConnection dealloc] + 288
3 Foundation 0x00000002243799fc -[_NSXPCDistantObject dealloc] + 132
4 libobjc.A.dylib 0x0000000222bfcb9c (anonymous namespace)::AutoreleasePoolPage::pop+ 129948 (void*) + 672
5 libdispatch.dylib 0x00000002234487b4 _dispatch_last_resort_autorelease_pool_pop + 40
6 libdispatch.dylib 0x00000002233f9324 _dispatch_root_queue_drain + 1132
7 libdispatch.dylib 0x00000002233f98d0 _dispatch_worker_thread2 + 128
8 libsystem_pthread.dylib 0x00000002236281b4 _pthread_wqthread + 464
9 libsystem_pthread.dylib 0x000000022362acd4 start_wqthread + 42.
Hardware Model: iPad7,3
AppStoreTools: 10B63
AppVariant: 1:iPad7,3:12
Code Type: ARM-64 (Native)
Role: Non UI
Parent Process: launchd [1]
OS Version: iPhone OS 12.1.4 (16D57)
Baseband Version: n/a
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000010
VM Region Info: 0x10 is not in any region. Bytes before following region: 4297883632
REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL
UNUSED SPACE AT START
--->
__TEXT 00000001002c8000-00000001002cc000 [ 16K] r-x/r-x SM=COW ...pp/UEM Client
Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [416]
Triggered by Thread: 3
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libobjc.A.dylib 0x00000001a0774d8c objc_msgSend + 44
1 CoreData 0x00000001a41c11ec -[NSEntityDescription+ 1159660 (_NSInternalMethods) _createCachesAndOptimizeState] + 1148
2 CoreData 0x00000001a41f9a30 -[NSManagedObjectModel+ 1391152 (_NSInternalMethods) _createCachesAndOptimizeState] + 756
3 CoreData 0x00000001a41fa5f4 -[NSManagedObjectModel+ 1394164 (_NSInternalMethods) _setIsEditable:optimizationStyle:] + 384
4 CoreData 0x00000001a415853c -[NSPersistentStoreCoordinator initWithManagedObjectModel:] + 280
5 UEM Client 0x00000001004e37c8 -[BBEMAStorage initializeCoreData:] + 2209736 (BBEMAStorage.m:30)
6 UEM Client 0x00000001004e3690 -[BBEMAStorage init] + 2209424 (BBEMAStorage.m:21)
7 UEM Client 0x0000000100526bb4 -[BUDSAppDelegate application:didFinishLaunchingWithOptions:] + 2485172 (BUDSAppDelegate.m:250)
8 UEM Client 0x00000001006925f0 -[NSObject+ 3974640 (UIApplicationDelegate) gdApplication:didFinishLaunchingWithOptions:] + 280
9 UIKitCore 0x00000001ce33bca0 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 412
10 UIKitCore 0x00000001ce33d408 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 3340
11 UIKitCore 0x00000001ce342e54 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1552
12 UIKitCore 0x00000001cdbde93c __111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 784
13 UIKitCore 0x00000001cdbe75bc +[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 160
14 UIKitCore 0x00000001cdbde5b8 -[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 240
15 UIKitCore 0x00000001cdbdef58 -[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 1076
16 UIKitCore 0x00000001cdbdd058 __82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 772
17 UIKitCore 0x00000001cdbdcd04 -[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 432
18 UIKitCore 0x00000001cdbe1ec4 __125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 220
19 UIKitCore 0x00000001cdbe2e24 _performActionsWithDelayForTransitionContext + 112
20 UIKitCore 0x00000001cdbe1d7c -[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 248
21 UIKitCore 0x00000001cdbe6c68 -[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 368
22 UIKitCore 0x00000001ce34134c -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 540
23 UIKitCore 0x00000001cdf2c244 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 364
24 FrontBoardServices 0x00000001a3fc49d4 -[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 444
25 FrontBoardServices 0x00000001a3fcf79c __56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 260
26 FrontBoardServices 0x00000001a3fcee94 __40-[FBSWorkspace _performDelegateCallOut:]_block_invoke + 64
27 libdispatch.dylib 0x00000001a0fc6484 _dispatch_client_callout + 16
28 libdispatch.dylib 0x00000001a0f69e10 _dispatch_block_invoke_direct$VARIANT$mp + 224
29 FrontBoardServices 0x00000001a4003a9c __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 40
30 FrontBoardServices 0x00000001a4003728 -[FBSSerialQueue _performNext] + 416
31 FrontBoardServices 0x00000001a4003d44 -[FBSSerialQueue _performNextFromRunLoopSource] + 56
32 CoreFoundation 0x00000001a151e0e0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
33 CoreFoundation 0x00000001a151e060 __CFRunLoopDoSource0 + 88
34 CoreFoundation 0x00000001a151d944 __CFRunLoopDoSources0 + 176
35 CoreFoundation 0x00000001a1518810 __CFRunLoopRun + 1040
36 CoreFoundation 0x00000001a15180e0 CFRunLoopRunSpecific + 436
37 GraphicsServices 0x00000001a3791584 GSEventRunModal + 100
38 UIKitCore 0x00000001ce344c00 UIApplicationMain + 212
39 UEM Client 0x00000001005303ec main + 2524140 (main.m:19)
40 libdyld.dylib 0x00000001a0fd6bb4 start + 4
Thread 1:
0 libsystem_pthread.dylib 0x00000001a11abce8 start_wqthread + 0
Thread 2:
0 libsystem_pthread.dylib 0x00000001a11abce8 start_wqthread + 0
Thread 3 name: Dispatch queue: com.apple.NSXPCConnection.m-user.com.apple.usernotifications.usernotificationservice
Thread 3 Crashed:
0 libobjc.A.dylib 0x00000001a0774d70 objc_msgSend + 16
1 Foundation 0x00000001a1f1bc08 -[_NSXPCConnectionClassCache containsClass:] + 72
2 Foundation 0x00000001a1f1b98c -[NSXPCDecoder _validateAllowedClass:forKey:allowingInvocations:] + 380
3 Foundation 0x00000001a2153f74 _decodeObject + 924
4 Foundation 0x00000001a1f1b7ac -[NSXPCDecoder _decodeObjectOfClasses:atObject:] + 132
5 Foundation 0x00000001a217cedc _NSXPCSerializationDecodeTypedObjCValuesFromArray + 1716
6 Foundation 0x00000001a217d760 _NSXPCSerializationDecodeInvocationArgumentArray + 548
7 Foundation 0x00000001a1f727cc -[NSXPCDecoder __decodeXPCObject:allowingSimpleMessageSend:outInvocation:outArguments:outArgumentsMaxCount:outMethodSignature:outSelector:isReply:replySelector:interface:] + 1500
8 Foundation 0x00000001a1f1b490 -[NSXPCDecoder _decodeReplyFromXPCObject:forSelector:interface:] + 64
9 Foundation 0x00000001a1f1aee4 -[NSXPCConnection _decodeAndInvokeReplyBlockWithEvent:sequence:replyInfo:] + 220
10 Foundation 0x00000001a2152834 __88-[NSXPCConnection _sendInvocation:orArguments:count:methodSignature:selector:withProxy:]_block_invoke.351 + 564
11 libxpc.dylib 0x00000001a11ed514 _xpc_connection_reply_callout + 60
12 libxpc.dylib 0x00000001a11e0b28 _xpc_connection_call_reply_async + 88
13 libdispatch.dylib 0x00000001a0fc6504 _dispatch_client_callout3 + 16
14 libdispatch.dylib 0x00000001a0f7e898 _dispatch_mach_msg_async_reply_invoke$VARIANT$mp + 320
15 libdispatch.dylib 0x00000001a0f6da9c _dispatch_lane_serial_drain$VARIANT$mp + 284
16 libdispatch.dylib 0x00000001a0f6e74c _dispatch_lane_invoke$VARIANT$mp + 484
17 libdispatch.dylib 0x00000001a0f76eb8 _dispatch_workloop_worker_thread + 600
18 libsystem_pthread.dylib 0x00000001a11a90dc _pthread_wqthread + 312
19 libsystem_pthread.dylib 0x00000001a11abcec start_wqthread + 4If anyone has any idea what might be going on that would be helpful. It could be related to not making the call on the main thread, but it works for everyone else so I don't suspect that.
Thanks,
Justin
