Search anywhere and could not found an answer. I have this issue causing the app to crash on many users.
How many?
MANY!
I can't reproduce the crash and I can't understand anything from the Crashlytics logs:
After reading some questions and answers around I suspect that something in ManagedObjectContext cause it.
Already visited:
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What should I do next?
Crash log:
Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x1b0e720f8 objc_msgSend + 24
1 Foundation 0x19dcb3b90 __NSThreadPerformPerform + 188
2 CoreFoundation 0x19c89c76c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
3 CoreFoundation 0x19c89c668 __CFRunLoopDoSource0 + 208
4 CoreFoundation 0x19c89b9cc __CFRunLoopDoSources0 + 376
5 CoreFoundation 0x19c895a8c __CFRunLoopRun + 824
6 CoreFoundation 0x19c89521c CFRunLoopRunSpecific + 600
7 GraphicsServices 0x1b3914784 GSEventRunModal + 164
8 UIKitCore 0x19f2ce200 -[UIApplication _run] + 1072
9 UIKitCore 0x19f2d3a74 UIApplicationMain + 168
10 ZoomQuizProd 0x102a407b0 main + 19 (AppNotificationManager.swift:19)
11 libdyld.dylib 0x19c5556c0 start + 4
I'm writing an iOS app and experiencing odd behavior with the app. It usually operates without error but the app is designed to be left open on an iPad for multiple days. After several days or so of use, it will seem to be unable to open and crash upon opening. If I re-download the app then it will open fine and not crash.
Here is an excerpt from the stack trace of a typical crash. It seems like there might be an issue with array insertion somewhere in the app, but how can I go about debugging this issue?
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread: 0
Last Exception Backtrace:
0 CoreFoundation 0x26cbb5a2 __exceptionPreprocess + 122
1 libobjc.A.dylib 0x34cc2c72 objc_exception_throw + 34
2 CoreFoundation 0x26bd6cb4 -[__NSArrayM insertObject:atIndex:] + 616
3 InstaAid 0x00074b76 0x69000 + 47990
4 libdispatch.dylib 0x3522dc7e _dispatch_call_block_and_release + 6
5 libdispatch.dylib 0x3522dc6a _dispatch_client_callout + 18
6 libdispatch.dylib 0x3523954e _dispatch_main_queue_callback_4CF$VARIANT$mp + 1318
7 CoreFoundation 0x26c8188c __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 4
8 CoreFoundation 0x26c7ffac __CFRunLoopRun + 1508
9 CoreFoundation 0x26bccb4c CFRunLoopRunSpecific + 472
10 CoreFoundation 0x26bcc95e CFRunLoopRunInMode + 102
11 GraphicsServices 0x2e1091a4 GSEventRunModal + 132
12 UIKit 0x2a21ec8c UIApplicationMain + 1436
13 InstaAid 0x00076b8c 0x69000 + 56204
14 libdyld.dylib 0x3526baaa tlv_initializer + 2
I keep on experiencing crash in my iOS app that is related to the GAIReachabilityChecker.
It seems to crash on this function:
-[GAIReachabilityChecker reachabilityFlagsChanged:]
And this is the error log:
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x00000001981939d0 objc_msgSend + 16
1 0x0000000100274de8 -[GAIReachabilityChecker reachabilityFlagsChanged:]
2 SystemConfiguration 0x000000018f0905cc reachPerform + 836
3 CoreFoundation 0x000000018c1db77c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
4 CoreFoundation 0x000000018c1daad8 __CFRunLoopDoSources0 + 256
5 CoreFoundation 0x000000018c1d8d70 __CFRunLoopRun + 632
6 CoreFoundation 0x000000018c119b38 CFRunLoopRunSpecific + 452
7 GraphicsServices 0x0000000191b3f830 GSEventRunModal + 168
8 UIKit 0x000000018f1580e8 UIApplicationMain + 1156
9 0x0000000100072870 main (main.m:17)
10 libdyld.dylib 0x0000000198783aa0 start + 4
There are no steps reproduce this issue, it just randomly crashing.
I'm using the the latest Google Analytics iOS SDK version 3.0
I have one user, and only one user, that regularly gets the following crash:
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x0000000192e7a984 objc_object::release() + 8
1 libobjc.A.dylib 0x0000000192e79474 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 524
2 CoreFoundation 0x0000000186855b38 _CFAutoreleasePoolPop + 28
3 CoreFoundation 0x0000000186915124 __CFRunLoopRun + 1460
4 CoreFoundation 0x0000000186855dd0 CFRunLoopRunSpecific + 452
5 GraphicsServices 0x000000018c53dc0c GSEventRunModal + 168
6 UIKit 0x0000000189986fc4 UIApplicationMain + 1156
7 MyApp 0x00000001001a92d0 main (main.m:17)
8 libdyld.dylib 0x0000000193453aa0 start + 4
This is the entire crash, and I have no clue what causes it.
The user has a pretty standard phone, but it only started happening when they got a replacement iPhone 5 earlier this year. Given that timeline and the fact they are the only one with the crash, might the phone itself be at fault?
Is there anywhere I could look for more information to default this information?
I have a problem in my app. My app is using internet connection. When I run it in the device from the Xcode its running without crashing. But when I install it fisttime it runs, but if I close the app and then try to again run after loading the splash screen it crashes. Why is that? But this is working when I'm run the app through the xcode in the device.
But when I use 3G instead of wifi it goes beyond the splash screen
Updated
Incident Identifier: 5AAF8220-55D5-4011-B14A-F9A86C624F7C
CrashReporter Key: f0828a82293c0951598f3501da6c4cc391e66276
Hardware Model: iPad1,1
Process: mMusic [303]
Path: /var/mobile/Applications/6D985396-5C2A-430D-B605-617EFA46A470/mMusic.app/mMusic
Identifier: mMusic
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2013-09-25 10:11:07.842 +0530
OS Version: iPhone OS 5.1.1 (9B206)
Report Version: 104
Exception Type: 00000020
Exception Codes: 0x8badf00d
Highlighted Thread: 0
Application Specific Information:
com.microimage.mMusic failed to launch in time
Elapsed total CPU time (seconds): 1.050 (user 1.050, system 0.000), 5% CPU
Elapsed application CPU time (seconds): 0.237, 1% CPU
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libsystem_kernel.dylib 0x357fb004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x357fb1fa mach_msg + 50
2 CoreFoundation 0x357693ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x35768124 __CFRunLoopRun + 876
4 CoreFoundation 0x356eb49e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x356eb366 CFRunLoopRunInMode + 98
6 CFNetwork 0x314ade14 CFURLConnectionSendSynchronousRequest + 340
7 Foundation 0x34b304a6 +[NSURLConnection sendSynchronousRequest:returningResponse:error:] + 242
8 Foundation 0x34b54356 -[NSData(NSData) initWithContentsOfURL:] + 178
9 Foundation 0x34b85174 +[NSData(NSData) dataWithContentsOfURL:] + 36
10 mMusic 0x0013b2a4 0xa5000 + 615076
11 mMusic 0x0012fc34 0xa5000 + 568372
12 mMusic 0x000a6b96 0xa5000 + 7062
13 UIKit 0x32ecdca4 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1176
14 UIKit 0x32ec77d6 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 402
15 UIKit 0x32e95abc -[UIApplication handleEvent:withNewEvent:] + 1004
16 UIKit 0x32e95560 -[UIApplication sendEvent:] + 48
17 UIKit 0x32e94f34 _UIApplicationHandleEvent + 5820
18 GraphicsServices 0x33487224 PurpleEventCallback + 876
19 CoreFoundation 0x3576951c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
20 CoreFoundation 0x357694be __CFRunLoopDoSource1 + 134
21 CoreFoundation 0x3576830c __CFRunLoopRun + 1364
22 CoreFoundation 0x356eb49e CFRunLoopRunSpecific + 294
23 CoreFoundation 0x356eb366 CFRunLoopRunInMode + 98
24 UIKit 0x32ec6864 -[UIApplication _run] + 544
25 UIKit 0x32ec3cce UIApplicationMain + 1074
26 mMusic 0x000a638c 0xa5000 + 5004
27 mMusic 0x000a62e8 0xa5000 + 4840
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x357fb3a8 kevent + 24
1 libdispatch.dylib 0x33b2eea4 _dispatch_mgr_invoke + 708
2 libdispatch.dylib 0x33b2ebc2 _dispatch_mgr_thread + 30
Thread 2 name: WebThread
Thread 2:
0 libsystem_kernel.dylib 0x357fb004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x357fb1fa mach_msg + 50
2 CoreFoundation 0x357693ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x35768124 __CFRunLoopRun + 876
4 CoreFoundation 0x356eb49e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x356eb366 CFRunLoopRunInMode + 98
6 WebCore 0x37431c9c _ZL12RunWebThreadPv + 396
7 libsystem_c.dylib 0x349b472e _pthread_start + 314
8 libsystem_c.dylib 0x349b45e8 thread_start + 0
Thread 3 name: com.apple.NSURLConnectionLoader
Thread 3:
0 libsystem_kernel.dylib 0x357fb004 mach_msg_trap + 20
1 libsystem_kernel.dylib 0x357fb1fa mach_msg + 50
2 CoreFoundation 0x357693ec __CFRunLoopServiceMachPort + 120
3 CoreFoundation 0x35768124 __CFRunLoopRun + 876
4 CoreFoundation 0x356eb49e CFRunLoopRunSpecific + 294
5 CoreFoundation 0x356eb366 CFRunLoopRunInMode + 98
6 Foundation 0x34b30bb2 +[NSURLConnection(Loader) _resourceLoadLoop:] + 302
7 Foundation 0x34b30a7a -[NSThread main] + 66
8 Foundation 0x34bc458a __NSThread__main__ + 1042
9 libsystem_c.dylib 0x349b472e _pthread_start + 314
10 libsystem_c.dylib 0x349b45e8 thread_start + 0
Thread 4 name: com.apple.CFSocket.private
Thread 4:
0 libsystem_kernel.dylib 0x3580b570 __select + 20
1 CoreFoundation 0x3576d63a __CFSocketManager + 726
2 libsystem_c.dylib 0x349b472e _pthread_start + 314
3 libsystem_c.dylib 0x349b45e8 thread_start + 0
Unknown thread crashed with unknown flavor: 5, state_count: 1
Looks like your application was killed by the Springboard because it failed to launch before the watchdog timer expired.
Exception Codes: 0x8badf00d
Application Specific Information:
com.microimage.mMusic failed to launch in time
It looks like you are making a synchronous call to download data at application launch. This is blocking the main thread causing application to not launch in time. You should allow the application to launch completely first and then initiate the network call on background thread (not the main thread).
Read more from these links: Link1, Link2
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.
Hope that helps!
If you get Exception Type: 00000020 and Exception Codes: 0x8badf00d in your crash log then it is due to running synchronous task on main thread. Solution is to use asynchronous task on main thread.
It is referred to as watchdog timeout crash reports. You can check this Apple document for details.
Seeing a similar crash for our watchos 3 app.
Part of the problem was it was difficult to get a complete crash report. Only when I was able to reliably reproduce the crash and repeated it 20-30 times did I get a single coherent crash report with a stack trace. Saw many partial reports with some json including kernel, crashReporterKey, memoryPages etc. but only one complete report with a stack trace.
Another problem, xcode never connected to the device while debugging. Of course, the app was killed for taking to long to start, so the debugger is of no use. Same symptoms with simulator.
Solution: we were activating our wcsession in our extension delegate's applicationDidFinishLaunching. Activation is asynchronous, so I assumed this was ok. Moving session activation to applicationDidBecomeActive have fixed the issue.