Salve-se de horas de depuração, porque acabei de desperdiçar duas semanas após a caça de bugs de aplicativos misteriosos. Acontece que, se você estiver adicionando muitas solicitações de notificação (consulte a resposta para obter mais detalhes) aoUNUserNotificationCenter, ele travará abruptamente o Springboard. Ainda não encontrei uma maneira de contornar isso, pois o mesmo código funcionou bem no iOS 9 e abaixo. Você também não pode adicionar solicitações de notificação em massa como antes. A seguir, apresentamos a falha que recebo todas as vezes (e centenas de usuários de aplicativos). Alguma idéia do que eu poderia fazer em vez de voltar a usarUILocalNotifications?

Incident Identifier: 17BC9D5B-AF74-4592-8427-038375C27AE7
CrashReporter Key:   a819553d1e72ee25a5ced9ddc79dbf00a7d3851f
Hardware Model:      iPad5,3
Process:             SpringBoard [2371]
Path:                /System/Library/CoreServices/SpringBoard.app/SpringBoard
Identifier:          com.apple.springboard
Version:             50 (1.0)
Code Type:           ARM-64 (Native)
Role:                Foreground
Parent Process:      launchd [1]
Coalition:           com.apple.springboard [71]


Date/Time:           2016-11-16 14:57:04.9159 +0400
Launch Time:         2016-11-16 14:49:20.9981 +0400
OS Version:          iPhone OS 10.0 (14A5309d)
Report Version:      104

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Triggered by Thread:  13

Filtered syslog:
None found

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   GraphicsServices                0x0000000182396198 GSEventRunModal + 180
6   UIKit                           0x00000001869327c8 -[UIApplication _run] + 664
7   UIKit                           0x000000018692d534 UIApplicationMain + 208
8   libdyld.dylib                   0x00000001805305b8 start + 4

Thread 1 name:  com.apple.uikit.eventfetch-thread
Thread 1:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   Foundation                      0x000000018142ce3c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6   Foundation                      0x000000018144d92c -[NSRunLoop(NSRunLoop) runUntilDate:] + 96
7   UIKit                           0x000000018727af2c -[UIEventFetcher threadMain] + 136
8   Foundation                      0x00000001815293ac __NSThread__start__ + 1024
9   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
10  libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
11  libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 2:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   Foundation                      0x000000018142ce3c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6   Foundation                      0x0000000181481584 -[NSRunLoop(NSRunLoop) run] + 88
7   UIKit                           0x0000000186f73298 -[UIStatusBarServerThread main] + 840
8   Foundation                      0x00000001815293ac __NSThread__start__ + 1024
9   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
10  libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
11  libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 3:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   Foundation                      0x000000018142ce3c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6   CoreBrightness                  0x0000000190ec5d10 -[BrightnessSystemClientInternal main] + 1392
7   Foundation                      0x00000001815293ac __NSThread__start__ + 1024
8   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
9   libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
10  libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 4:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   SpringBoard                     0x00000001001a0b00 0x1000f0000 + 723712
6   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
7   libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
8   libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 5 name:  com.apple.springboard.icongeneration
Thread 5:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   SpringBoard                     0x00000001001a0c00 0x1000f0000 + 723968
6   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
7   libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
8   libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 6 name:  com.apple.CoreMotion.MotionThread
Thread 6:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   CoreFoundation                  0x00000001809dd094 CFRunLoopRun + 112
6   CoreMotion                      0x0000000187762994 0x187702000 + 395668
7   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
8   libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
9   libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 7 name:  SBWiFiManager callback thread
Thread 7:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   Foundation                      0x000000018142ce3c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6   Foundation                      0x0000000181481584 -[NSRunLoop(NSRunLoop) run] + 88
7   SpringBoard                     0x0000000100215e44 0x1000f0000 + 1203780
8   Foundation                      0x00000001815293ac __NSThread__start__ + 1024
9   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
10  libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
11  libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 8:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   Foundation                      0x000000018142ce3c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6   HomeKit                         0x00000001913e8974 -[_HMLocationHandler createLocationManager] + 508
7   Foundation                      0x00000001815293ac __NSThread__start__ + 1024
8   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
9   libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
10  libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 9:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   Foundation                      0x000000018142ce3c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6   CoreBrightness                  0x0000000190ec5d10 -[BrightnessSystemClientInternal main] + 1392
7   Foundation                      0x00000001815293ac __NSThread__start__ + 1024
8   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
9   libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
10  libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 10 name:  CommonUtilities-WiFi-Thread
Thread 10:
0   libsystem_kernel.dylib          0x0000000180624194 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x0000000180624004 mach_msg + 72
2   CoreFoundation                  0x0000000180a61e8c __CFRunLoopServiceMachPort + 192
3   CoreFoundation                  0x0000000180a5faa8 __CFRunLoopRun + 1132
4   CoreFoundation                  0x000000018098f8d8 CFRunLoopRunSpecific + 444
5   CoreFoundation                  0x00000001809dd094 CFRunLoopRun + 112
6   CommonUtilities                 0x0000000182d10c20 0x182d0a000 + 27680
7   Foundation                      0x00000001815293ac __NSThread__start__ + 1024
8   libsystem_pthread.dylib         0x00000001807079ec _pthread_body + 240
9   libsystem_pthread.dylib         0x00000001807078fc _pthread_body + 0
10  libsystem_pthread.dylib         0x0000000180704ef8 thread_start + 4

Thread 11:
0   libsystem_kernel.dylib          0x0000000180642a88 __workq_kernreturn + 8
1   libsystem_pthread.dylib         0x000000018070549c _pthread_wqthread + 1440
2   libsystem_pthread.dylib         0x0000000180704ef0 start_wqthread + 4

Thread 12:
0   libsystem_kernel.dylib          0x0000000180642a88 __workq_kernreturn + 8
1   libsystem_pthread.dylib         0x000000018070549c _pthread_wqthread + 1440
2   libsystem_pthread.dylib         0x0000000180704ef0 start_wqthread + 4

Thread 13 name:  Dispatch queue: com.apple.frontboard.sqlite.database
Thread 13 Crashed:
0   libsystem_kernel.dylib          0x0000000180642014 __pthread_kill + 8
1   libsystem_pthread.dylib         0x00000001807094f0 pthread_kill + 112
2   libsystem_c.dylib               0x00000001805b64b8 abort + 140
3   libsystem_malloc.dylib          0x0000000180686a38 _nano_vet_and_size_of_live + 0
4   libsystem_malloc.dylib          0x0000000180687db8 nano_free + 220
5   libsqlite3.dylib                0x000000018103a5f8 0x180f95000 + 677368
6   libsqlite3.dylib                0x0000000180fbac9c 0x180f95000 + 154780
7   libsqlite3.dylib                0x0000000180fe6074 0x180f95000 + 331892
8   libsqlite3.dylib                0x0000000180fd70b0 sqlite3_step + 588
9   FrontBoard                      0x0000000190312ee4 __79-[_FBSqlitePreparedSimpleStatement executeWithBindings:resultRowHandler:error:]_block_invoke + 424
10  libdispatch.dylib               0x00000001804fd784 _dispatch_client_callout + 16
11  libdispatch.dylib               0x000000018050aca4 _dispatch_barrier_sync_f_invoke + 84
12  FrontBoard                      0x000000019031e0d0 -[FBSqliteDatabaseConnection performSyncWithDatabase:] + 80
13  FrontBoard                      0x0000000190312cbc -[_FBSqlitePreparedSimpleStatement executeWithBindings:resultRowHandler:error:] + 148
14  FrontBoard                      0x000000019035a4d8 -[FBSqliteApplicationDataStoreRepository _dbQueue_executeStatement:bindings:resultRowHandler:error:] + 80
15  FrontBoard                      0x000000019035a538 -[FBSqliteApplicationDataStoreRepository _dbQueue_executeStatement:bindings:resultRowHandler:] + 72
16  FrontBoard                      0x0000000190359374 -[FBSqliteApplicationDataStoreRepository _dbQueue_objectForKey:forApplication:] + 504
17  FrontBoard                      0x0000000190357a34 __81-[FBSqliteApplicationDataStoreRepository objectForKey:forApplication:withResult:]_block_invoke.44 + 40
18  libdispatch.dylib               0x00000001804fd784 _dispatch_client_callout + 16
19  libdispatch.dylib               0x000000018050aca4 _dispatch_barrier_sync_f_invoke + 84
20  FrontBoard                      0x0000000190357990 -[FBSqliteApplicationDataStoreRepository objectForKey:forApplication:withResult:] + 92
21  FrontBoard                      0x000000019038a5cc -[FBApplicationDataStoreInProcessRepositoryClient objectForKey:forApplication:withResult:checkPrefetch:] + 528
22  FrontBoardServices              0x00000001825c3e3c __40-[FBSApplicationDataStore objectForKey:]_block_invoke + 112
23  libdispatch.dylib               0x00000001804fd784 _dispatch_client_callout + 16
24  libdispatch.dylib               0x0000000180508f80 _dispatch_block_invoke_direct + 376
25  BaseBoard                       0x00000001825415a8 -[NSObject(BaseBoard) bs_performSynchronously:timeout:] + 144
26  FrontBoardServices              0x00000001825c3d7c -[FBSApplicationDataStore objectForKey:] + 224
27  FrontBoardServices              0x00000001825c4044 -[FBSApplicationDataStore safeObjectForKey:ofType:] + 32
28  FrontBoardServices              0x00000001825c41d4 -[FBSApplicationDataStore archivedObjectForKey:] + 64
29  FrontBoardServices              0x00000001825c4314 -[FBSApplicationDataStore safeArchivedObjectForKey:ofType:] + 32
30  UserNotificationsServer         0x000000019c52169c -[UNSPendingNotificationRepository _pendingNotificationDictionariesForBundleIdentifier:] + 140
31  UserNotificationsServer         0x000000019c5219d0 -[UNSPendingNotificationRepository setPendingNotificationRecords:forBundleIdentifier:] + 72
32  UserNotificationsServer         0x000000019c5249b4 -[UNSLocalNotificationClient _setPendingNotificationRecords:] + 500
33  UserNotificationsServer         0x000000019c5235c4 -[UNSLocalNotificationClient addPendingNotificationRecords:] + 1124
34  UserNotificationsServer         0x000000019c51d648 -[UNSNotificationSchedulingService _queue_addPendingNotificationRecords:forBundleIdentifier:] + 84
35  UserNotificationsServer         0x000000019c51c6b0 __108-[UNSNotificationSchedulingService addPendingNotificationRecords:forBundleIdentifier:withCompletionHandler:]_block_invoke + 36
36  libdispatch.dylib               0x00000001804fd7c4 _dispatch_call_block_and_release + 24
37  libdispatch.dylib               0x00000001804fd784 _dispatch_client_callout + 16
38  libdispatch.dylib               0x000000018050b880 _dispatch_queue_serial_drain + 928
39  libdispatch.dylib               0x0000000180500f6c _dispatch_queue_invoke + 652
40  libdispatch.dylib               0x000000018050bd7c _dispatch_queue_override_invoke + 360
41  libdispatch.dylib               0x000000018050d718 _dispatch_root_queue_drain + 572
42  libdispatch.dylib               0x000000018050d478 _dispatch_worker_thread3 + 124
43  libsystem_pthread.dylib         0x00000001807053f8 _pthread_wqthread + 1276
44  libsystem_pthread.dylib         0x0000000180704ef0 start_wqthread + 4

ATUALIZAR: Não parece ser baseado em um número específico de notificações. Aconteceu que ele era acionado com frequência, pois eu tinha cerca de 30 a 40 notificações registradas enquanto o aplicativo estava em segundo plano (notificação por push, atualização de aplicativo, aplicativo entrando em segundo plano etc.). enquanto isso, o aplicativo largaria o identificador de tarefa em segundo plano que ele mantinha. Expliquei isso em detalhes abaixo, juntamente com uma solução alternativa.

Este bug foi reconhecido pela Apple e marcado como duplicado de um bug relatado anteriormente. Espero que isso seja corrigido, pois continua causando problemas em certos casos extremos em que o aplicativo é iniciado em segundo plano e atinge o tempo limite logo após (durante a atualização do conteúdo em segundo plano).