AFNetworking AFNetworkReachabilityCallback Error ( Ipad IOS6.3) - ios

My APP is working good in (ipad 6.1 Simulator,ipad 6.0 Simulator and ipad 5.1 Simulator).
But after installed in my ipad, it's not work any more.
I use the Organizer-Dervices to debug the error, and get the error messages:
Console:
Jul 31 21:55:27 Sandy ReportCrash[937] : Formulating crash report for process BenefitPad[781]
Jul 31 21:55:27 Sandy ReportCrash[937] : libMobileGestalt copySystemVersionDictionaryValue: Could not lookup ReleaseType from system version dictionary
Dervice Logs:
Incident Identifier: F6306353-BEF8-4626-8FA1-17F8C829AEE4
CrashReporter Key: 1a786173c1c72ae5d44172b3d641feee8e91a4af
Hardware Model: iPad3,3
Process: BenefitPad [778]
Path: /var/mobile/Applications/D733430C-510D-4D2A-9D88-6361A6074485/BenefitPad.app/BenefitPad
Identifier: BenefitPad
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2013-07-31 19:46:51.989 +0800
OS Version: iOS 6.1.3 (10B329)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x75417466
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libobjc.A.dylib 0x3935c52c objc_retain + 12
1 BenefitPad 0x001571fe 0xe8000 + 455166
2 CoreFoundation 0x3140c034 _CFXNotificationPost + 1424
3 Foundation 0x31d22594 -[NSNotificationCenter postNotificationName:object:userInfo:] + 68
4 Foundation 0x31d26056 -[NSNotificationCenter postNotificationName:object:] + 26
5 BenefitPad 0x0010cc12 0xe8000 + 150546
6 BenefitPad 0x000fe2da 0xe8000 + 90842
7 BenefitPad 0x00134cd8 0xe8000 + 314584
8 BenefitPad 0x00135d02 0xe8000 + 318722
9 libdispatch.dylib 0x3977711c _dispatch_call_block_and_release + 8
10 libdispatch.dylib 0x397764b4 _dispatch_client_callout + 20
11 libdispatch.dylib 0x3977b1b8 _dispatch_main_queue_callback_4CF$VARIANT$mp + 220
12 CoreFoundation 0x3148ef36 __CFRunLoopRun + 1286
13 CoreFoundation 0x31401eb8 CFRunLoopRunSpecific + 352
14 CoreFoundation 0x31401d44 CFRunLoopRunInMode + 100
15 GraphicsServices 0x34fb62e6 GSEventRunModal + 70
16 UIKit 0x333172fc UIApplicationMain + 1116
17 BenefitPad 0x000fd92c 0xe8000 + 88364
18 BenefitPad 0x000e9aec 0xe8000 + 6892
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x3984d648 kevent64 + 24
1 libdispatch.dylib 0x3977d974 _dispatch_mgr_invoke + 792
2 libdispatch.dylib 0x3977d654 _dispatch_mgr_thread$VARIANT$mp + 32
Thread 2 name: WebThread
Thread 2:
0 libsystem_kernel.dylib 0x3984ceb4 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3984d048 mach_msg + 36
2 CoreFoundation 0x31490040 __CFRunLoopServiceMachPort + 124
3 CoreFoundation 0x3148ed9e __CFRunLoopRun + 878
4 CoreFoundation 0x31401eb8 CFRunLoopRunSpecific + 352
5 CoreFoundation 0x31401d44 CFRunLoopRunInMode + 100
6 WebCore 0x373f1500 _ZL12RunWebThreadPv + 440
7 libsystem_c.dylib 0x397b630e _pthread_start + 306
8 libsystem_c.dylib 0x397b61d4 thread_start + 4
Thread 3:
0 libsystem_kernel.dylib 0x3985dd98 __workq_kernreturn + 8
1 libsystem_c.dylib 0x397abcf6 _pthread_workq_return + 14
2 libsystem_c.dylib 0x397aba12 _pthread_wqthread + 362
3 libsystem_c.dylib 0x397ab8a0 start_wqthread + 4
Thread 4:
0 libsystem_kernel.dylib 0x3985dd98 __workq_kernreturn + 8
1 libsystem_c.dylib 0x397abcf6 _pthread_workq_return + 14
2 libsystem_c.dylib 0x397aba12 _pthread_wqthread + 362
3 libsystem_c.dylib 0x397ab8a0 start_wqthread + 4
And the error is likely occurred in the method(File: AFHTTPClient.m Line:309):
static void AFNetworkReachabilityCallback(SCNetworkReachabilityRef __unused target, SCNetworkReachabilityFlags flags, void *info) {
AFNetworkReachabilityStatus status = AFNetworkReachabilityStatusForFlags(flags);
AFNetworkReachabilityStatusBlock block = (__bridge AFNetworkReachabilityStatusBlock)info;
if (block) {
block(status);
}
dispatch_async(dispatch_get_main_queue(), ^{
NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter];
[notificationCenter postNotificationName:AFNetworkingReachabilityDidChangeNotification object:nil userInfo:[NSDictionary dictionaryWithObject:[NSNumber numberWithInteger:status] forKey:AFNetworkingReachabilityNotificationStatusItem]];
});
}
Thanks for your help.

I have fixed this.
The reason is as a property of 'NSDecimalNumber', after I change the propery from 'NSDecimalNumber' to 'NSString', it's work well.
This issue is nothing about 'AFNetworking'.

Related

iOS app weird crash in background

I need help.
I'm working on an old iOS app written in Objective-c. It was released in 2014 and now I have migrated the project to Xcode 8. After migration everything works as expected except weird crash when app is in background(not immediately but after some time). It's hard to debug because crash occurs only when device is disconnected from Xcode. I have checked device logs and it seems like it's core data crash:
Incident Identifier: BDD70C46-6573-44A7-85AB-620E6FBA207F
CrashReporter Key: c04f591f9e0cc9d1991ce10e33ebcabd56affbe6
Hardware Model: iPhone8,4
Process: myApp [17746]
Path: /private/var/containers/Bundle/Application/878DB803-1DA5-46D7-8B50-655D43A5C28D/myApp.app/myApp
Identifier: com.example.myApp
Version: 2 (1.0.2)
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd [1]
Coalition: com.example.myApp [16959]
Date/Time: 2017-09-19 14:34:57.1435 +0300
Launch Time: 2017-09-19 14:31:38.0853 +0300
OS Version: iPhone OS 10.3.3 (14G60)
Report Version: 104
Exception Type: EXC_CRASH (SIGKILL)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Reason: Namespace <0xF>, Code 0x8badf00d
Triggered by Thread: 0
Filtered syslog:
None found
Thread 0 name: Dispatch queue: SQLQueue 0x100724310 for myApp.sqlite
Thread 0 Crashed:
0 libsqlite3.dylib 0x000000018f36d818 0x18f361000 + 51224
1 libsqlite3.dylib 0x000000018f36c9a4 0x18f361000 + 47524
2 libsqlite3.dylib 0x000000018f36c9a4 0x18f361000 + 47524
3 libsqlite3.dylib 0x000000018f36c2c4 0x18f361000 + 45764
4 libsqlite3.dylib 0x000000018f36bf24 0x18f361000 + 44836
5 CoreData 0x000000019113e0b0 -[NSSQLiteConnection prepareSQLStatement:] + 468
6 CoreData 0x000000019125f178 -[NSSQLiteConnection updateRow:forRequestContext:] + 492
7 CoreData 0x0000000191307f28 _writeChangesForSaveRequest + 1128
8 CoreData 0x0000000191309584 _executeSaveChangesRequest + 388
9 CoreData 0x00000001912ff5f0 -[NSSQLSaveChangesRequestContext executeRequestUsingConnection:] + 44
10 CoreData 0x00000001912170c4 __52-[NSSQLDefaultConnectionManager handleStoreRequest:]_block_invoke + 256
11 libdispatch.dylib 0x0000000100455a10 0x100454000 + 6672
12 libdispatch.dylib 0x00000001004625bc 0x100454000 + 58812
13 CoreData 0x0000000191216f64 -[NSSQLDefaultConnectionManager handleStoreRequest:] + 208
14 CoreData 0x00000001912d9824 -[NSSQLCoreDispatchManager routeStoreRequest:] + 272
15 CoreData 0x000000019124475c -[NSSQLCore dispatchRequest:withRetries:] + 236
16 CoreData 0x0000000191240578 -[NSSQLCore processSaveChanges:forContext:] + 200
17 CoreData 0x0000000191144f10 -[NSSQLCore executeRequest:withContext:error:] + 724
18 CoreData 0x000000019122384c __65-[NSPersistentStoreCoordinator executeRequest:withContext:error:]_block_invoke + 3492
19 CoreData 0x000000019121c0f0 -[NSPersistentStoreCoordinator _routeHeavyweightBlock:] + 276
20 CoreData 0x0000000191144adc -[NSPersistentStoreCoordinator executeRequest:withContext:error:] + 408
21 CoreData 0x000000019116597c -[NSManagedObjectContext save:] + 2548
22 myApp 0x00000001000cd0dc 0x1000c0000 + 53468
23 myApp 0x00000001000cbc24 0x1000c0000 + 48164
24 CoreLocation 0x00000001970ee828 0x1970de000 + 67624
25 CoreLocation 0x00000001970edfcc 0x1970de000 + 65484
26 CoreLocation 0x00000001970e11d8 0x1970de000 + 12760
27 CoreFoundation 0x000000018ee1930c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 20
28 CoreFoundation 0x000000018ee18b28 __CFRunLoopDoBlocks + 288
29 CoreFoundation 0x000000018ee16e1c __CFRunLoopRun + 1884
30 CoreFoundation 0x000000018ed46da4 CFRunLoopRunSpecific + 424
31 GraphicsServices 0x00000001907b1074 GSEventRunModal + 100
32 UIKit 0x0000000195001c9c UIApplicationMain + 208
33 myApp 0x00000001000e4574 0x1000c0000 + 148852
34 libdyld.dylib 0x000000018dd5559c start + 4
Thread 1 name: Dispatch queue: BKSProcessAssertionClient
Thread 1:
0 libsystem_kernel.dylib 0x000000018de47224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018de4709c mach_msg + 72
2 libdispatch.dylib 0x000000010046d37c 0x100454000 + 103292
3 libdispatch.dylib 0x000000010046d780 0x100454000 + 104320
4 libxpc.dylib 0x000000018df60edc xpc_connection_send_message_with_reply_sync + 196
5 BaseBoard 0x000000019095a944 -[BSXPCMessage sendSynchronouslyToConnection:error:] + 76
6 BaseBoard 0x0000000190957148 -[BSBaseXPCClient _sendMessage:withReplyHandler:waitForReply:waitDuration:] + 436
7 AssertionServices 0x00000001909a17c4 -[BKSProcessAssertionClient _assertionQueue_sendEvent:forMessageType:responseHandler:] + 136
8 AssertionServices 0x00000001909a0f78 -[BKSProcessAssertionClient sendCreateAssertion:] + 108
9 AssertionServices 0x00000001909a0968 -[BKSProcessAssertion _clientQueue_acquireAssertion] + 312
10 libdispatch.dylib 0x0000000100455a50 0x100454000 + 6736
11 libdispatch.dylib 0x0000000100455a10 0x100454000 + 6672
12 libdispatch.dylib 0x00000001004632e8 0x100454000 + 62184
13 libdispatch.dylib 0x0000000100459634 0x100454000 + 22068
14 libdispatch.dylib 0x0000000100465630 0x100454000 + 71216
15 libdispatch.dylib 0x000000010046539c 0x100454000 + 70556
16 libsystem_pthread.dylib 0x000000018df2b100 _pthread_wqthread + 1096
17 libsystem_pthread.dylib 0x000000018df2acac start_wqthread + 4
Thread 2 name: Dispatch queue: com.apple.CoreLocation.ConnectionClient.0x17013b6c0.events
Thread 2:
0 libsystem_kernel.dylib 0x000000018de47278 semaphore_timedwait_trap + 8
1 libdispatch.dylib 0x000000010047f238 0x100454000 + 176696
2 libdispatch.dylib 0x0000000100467db8 0x100454000 + 81336
3 CoreLocation 0x00000001970e1078 0x1970de000 + 12408
4 CoreLocation 0x00000001970e6118 0x1970de000 + 33048
5 CoreLocation 0x00000001970e5f18 0x1970de000 + 32536
6 CoreLocation 0x0000000197131e88 0x1970de000 + 343688
7 CoreLocation 0x000000019712e4f0 0x1970de000 + 328944
8 CoreLocation 0x000000019712e414 0x1970de000 + 328724
9 CoreLocation 0x000000019712fa80 0x1970de000 + 334464
10 libxpc.dylib 0x000000018df5f84c _xpc_connection_call_event_handler + 68
11 libxpc.dylib 0x000000018df5d358 _xpc_connection_mach_event + 1448
12 libdispatch.dylib 0x0000000100455ae0 0x100454000 + 6880
13 libdispatch.dylib 0x00000001004599d8 0x100454000 + 23000
14 libdispatch.dylib 0x0000000100463128 0x100454000 + 61736
15 libdispatch.dylib 0x0000000100458da0 0x100454000 + 19872
16 libdispatch.dylib 0x0000000100463128 0x100454000 + 61736
17 libdispatch.dylib 0x0000000100459634 0x100454000 + 22068
18 libdispatch.dylib 0x0000000100463128 0x100454000 + 61736
19 libdispatch.dylib 0x0000000100459634 0x100454000 + 22068
20 libdispatch.dylib 0x0000000100464358 0x100454000 + 66392
21 libdispatch.dylib 0x000000010046c57c 0x100454000 + 99708
22 libsystem_pthread.dylib 0x000000018df2afbc _pthread_wqthread + 772
23 libsystem_pthread.dylib 0x000000018df2acac start_wqthread + 4
Thread 3 name: com.apple.uikit.eventfetch-thread
Thread 3:
0 libsystem_kernel.dylib 0x000000018de47224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018de4709c mach_msg + 72
2 CoreFoundation 0x000000018ee18e90 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018ee16ae4 __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018ed46da4 CFRunLoopRunSpecific + 424
5 Foundation 0x000000018f861db4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6 Foundation 0x000000018f882b84 -[NSRunLoop(NSRunLoop) runUntilDate:] + 96
7 UIKit 0x000000019598b830 -[UIEventFetcher threadMain] + 136
8 Foundation 0x000000018f95f318 __NSThread__start__ + 996
9 libsystem_pthread.dylib 0x000000018df2d68c _pthread_body + 240
10 libsystem_pthread.dylib 0x000000018df2d59c _pthread_body + 0
11 libsystem_pthread.dylib 0x000000018df2acb4 thread_start + 4
Thread 4:
0 libsystem_pthread.dylib 0x000000018df2aca8 start_wqthread + 0
Thread 5 name: com.apple.NSURLConnectionLoader
Thread 5:
0 libsystem_kernel.dylib 0x000000018de47224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018de4709c mach_msg + 72
2 CoreFoundation 0x000000018ee18e90 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018ee16ae4 __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018ed46da4 CFRunLoopRunSpecific + 424
5 CFNetwork 0x000000018f553df4 +[NSURLConnection(Loader) _resourceLoadLoop:] + 404
6 Foundation 0x000000018f95f318 __NSThread__start__ + 996
7 libsystem_pthread.dylib 0x000000018df2d68c _pthread_body + 240
8 libsystem_pthread.dylib 0x000000018df2d59c _pthread_body + 0
9 libsystem_pthread.dylib 0x000000018df2acb4 thread_start + 4
Thread 6 name: GAIThread
Thread 6:
0 libsystem_kernel.dylib 0x000000018de47224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018de4709c mach_msg + 72
2 CoreFoundation 0x000000018ee18e90 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018ee16ae4 __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018ed46da4 CFRunLoopRunSpecific + 424
5 Foundation 0x000000018f861db4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6 Foundation 0x000000018f8b6704 -[NSRunLoop(NSRunLoop) run] + 88
7 myApp 0x0000000100120398 0x1000c0000 + 394136
8 Foundation 0x000000018f95f318 __NSThread__start__ + 996
9 libsystem_pthread.dylib 0x000000018df2d68c _pthread_body + 240
10 libsystem_pthread.dylib 0x000000018df2d59c _pthread_body + 0
11 libsystem_pthread.dylib 0x000000018df2acb4 thread_start + 4
Thread 7:
0 libsystem_pthread.dylib 0x000000018df2aca8 start_wqthread + 0
Thread 8:
0 libsystem_pthread.dylib 0x000000018df2aca8 start_wqthread + 0
But in major cases crash report looks like:
Incident Identifier: D5D6C3C6-7EB7-4E2C-901C-7203943BD722
CrashReporter Key: c04f591f9e0cc9d1991ce10e33ebcabd56affbe6
Hardware Model: iPhone8,4
Process: myApp [17444]
Path: /private/var/containers/Bundle/Application/93AB2A15-0C65-47D5-BE24-FB298DC396E0/myApp.app/myApp
Identifier: com.example.myApp
Version: 2 (1.0.2)
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd [1]
Coalition: com.example.myApp [16449]
Date/Time: 2017-09-19 12:41:45.3051 +0300
Launch Time: 2017-09-19 12:24:22.7861 +0300
OS Version: iPhone OS 10.3.3 (14G60)
Report Version: 104
Exception Type: EXC_CRASH (SIGKILL)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Reason: Namespace <0xF>, Code 0x8badf00d
Triggered by Thread: 0
Filtered syslog:
None found
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x000000018de47224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018de4709c mach_msg + 72
2 CoreFoundation 0x000000018ee18e90 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018ee16ae4 __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018ed46da4 CFRunLoopRunSpecific + 424
5 GraphicsServices 0x00000001907b1074 GSEventRunModal + 100
6 UIKit 0x0000000195001c9c UIApplicationMain + 208
7 myApp 0x0000000100031bb8 0x10000c000 + 154552
8 libdyld.dylib 0x000000018dd5559c start + 4
Thread 1 name: com.apple.uikit.eventfetch-thread
Thread 1:
0 libsystem_kernel.dylib 0x000000018de47224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018de4709c mach_msg + 72
2 CoreFoundation 0x000000018ee18e90 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018ee16ae4 __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018ed46da4 CFRunLoopRunSpecific + 424
5 Foundation 0x000000018f861db4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6 Foundation 0x000000018f882b84 -[NSRunLoop(NSRunLoop) runUntilDate:] + 96
7 UIKit 0x000000019598b830 -[UIEventFetcher threadMain] + 136
8 Foundation 0x000000018f95f318 __NSThread__start__ + 996
9 libsystem_pthread.dylib 0x000000018df2d68c _pthread_body + 240
10 libsystem_pthread.dylib 0x000000018df2d59c _pthread_body + 0
11 libsystem_pthread.dylib 0x000000018df2acb4 thread_start + 4
Thread 2 name: com.twitter.crashlytics.ios.MachExceptionServer
Thread 2:
0 libsystem_kernel.dylib 0x000000018de47224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018de4709c mach_msg + 72
2 myApp 0x000000010008d6a0 0x10000c000 + 530080
3 libsystem_pthread.dylib 0x000000018df2d68c _pthread_body + 240
4 libsystem_pthread.dylib 0x000000018df2d59c _pthread_body + 0
5 libsystem_pthread.dylib 0x000000018df2acb4 thread_start + 4
Thread 3 name: com.apple.NSURLConnectionLoader
Thread 3:
0 libsystem_kernel.dylib 0x000000018de47224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018de4709c mach_msg + 72
2 CoreFoundation 0x000000018ee18e90 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018ee16ae4 __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018ed46da4 CFRunLoopRunSpecific + 424
5 CFNetwork 0x000000018f553df4 +[NSURLConnection(Loader) _resourceLoadLoop:] + 404
6 Foundation 0x000000018f95f318 __NSThread__start__ + 996
7 libsystem_pthread.dylib 0x000000018df2d68c _pthread_body + 240
8 libsystem_pthread.dylib 0x000000018df2d59c _pthread_body + 0
9 libsystem_pthread.dylib 0x000000018df2acb4 thread_start + 4
Thread 4 name: GAIThread
Thread 4:
0 libsystem_kernel.dylib 0x000000018de47224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018de4709c mach_msg + 72
2 CoreFoundation 0x000000018ee18e90 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018ee16ae4 __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018ed46da4 CFRunLoopRunSpecific + 424
5 Foundation 0x000000018f861db4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6 Foundation 0x000000018f8b6704 -[NSRunLoop(NSRunLoop) run] + 88
7 myApp 0x000000010006d9dc 0x10000c000 + 399836
8 Foundation 0x000000018f95f318 __NSThread__start__ + 996
9 libsystem_pthread.dylib 0x000000018df2d68c _pthread_body + 240
10 libsystem_pthread.dylib 0x000000018df2d59c _pthread_body + 0
11 libsystem_pthread.dylib 0x000000018df2acb4 thread_start + 4
Thread 5:
0 libsystem_pthread.dylib 0x000000018df2aca8 start_wqthread + 0
Thread 6:
0 libsystem_pthread.dylib 0x000000018df2aca8 start_wqthread + 0
Thread 7:
0 libsystem_pthread.dylib 0x000000018df2aca8 start_wqthread + 0
Thread 8:
0 libsystem_pthread.dylib 0x000000018df2aca8 start_wqthread + 0
Thread 9:
0 libsystem_pthread.dylib 0x000000018df2aca8 start_wqthread + 0
Maybe someone had a similar issue and have some suggestions?
One thing that's odd is that you say this happens in the background, but the crashes are happening when the app is in the foreground as far as the system is concerned:
Role: Foreground
So, that's confusing.
Just wild guessing, I'd look at things like memory corruption/using released objects (especially if this is non-ARC code), async code like networking requests or timer callbacks jumping into released code, doing things like UI on a thread that's not the main thread (if you can run under Xcode 9, the runtime thread diagnostics will help a lot with this.) Even with Xc8, look at your project's scheme and the memory debugging options available under the Run configuration. Those could help.
Check out the running system log on the device. You don't need to be debugging with Xcode to see that. Just go to the Devices window and the system console will be near the bottom. You may need to reveal it. That system log may give a clue.
If you're using manual retain/release, double check any code that gets hit in the time frame of the crash. Keep in mind that those types of crashes happen after the problem occurs, so where you see the crash may have little bearing on where the actual problem is, and the crash location may fluctuate, especially on different devices.
Maybe diff the pre-Xcode 8 code and the current code to double-check any changes you've made. My guess is that you introduced a memory issue when updating the code for Xcode 8.
UPDATE:
Sorry, just noticed the termination reason.
This may help:
The exception code 0x8badf00d indicates that an application has been
terminated by iOS because a watchdog timeout occurred. The application
took too long to launch, terminate, or respond to system events. One
common cause of this is doing synchronous networking on the main
thread. Whatever operation is on Thread 0: needs to be moved to a
background thread, or processed differently, so that it does not block
the main thread.
Make sure as you're going into the background you're not doing anything that will take a long time, use a background task if needed, and don't do anything like OpenGL calls from the background. Since the crash report says you're in the Foreground, I wonder if you're taking too long going into the background and Springboard is killing your app. The system log will confirm that.

SIGSEGV crash in iOS (Objective-C) at -[VPXDecoder decode:rawOutFrame:inFrameSize:frameInfo:]

Incident Identifier: 64E7437E-C37F-425C-8582-18A14C43F95A
CrashReporter Key: b90a1226375d6bce87d7c4fc6288d7951058aec4
Hardware Model: iPad2,1
Process: LolMess [428]
Path: /private/var/mobile/Containers/Bundle/Application/B1A322EE-F140-49CB-B1D2-84601F0BE962/LolMess.app/LolMess
Identifier: com.mobulous.LolMess
Version: 1 (1.0)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2016-03-14 17:55:49.49 +0530
Launch Time: 2016-03-14 17:42:36.36 +0530
OS Version: iOS 9.2.1 (13D15)
Report Version: 104
**Exception Type: EXC_BAD_ACCESS (SIGSEGV)**
Exception Subtype: KERN_INVALID_ADDRESS at 0x0002c9f0
Triggered by Thread: 24
Filtered syslog:
None found
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libsystem_kernel.dylib 0x245c0c24 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x245c0a28 mach_msg + 40
2 CoreFoundation 0x24903354 __CFRunLoopServiceMachPort + 136
3 CoreFoundation 0x249016dc __CFRunLoopRun + 1036
4 CoreFoundation 0x24854bf8 CFRunLoopRunSpecific + 520
5 CoreFoundation 0x248549e4 CFRunLoopRunInMode + 108
6 GraphicsServices 0x25aa0ac8 GSEventRunModal + 160
7 UIKit 0x28ae4ba0 UIApplicationMain + 144
8 LolMess 0x002171d0 main (main.m:15)
9 libdyld.dylib 0x24503872 start + 2
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x245d6320 kevent_qos + 24
1 libdispatch.dylib 0x244ce098 _dispatch_mgr_invoke + 256
2 libdispatch.dylib 0x244cddf6 _dispatch_mgr_thread$VARIANT$mp + 38
Thread 22:
0 libsystem_kernel.dylib 0x245c0c74 semaphore_wait_trap + 8
1 LolMess 0x0078ea9e thread_encoding_proc + 510
2 libsystem_pthread.dylib 0x2467985a _pthread_body + 138
3 libsystem_pthread.dylib 0x246797ce _pthread_start + 110
4 libsystem_pthread.dylib 0x24677724 thread_start + 8
Thread 23:
0 libsystem_kernel.dylib 0x245c0c74 semaphore_wait_trap + 8
1 LolMess 0x0078efda thread_loopfilter + 54
2 libsystem_pthread.dylib 0x2467985a _pthread_body + 138
3 libsystem_pthread.dylib 0x246797ce _pthread_start + 110
4 libsystem_pthread.dylib 0x24677724 thread_start + 8
Thread 24 Crashed:
0 LolMess 0x00781380 vp8_copy_mem16x16_neon + 16
1 LolMess 0x0077f828 vp8_build_inter16x16_predictors_mb + 188
2 LolMess 0x0077fa76 vp8_build_inter_predictors_mb + 414
3 LolMess 0x007a9f00 vp8_decode_frame + 11088
4 LolMess 0x007ab088 vp8dx_receive_compressed_data + 276
5 LolMess 0x007a537e vp8_decode + 1114
6 LolMess 0x007776ae vpx_codec_decode + 62
7 LolMess 0x007363ca -[VPXDecoder decode:rawOutFrame:inFrameSize:frameInfo:] (VPXDecoder.m:105)
8 LolMess 0x006f93ea -[RTPVideoHandler getDecodedVideoFrame:frameInfo:forStream:withOptions:] (RTPVideoHandler.m:1145)
9 LolMess 0x006f95ba -[RTPVideoHandler getDecodedVideoFrame:] (RTPVideoHandler.m:1184)
10 LolMess 0x00603b20 -[SCVideoCallController run:] (SCVideoCallController.m:896)
11 Foundation 0x25159164 __NSThread__start__ + 1148
12 libsystem_pthread.dylib 0x2467985a _pthread_body + 138
13 libsystem_pthread.dylib 0x246797ce _pthread_start + 110
14 libsystem_pthread.dylib 0x24677724 thread_start + 8
Error Formulating Crash Report:
Failed while requesting activity/breadcrumb diagnostics
Using C2callSdk in app
Looks like you are trying to access a object already released from memory.
Check it by Enabling NSZombie objects, that will make compiler to stop at the line which causing crash.

A very interesting crash log with Exception Type:"EXC_CRASH (SIGSEGV)"

  Firstly, the desymbolicated crash log is at the bottom. I cannot post all the content out of privacy reason. However the first 3 threads log is enough I thought, if you really want that please leave a message.
  And here is the thing, depending on this article Understanding iOS Exception Types | 5Neo.Be5Neo.Be, the mach exception type -- EXC_CRASH -- is not usual following with the C signal SIGSEGV (which means access an address you don't own).
  So I want to know what reason or when will EXC_CRASH (SIGSEGV) appear?
  Second question is if this crash is actually trigger by Thread 0 as the log said. And if it's ture, then what does
"__NSThreadPerformPerform"
and
"__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__"
means?
  What action is system doing? By the way, __NSThreadPerformPerform will appear when App call "performSelector:" method according to this answer -- iphone - SIGABRT crash on CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION - Stack Overflow.
Thanks.
-- Crash log is here: --
{"name":"XXXApp","bug_type":"109","os_version":"iPhone OS 7.1.1 (11D201)","bundleID":"com.xxx","version":"6.7.1.0 (6.7.1)","app_name":"XXXApp"}
Incident Identifier: EC2DC883-C0DB-4FD6-81FB-237626598366
CrashReporter Key: d5c091bc35732df06fcaf41e5786833159b04ea5
Hardware Model: iPhone5,2
Process: XXXApp [1912]
Path: /var/mobile/Applications/4E3E131C-5847-4B61-A0E0-D350830C1693/BaiduBoxApp.app/XXXApp
Identifier: com.xxx
Version: 6.7.1.0 (6.7.1)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2015-08-28 00:37:32.658 +0800
OS Version: iOS 7.1.1 (11D201)
Report Version: 104
Exception Type: EXC_CRASH (SIGSEGV)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread: 0
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x39c636d8 __kill + 8
1 Foundation 0x2f901c1e __NSThreadPerformPerform + 382
2 CoreFoundation 0x2eee3fec __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 12
3 CoreFoundation 0x2eee34b2 __CFRunLoopDoSources0 + 202
4 CoreFoundation 0x2eee1ca2 __CFRunLoopRun + 626
5 CoreFoundation 0x2ee4c764 CFRunLoopRunSpecific + 520
6 CoreFoundation 0x2ee4c546 CFRunLoopRunInMode + 102
7 GraphicsServices 0x33db96ce GSEventRunModal + 134
8 UIKit 0x317ab88c UIApplicationMain + 1132
9 BaiduBoxApp 0x0006d13e main (main.m:17)
10 libdyld.dylib 0x39badab4 start + 0
Thread 1:
0 libsystem_kernel.dylib 0x39c51804 kevent64 + 24
1 libdispatch.dylib 0x39ba0050 _dispatch_mgr_invoke + 228
2 libdispatch.dylib 0x39b9a2de _dispatch_mgr_thread + 34
Thread 2 name: com.apple.NSURLConnectionLoader
Thread 2:
0 libsystem_kernel.dylib 0x39c51a50 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x39c51848 mach_msg + 36
2 CoreFoundation 0x2eee3624 __CFRunLoopServiceMachPort + 152
3 CoreFoundation 0x2eee1d44 __CFRunLoopRun + 788
4 CoreFoundation 0x2ee4c764 CFRunLoopRunSpecific + 520
5 CoreFoundation 0x2ee4c546 CFRunLoopRunInMode + 102
6 Foundation 0x2f88c23c +[NSURLConnection(Loader) _resourceLoadLoop:] + 316
7 Foundation 0x2f901a0a __NSThread__main__ + 1058
8 libsystem_pthread.dylib 0x39ccb956 _pthread_body + 138
9 libsystem_pthread.dylib 0x39ccb8c6 _pthread_start + 98
10 libsystem_pthread.dylib 0x39cc9ae4 thread_start + 4
Thread 3 name: com.apple.CFSocket.private
Thread 3:
0 libsystem_kernel.dylib 0x39c64434 __select + 20
1 CoreFoundation 0x2eee751e __CFSocketManager + 482
2 libsystem_pthread.dylib 0x39ccb956 _pthread_body + 138
3 libsystem_pthread.dylib 0x39ccb8c6 _pthread_start + 98
4 libsystem_pthread.dylib 0x39cc9ae4 thread_start + 4
...

[NSPlaceholderString initWithString:]: nil argument on jail break device

I tried with many search with the above title and also do as many advice of my search but cannot solved the problem. My app got crash when I build on the iPad which had jail break. But with the device not jail break it worked. Call the below function is the reason for crash:
-(void)btnLoginPressed:(id)sender {
[[MoboAccesstoken ActiveAccessToken] setMoboAccessTokenDelegate:self];
if (![[MoboAccesstoken ActiveAccessToken]isOpened]){
[MoboSDK openActiveSessionWithCompletion:^(NSDictionary *data) {
NSLog(#"data: %#", data);
}];
}
}
and the stack trace is:
2014-06-05 13:11:39.749 g1[1687:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSPlaceholderString initWithString:]: nil argument'
*** First throw call stack:
(0x355e988f 0x3320d259 0x355e9789 0x355e97ab 0x3499d4c9 0x71af33 0x71cb3f 0x71b893 0x71c8bf 0x1ae2f9 0x2c619f 0x4054ef 0x15dea3 0xca883 0xcf5ab 0x558dcd 0x6a73cd 0x2a5a9f 0x30399f 0x4ba2bb 0x4ba365 0x4ab929 0x4abd4b 0x4abd71 0x2c50fd 0x334c47 0x32d0392b 0x32d03319 0x32ce9695 0x32ce8f3b 0x332db22b 0x355bd523 0x355bd4c5 0x355bc313 0x3553f4a5 0x3553f36d 0x332da439 0x32d17cd5 0xa1167 0x99de8)
terminate called throwing an exception
The image of crash log:
Incident Identifier: 0F14065E-394E-43C4-8B6C-007CF55EDAEA
CrashReporter Key: 975f6d2f7ff682cc1bad50cfed0e860f0502f830
Hardware Model: iPad1,1
Process: TestMoboSDK-Client [294]
Path: /var/mobile/Applications/077E9D1E-0594-45F1-8A23-154B630B8FDB/TestMoboSDK-Client.app/TestMoboSDK-Client
Identifier: TestMoboSDK-Client
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2014-06-05 18:38:04.276 +0700
OS Version: iPhone OS 5.1.1 (9B206)
Report Version: 104
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0
Last Exception Backtrace:
0 CoreFoundation 0x357d688f __exceptionPreprocess + 163
1 libobjc.A.dylib 0x333fa259 objc_exception_throw + 32
2 CoreFoundation 0x357d6789 +[NSException raise:format:arguments:] + 100
3 CoreFoundation 0x357d67ab +[NSException raise:format:] + 34
4 Foundation 0x34b8a4c9 -[NSPlaceholderString initWithString:] + 92
5 TestMoboSDK-Client 0x000f4921 0xe8000 + 51489
6 TestMoboSDK-Client 0x000f05c1 0xe8000 + 34241
7 TestMoboSDK-Client 0x000f4283 0xe8000 + 49795
8 UIKit 0x3310360b _UIXXRemoteNotificationRegistrationSucceeded + 146
9 UIKit 0x331040dd _XRemoteNotificationRegistrationSucceeded + 116
10 AppSupport 0x33ce5af9 migHelperRecievePortCallout + 148
11 CoreFoundation 0x357aa523 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 38
12 CoreFoundation 0x357aa4c5 __CFRunLoopDoSource1 + 140
13 CoreFoundation 0x357a9313 __CFRunLoopRun + 1370
14 CoreFoundation 0x3572c4a5 CFRunLoopRunSpecific + 300
15 CoreFoundation 0x3572c36d CFRunLoopRunInMode + 104
16 GraphicsServices 0x334c7439 GSEventRunModal + 136
17 UIKit 0x32f04cd5 UIApplicationMain + 1080
18 TestMoboSDK-Client 0x000f6c0f 0xe8000 + 60431
19 TestMoboSDK-Client 0x000ee008 0xe8000 + 24584
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x3584c32c __pthread_kill + 8
1 libsystem_c.dylib 0x34a34208 pthread_kill + 48
2 libsystem_c.dylib 0x34a2d298 abort + 88
3 libc++abi.dylib 0x35044f64 abort_message + 40
4 libc++abi.dylib 0x35042346 default_terminate() + 18
5 libobjc.A.dylib 0x333fa350 _objc_terminate + 140
6 libc++abi.dylib 0x350423be safe_handler_caller(void (*)()) + 70
7 libc++abi.dylib 0x3504244a std::terminate() + 14
8 libc++abi.dylib 0x3504381e __cxa_rethrow + 82
9 libobjc.A.dylib 0x333fa2a2 objc_exception_rethrow + 6
10 CoreFoundation 0x3572c506 CFRunLoopRunSpecific + 398
11 CoreFoundation 0x3572c366 CFRunLoopRunInMode + 98
12 GraphicsServices 0x334c7432 GSEventRunModal + 130
13 UIKit 0x32f04cce UIApplicationMain + 1074
14 TestMoboSDK-Client 0x000f6c08 0xe8000 + 60424
15 TestMoboSDK-Client 0x000ee000 0xe8000 + 24576
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x3583c3a8 kevent + 24
1 libdispatch.dylib 0x33b6fea4 _dispatch_mgr_invoke + 708
2 libdispatch.dylib 0x33b6fbc2 _dispatch_mgr_thread + 30
Thread 2:
0 libsystem_kernel.dylib 0x3584ccd4 __workq_kernreturn + 8
1 libsystem_c.dylib 0x349eff36 _pthread_wqthread + 610
2 libsystem_c.dylib 0x349efcc8 start_wqthread + 0
Thread 3 name: WebThread
Thread 3:
0 libsystem_kernel.dylib 0x3584c0d8 __psynch_mutexwait + 24
1 libsystem_c.dylib 0x349e9674 pthread_mutex_lock + 376
2 WebCore 0x373cf4e8 _WebTryThreadLock(bool) + 208
3 WebCore 0x373cf7ec WebRunLoopLock(__CFRunLoopObserver*, unsigned long, void*) + 24
4 CoreFoundation 0x357aab14 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 12
5 CoreFoundation 0x357a8d50 __CFRunLoopDoObservers + 252
6 CoreFoundation 0x357a916a __CFRunLoopRun + 946
7 CoreFoundation 0x3572c49e CFRunLoopRunSpecific + 294
8 CoreFoundation 0x3572c366 CFRunLoopRunInMode + 98
9 WebCore 0x37472c9c RunWebThread(void*) + 396
10 libsystem_c.dylib 0x349f572e _pthread_start + 314
11 libsystem_c.dylib 0x349f55e8 thread_start + 0
Thread 4:
0 libsystem_kernel.dylib 0x3584ccd4 __workq_kernreturn + 8
1 libsystem_c.dylib 0x349eff36 _pthread_wqthread + 610
2 libsystem_c.dylib 0x349efcc8 start_wqthread + 0
Thread 5 name: com.apple.NSURLConnectionLoader
Thread 5:
0 libsystem_kernel.dylib 0x3583c004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x3583c1fa mach_msg + 50
2 CoreFoundation 0x357aa3ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x357a9124 __CFRunLoopRun + 876
4 CoreFoundation 0x3572c49e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x3572c366 CFRunLoopRunInMode + 98
6 Foundation 0x34b71bb2 +[NSURLConnection(Loader) _resourceLoadLoop:] + 302
7 Foundation 0x34b71a7a -[NSThread main] + 66
8 Foundation 0x34c0558a __NSThread__main__ + 1042
9 libsystem_c.dylib 0x349f572e _pthread_start + 314
10 libsystem_c.dylib 0x349f55e8 thread_start + 0
Thread 6:
0 libsystem_kernel.dylib 0x3584ccd4 __workq_kernreturn + 8
1 libsystem_c.dylib 0x349eff36 _pthread_wqthread + 610
2 libsystem_c.dylib 0x349efcc8 start_wqthread + 0
Thread 0 crashed with ARM Thread State:
r0: 0x00000000 r1: 0x00000000 r2: 0x00000001 r3: 0x00000000
r4: 0x00000006 r5: 0x3f0f8d98 r6: 0x00000002 r7: 0x2fee39a8
r8: 0x00000000 r9: 0x35045a4a r10: 0x0014a888 r11: 0x333f4f69
ip: 0x00000148 sp: 0x2fee399c lr: 0x34a3420f pc: 0x3584c32c
cpsr: 0x00000010
Edit:
The crash only happen on iPad(jail break) 5.1.1. With iPad(jail break) 7.0.4 or 6. -> it worked.*
Reason: When I call openActiveSessionWithCompletion function,I do many actions to collect the info to make a url link. It included the action: get UUIDString .And with iOS 5.1 the result when get UUIDString is a NULL string. So that, it's reason for app crash when I call the command: uuid_String = [[NSString alloc]initWithString:[[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString]];. initWithString: this function when push a NULL string will make app crash.
This is wrong:
uuid_String = [[NSString alloc]initWithString:[[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString]]
Just do this:
uuid_String = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
As for why it returns nil, probably because advertising is disabled on the device. Users are allowed to opt out of tracking.
Check the documentation and beware iOS 5 and 7 have different behaviour.

Is there any helpful information in this crash report?

I am trying to identify the cause of a crash (iOS app), but the symbolicated crash report only points to my main method.
8 WxT 0x00002730 main (main.m:14)
9 WxT 0x000026e8 start + 32
Is there anything here that could help me track down the issue, or is this as useless as it appears to me? What does the "start + 32" tell me?
N.B. my app is WxT, and it only referenced a few times in the report. I've highlighted each occurence with a double asterisk (**).
Incident Identifier: 3A6D2AD3-0E9C-41B6-9EA6-4F05EF72B4E0
CrashReporter Key: 2b1b03e6298d7d5bebcb681de363022e7b319df1
Hardware Model: iPad3,2
**Process: WxT [3214]**
**Path: /var/mobile/Applications/613A46E1-5CDC-4A1F-85C5-8D29ACDA289C/WxT.app/WxT**
**Identifier: WxT**
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2012-05-23 15:21:02.300 -0500
OS Version: iPhone OS 5.1.1 (9B206)
Report Version: 104
Exception Type: 00000020
Exception Codes: 0x8badf00d
Highlighted Thread: 3
Application Specific Information:
**WxT[3214] has active assertions beyond permitted time:**
{(
**<SBProcessAssertion: 0x14005c20> identifier: Suspending process: WxT[3214] permittedBackgroundDuration: 10.000000 reason: suspend owner pid:23 preventSuspend preventThrottleDownCPU preventThrottleDownUI**
)}
Elapsed total CPU time (seconds): -4288.787 (user -4288.787, system 0.000), 100% CPU
Elapsed application CPU time (seconds): 0.061, 0% CPU
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libsystem_kernel.dylib 0x35f83004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x35f831fa mach_msg + 50
2 CoreFoundation 0x30b843ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x30b830ea __CFRunLoopRun + 818
4 CoreFoundation 0x30b0649e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x30b06366 CFRunLoopRunInMode + 98
6 GraphicsServices 0x36eca432 GSEventRunModal + 130
7 UIKit 0x327e6cce UIApplicationMain + 1074
**8 WxT 0x00002730 main (main.m:14)**
**9 WxT 0x000026e8 start + 32**
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x35f833a8 kevent + 24
1 libdispatch.dylib 0x355f5f04 _dispatch_mgr_invoke + 708
2 libdispatch.dylib 0x355f5c22 _dispatch_mgr_thread + 30
Thread 2 name: WebThread
Thread 2:
0 libsystem_kernel.dylib 0x35f83004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x35f831fa mach_msg + 50
2 CoreFoundation 0x30b843ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x30b83124 __CFRunLoopRun + 876
4 CoreFoundation 0x30b0649e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x30b06366 CFRunLoopRunInMode + 98
6 WebCore 0x36523c9c _ZL12RunWebThreadPv + 396
7 libsystem_c.dylib 0x33bf472e _pthread_start + 314
8 libsystem_c.dylib 0x33bf45e8 thread_start + 0
Thread 3 name: com.apple.NSURLConnectionLoader
Thread 3:
0 libsystem_kernel.dylib 0x35f83004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x35f831fa mach_msg + 50
2 CoreFoundation 0x30b843ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x30b83124 __CFRunLoopRun + 876
4 CoreFoundation 0x30b0649e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x30b06366 CFRunLoopRunInMode + 98
6 Foundation 0x35a3dbb2 +[NSURLConnection(Loader) _resourceLoadLoop:] + 302
7 Foundation 0x35a3da7a -[NSThread main] + 66
8 Foundation 0x35ad158a __NSThread__main__ + 1042
9 libsystem_c.dylib 0x33bf472e _pthread_start + 314
10 libsystem_c.dylib 0x33bf45e8 thread_start + 0
Thread 4 name: com.apple.CFSocket.private
Thread 4:
0 libsystem_kernel.dylib 0x35f93570 __select + 20
1 CoreFoundation 0x30b8863a __CFSocketManager + 726
2 libsystem_c.dylib 0x33bf472e _pthread_start + 314
3 libsystem_c.dylib 0x33bf45e8 thread_start + 0
Thread 5 name: WebCore: CFNetwork Loader
Thread 5:
0 libsystem_kernel.dylib 0x35f83004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x35f831fa mach_msg + 50
2 CoreFoundation 0x30b843ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x30b83124 __CFRunLoopRun + 876
4 CoreFoundation 0x30b0649e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x30b06366 CFRunLoopRunInMode + 98
6 WebCore 0x3654d0d2 _ZN7WebCoreL15runLoaderThreadEPv + 122
7 libsystem_c.dylib 0x33bf472e _pthread_start + 314
8 libsystem_c.dylib 0x33bf45e8 thread_start + 0
Unknown thread crashed with unknown flavor: 5, state_count: 1
Binary Images:
**0x1000 - 0x2afff +WxT armv7 <d34067e47ac73d7390a27c79ab5582b3> /var/mobile/Applications/613A46E1-5CDC-4A1F-85C5-8D29ACDA289C/WxT.app/WxT**
0x2fee1000 - 0x2ff02fff dyld armv7 <77eddfd654df393ba9c95ff01715fd08> /usr/lib/dyld
It looks like:
Application Specific Information:
**WxT[3214] has active assertions beyond permitted time:**
{(
**<SBProcessAssertion: 0x14005c20> identifier: Suspending process: WxT[3214] permittedBackgroundDuration: 10.000000 reason: suspend owner pid:23 preventSuspend preventThrottleDownCPU preventThrottleDownUI**
)}
the system is trying to move your app to background, and your URL connection (thread.3) is preventing that from happening.
The error message states you tried to run for more than 10 minutes while in the background. By default, iOS apps must stop all processing within 10 minutes upon being put in the background.

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