iOS Crash UnityWebRequestProto

We are using 2019.1.13f1 and iOS 12

#61. Crashed: com.unity3d.WebOperationQueue (QOS: UNSPECIFIED)

0  aol                            0x1057ff41c UnityWebRequestProto<UnityWebRequestTransport, AtomicRefCounter, RedirectHelper, ResponseHelper, DownloadHandler, UploadHandler, CertificateHandler, HeaderHelper, AsyncOperation>::FinishDoRequest(WebError) + 593 (UnityWebRequestProto.h:593)

1  aol                            0x104cc9484 -[UnityWebRequestDelegate URLSession:task:didCompleteWithError:] + 204 (UnityWebRequest.mm:204)

2  CFNetwork                      0x188cdeb20 _CFNetworkHTTPConnectionCacheSetLimit + 206092

3  Foundation                     0x185cfd61c __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 16

4  Foundation                     0x185c073d8 -[NSBlockOperation main] + 100

5  Foundation                     0x185cff8a4 __NSOPERATION_IS_INVOKING_MAIN__ + 20

6  Foundation                     0x185c07070 -[NSOperation start] + 732

7  Foundation                     0x185d0029c __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__ + 20

8  Foundation                     0x185cffd68 __NSOQSchedule_f + 180

9  libdispatch.dylib              0x1855e99a8 _dispatch_block_async_invoke2 + 104

10 libdispatch.dylib              0x185606184 _dispatch_client_callout + 16

11 libdispatch.dylib              0x1855dfeb8 _dispatch_continuation_pop$VARIANT$armv81 + 404

12 libdispatch.dylib              0x1855df62c _dispatch_async_redirect_invoke + 592

13 libdispatch.dylib              0x1855ec110 _dispatch_root_queue_drain + 344

14 libdispatch.dylib              0x1855ec8b0 _dispatch_worker_thread2 + 116

15 libsystem_pthread.dylib        0x185655f64 _pthread_wqthread + 212

16 libsystem_pthread.dylib        0x185658ae0 start_wqthread + 8

 

Not reliably, but this issue happens a lot, we have to change the scenes to reproduce it (web requests are being sent a lot during the transitions)

 

I did

 

Seeing this as well in Unity Analytics. Any fix for it?

UNITY VERSION
2019.2.7f2

DEVICE
iPhone8,1

OS VERSION
iOS 13.1.2

CPU
arm64

GFX
Apple A9 GPU

Code (CSharp):

1.  
2. Native StackTrace:
3.  
4. Thread 0
5. 0   libsystem_kernel.dylib             0x00000001bbea18b0 __ulock_wait
6. 1   xxxxxxxxxx                         0x00000001055501d0 PlatformThread::Join(Thread const*)
7. 2   xxxxxxxxxx                         0x000000010554ed5c Thread::WaitForExit(bool)
8. 3   xxxxxxxxxx                         0x00000001054bf128 JobQueue::Shutdown(JobQueue::ShutdownMode)
9. 4   xxxxxxxxxx                         0x00000001052b367c UnityEngine::Analytics::CloudJobScheduler::Close()
10. 5   xxxxxxxxxx                         0x00000001052b6830 DispatcherService::CloseService()
11. 6   xxxxxxxxxx                         0x00000001052a6f54 BaseUnityAnalytics::CloseService()
12. 7   xxxxxxxxxx                         0x00000001052ae420 CallbackArray5<unsigned int, unsigned long long, unsigned long long, unsigned long long, int>::Invoke(unsigned int, unsigned long long, unsigned long long, unsigned long long, int)
13. 8   xxxxxxxxxx                         0x00000001052ae378 AnalyticsSessionService::OnPlayerSessionStateChanged(bool, AnalyticsSessionService::SessionChangeReason, bool)
14. 9   xxxxxxxxxx                         0x00000001052ae2dc AnalyticsSessionService::OnPlayerStateChanged(AnalyticsSessionService::SessionState, AnalyticsSessionService::SessionChangeReason)
15. 10  xxxxxxxxxx                         0x00000001052a8590 CallbackArray::Invoke()
16. 11  xxxxxxxxxx                         0x00000001054efdd4 PlayerCleanup(bool)
17. 12  xxxxxxxxxx                         0x000000010571a900 UnityCleanup
18. 13  xxxxxxxxxx                         0x0000000104fe59bc -[UnityAppController applicationWillTerminate:]
19. 14  UIKitCore                          0x00000001c00bb96c -[UIApplication _terminateWithStatus:]
20. 15  UIKitCore                          0x00000001bf890ec0 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]
21. 16  UIKitCore                          0x00000001bf890b40 -[_UISceneLifecycleMultiplexer forceExitWithTransitionContext:scene:]
22. 17  UIKitCore                          0x00000001c00b1edc -[UIApplication workspaceShouldExit:withTransitionContext:]
23. 18  FrontBoardServices                 0x00000001c113ab00 -[FBSUIApplicationWorkspaceShim workspaceShouldExit:withTransitionContext:]
24. 19  FrontBoardServices                 0x00000001c1166184 __83-[FBSWorkspaceScenesClient willTerminateWithTransitionContext:withAcknowledgement:]_block_invoke_2
25.  
26.  
27. Thread 1 (crashed)
28. 0   xxxxxxxxxx                         0x000000010563546c UnityWebRequestProto<UnityWebRequestTransport, AtomicRefCounter, RedirectHelper, ResponseHelper, DownloadHandler, UploadHandler, CertificateHandler, HeaderHelper, AsyncOperation>::FinishDoRequest(WebError)
29. 1   xxxxxxxxxx                         0x0000000104fd1fe0 -[UnityWebRequestDelegate URLSession:task:didCompleteWithError:]
30. 2   CFNetwork                          0x00000001bf44fb20 _CFNetworkHTTPConnectionCacheSetLimit
31. 3   Foundation                         0x00000001bc46d61c __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
32. 4   Foundation                         0x00000001bc3773d8 -[NSBlockOperation main]
33. 5   Foundation                         0x00000001bc46f8a4 __NSOPERATION_IS_INVOKING_MAIN__
34. 6   Foundation                         0x00000001bc377070 -[NSOperation start]
35. 7   Foundation                         0x00000001bc47029c __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__
36. 8   Foundation                         0x00000001bc46fd68 __NSOQSchedule_f
37. 9   libdispatch.dylib                  0x00000001bbd2881c _dispatch_block_async_invoke2
38. 10  libdispatch.dylib                  0x00000001bbd76184 _dispatch_client_callout
39. 11  libdispatch.dylib                  0x00000001bbd1ea9c _dispatch_continuation_pop$VARIANT$mp
40. 12  libdispatch.dylib                  0x00000001bbd1e1f0 _dispatch_async_redirect_invoke
41. 13  libdispatch.dylib                  0x00000001bbd2afd0 _dispatch_root_queue_drain
42. 14  libdispatch.dylib                  0x00000001bbd2b79c _dispatch_worker_thread2
43. 15  libsystem_pthread.dylib            0x00000001bbdc5f64 _pthread_wqthread
44. 16  libsystem_pthread.dylib            0x00000001bbdc8ae0 start_wqthread

 

Looks like we have the same problem:

The application is in the background when the error occurs.
Unity version: 2019.2.0f1. iPhone 9.1 iOS 12.4.1

 

Also getting the same error

Native StackTrace:



Thread 0

0   libsystem_kernel.dylib             0x00000001ad0929d4 __ulock_wait

1   DreamScape                         0x00000001019b1608 Enlighten::MultithreadCpuWorkerCommon::StopWorkerThread()

2   DreamScape                         0x00000001019a384c Enlighten::CpuUpdateManager::~CpuUpdateManager()

3   DreamScape                         0x00000001012a1b24 HLRTManager::Release()

4   DreamScape                         0x0000000101299c50 EnlightenRuntimeManager::~EnlightenRuntimeManager()

5   DreamScape                         0x0000000101299524 EnlightenRuntimeManager::CleanupClass()

6   DreamScape                         0x00000001011da544 CallbackArray::Invoke()

7   DreamScape                         0x0000000101430184 CleanupAllObjects()

8   DreamScape                         0x00000001014308b4 CleanupEngine()

9   DreamScape                         0x000000010143bd74 PlayerCleanup(bool)

10  DreamScape                         0x00000001016d9508 UnityCleanup

11  DreamScape                         0x0000000100e53550 -[UnityAppController applicationWillTerminate:]

12  UIKitCore                          0x00000001d976aef4 -[UIApplication _terminateWithStatus:]

13  UIKitCore                          0x00000001d9026d7c __98-[__UICanvasLifecycleMonitor_Compatability deactivateEventsOnly:withContext:forceExit:completion:]_block_invoke.261

14  UIKitCore                          0x00000001d976f0ac _runAfterCACommitDeferredBlocks

15  UIKitCore                          0x00000001d975dbfc _cleanUpAfterCAFlushAndRunDeferredBlocks

16  UIKitCore                          0x00000001d978aa6c _afterCACommitHandler

17  CoreFoundation                     0x00000001ad48a50c <system symbols missing>

18  CoreFoundation                     0x00000001ad485234 <system symbols missing>

19  CoreFoundation                     0x00000001ad4857b0 <system symbols missing>

20  CoreFoundation                     0x00000001ad484fc4 <system symbols missing>

21  GraphicsServices                   0x00000001af68679c GSEventRunModal

22  UIKitCore                          0x00000001d9763c38 UIApplicationMain

23  DreamScape                         0x0000000100e3deec main

24  libdyld.dylib                      0x00000001acf458e0 start



Thread 1

0   libsystem_kernel.dylib             0x00000001ad0870f4 mach_msg_trap

1   CoreFoundation                     0x00000001ad48a924 <system symbols missing>

2   CoreFoundation                     0x00000001ad485834 <system symbols missing>

3   CoreFoundation                     0x00000001ad484fc4 <system symbols missing>

4   Foundation                         0x00000001ade5398c <system symbols missing>

5   Foundation                         0x00000001ade5381c <system symbols missing>

6   UIKitCore                          0x00000001d9849754 -[UIEventFetcher threadMain]

7   Foundation                         0x00000001adf804a0 <system symbols missing>

8   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

9   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

10  libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 2

0   libsystem_kernel.dylib             0x00000001ad091ee4 __psynch_cvwait

1   DreamScape                         0x0000000101aa0304 il2cpp::os::posix::PosixWaitObject::Wait(unsigned int, bool)

2   DreamScape                         0x0000000101a7a0c4 il2cpp::gc::FinalizerThread(void*)

3   DreamScape                         0x0000000101a973fc il2cpp::os::Thread::RunWrapper(void*)

4   DreamScape                         0x0000000101a995d8 il2cpp::os::ThreadImpl::ThreadStartWrapper(void*)

5   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

6   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

7   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 3

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 4

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 5

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 6

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 7

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 8

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 9

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 10

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 11

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 12

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 13

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 14

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 15

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 16

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 17

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 18

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 19

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001013c3788 CappedSemaphore::WaitForSignalInternal(bool)

4   DreamScape                         0x0000000101408258 JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)

5   DreamScape                         0x0000000101407770 JobQueue::WorkLoop(void*)

6   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

7   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

8   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

9   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 20

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001014a1b44 ThreadedStreamBuffer::HandleOutOfBufferToReadFrom(ThreadedStreamBuffer::DataOffsets)

4   DreamScape                         0x00000001014378a0 BatchDeleteStep2Threaded(void*)

5   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

6   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

7   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

8   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 21

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x000000010136ea24 AsyncReadManagerThreaded::ThreadEntry()

4   DreamScape                         0x000000010136e660 AsyncReadManagerThreaded::StaticThreadEntry(void*)

5   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

6   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

7   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

8   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 22

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001014a1b44 ThreadedStreamBuffer::HandleOutOfBufferToReadFrom(ThreadedStreamBuffer::DataOffsets)

4   DreamScape                         0x0000000101253f98 GfxDeviceWorker::RunCommand(ThreadedStreamBuffer&)

5   DreamScape                         0x00000001016b58b4 GfxDeviceWorkerAutoreleasePoolProxy

6   DreamScape                         0x000000010125b0cc GfxDeviceWorker::RunExt(ThreadedStreamBuffer&)

7   DreamScape                         0x0000000101253d10 GfxDeviceWorker::RunGfxDeviceWorker(void*)

8   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

9   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

10  libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

11  libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 23

0   libsystem_kernel.dylib             0x00000001ad0870f4 mach_msg_trap

1   CoreFoundation                     0x00000001ad48a924 <system symbols missing>

2   CoreFoundation                     0x00000001ad485834 <system symbols missing>

3   CoreFoundation                     0x00000001ad484fc4 <system symbols missing>

4   AVFAudio                           0x00000001b33f7334 GenericRunLoopThread::Entry(void*)

5   AVFAudio                           0x00000001b3421c60 CAPThread::Entry(CAPThread*)

6   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

7   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

8   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 24

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   DreamScape                         0x0000000101a39868 FMOD::Thread::callback(void*)

2   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

3   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

4   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 25

0   libsystem_kernel.dylib             0x00000001ad0870f4 mach_msg_trap

1   AudioToolbox                       0x00000001b1441880 AURemoteIO::IOThread::Run()

2   AudioToolbox                       0x00000001b14467f0 AURemoteIO::IOThread::Entry(void*)

3   AudioToolbox                       0x00000001b18194f8 CAPThread::Entry(CAPThread*)

4   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

5   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

6   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 26

0   libsystem_kernel.dylib             0x00000001ad092400 __semwait_signal

1   libsystem_c.dylib                  0x00000001ad008444 usleep

2   DreamScape                         0x0000000101a1dea0 FMOD_OS_Time_Sleep(unsigned int)

3   DreamScape                         0x0000000101a398bc FMOD::Thread::callback(void*)

4   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

5   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

6   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 27

0   libsystem_kernel.dylib             0x00000001ad0870f4 mach_msg_trap

1   CoreFoundation                     0x00000001ad48a924 <system symbols missing>

2   CoreFoundation                     0x00000001ad485834 <system symbols missing>

3   CoreFoundation                     0x00000001ad484fc4 <system symbols missing>

4   CoreFoundation                     0x00000001ad485d20 <system symbols missing>

5   CoreMotion                         0x00000001b2e5cbe8 

6   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

7   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

8   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 28

0   libsystem_kernel.dylib             0x00000001ad0870f4 mach_msg_trap

1   CoreFoundation                     0x00000001ad48a924 <system symbols missing>

2   CoreFoundation                     0x00000001ad485834 <system symbols missing>

3   CoreFoundation                     0x00000001ad484fc4 <system symbols missing>

4   CFNetwork                          0x00000001ada9f74c -[__CoreSchedulingSetRunnable runForever]

5   Foundation                         0x00000001adf804a0 <system symbols missing>

6   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

7   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

8   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 29

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001012a21a4 HLRTThreadGroup::Run(Enlighten::TaskProcessor*, char const*)

4   DreamScape                         0x00000001019af0d4 Enlighten::MultithreadCpuWorkerCommon::DoStageInputLighting()

5   DreamScape                         0x00000001019af2c0 Enlighten::MultithreadCpuWorkerCommon::UpdateRadiosity()

6   DreamScape                         0x00000001019a8594 Enlighten::BaseWorker::ExecuteCommands()

7   DreamScape                         0x00000001019b155c Enlighten::MultithreadCpuWorkerCommon::CommandThreadFunction(void*)

8   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

9   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

10  libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 30

0   libsystem_kernel.dylib             0x00000001ad087130 semaphore_wait_trap

1   libdispatch.dylib                  0x00000001aced7220 _dispatch_semaphore_wait_slow

2   DreamScape                         0x00000001012b15e8 PlatformSemaphore::WaitForSignal(int)

3   DreamScape                         0x00000001012a2230 TUpdateFunction(void*)

4   DreamScape                         0x00000001014a0c44 Thread::RunThreadWrapper(void*)

5   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

6   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

7   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 31

0   libsystem_kernel.dylib             0x00000001ad092328 __select

1   libsystem_pthread.dylib            0x00000001ad1142c0 _pthread_body

2   libsystem_pthread.dylib            0x00000001ad114220 _pthread_start

3   libsystem_pthread.dylib            0x00000001ad117cdc thread_start



Thread 32

0   libsystem_kernel.dylib             0x00000001ad092b74 __workq_kernreturn

1   libsystem_pthread.dylib            0x00000001ad117cd4 start_wqthread



Thread 33

0   CoreFoundation                     0x00000001ad48d520 <system symbols missing>

1   CoreFoundation                     0x00000001ad4cb99c <system symbols missing>

2   CoreFoundation                     0x00000001ad48c534 <system symbols missing>

3   CoreFoundation                     0x00000001ad459de8 <system symbols missing>

4   CoreFoundation                     0x00000001ad3e33d4 <system symbols missing>

5   Security                           0x00000001ae1a46a0 SecCertificateDestroy

6   CoreFoundation                     0x00000001ad48c534 <system symbols missing>

7   CoreFoundation                     0x00000001ad459de8 <system symbols missing>

8   CoreFoundation                     0x00000001ad3e33d4 <system symbols missing>

9   Security                           0x00000001ae1e2984 SecTrustDestroy

10  CoreFoundation                     0x00000001ad48c534 <system symbols missing>

11  CFNetwork                          0x00000001adbcd2cc HTTPProtocol::~HTTPProtocol()

12  CoreFoundation                     0x00000001ad48c534 <system symbols missing>

13  CFNetwork                          0x00000001adcde1dc AwaitingTube::~AwaitingTube()

14  CFNetwork                          0x00000001adcde238 AwaitingTube::~AwaitingTube()

15  CFNetwork                          0x00000001adbbff84 Tube::~Tube()

16  CFNetwork                          0x00000001adbc0218 Tube::~Tube()

17  libdispatch.dylib                  0x00000001acf33a38 _dispatch_call_block_and_release

18  libdispatch.dylib                  0x00000001acf347d4 _dispatch_client_callout

19  libdispatch.dylib                  0x00000001acedd324 _dispatch_lane_serial_drain$VARIANT$mp

20  libdispatch.dylib                  0x00000001acedde74 _dispatch_lane_invoke$VARIANT$mp

21  libdispatch.dylib                  0x00000001acedf10c _dispatch_workloop_invoke$VARIANT$mp

22  libdispatch.dylib                  0x00000001acee64ac _dispatch_workloop_worker_thread

23  libsystem_pthread.dylib            0x00000001ad115114 _pthread_wqthread

24  libsystem_pthread.dylib            0x00000001ad117cd4 start_wqthread



Thread 34

0   libsystem_kernel.dylib             0x00000001ad0870f4 mach_msg_trap

1   CoreFoundation                     0x00000001ad48a924 <system symbols missing>

2   CoreFoundation                     0x00000001ad485834 <system symbols missing>

3   CoreFoundation                     0x00000001ad484fc4 <system symbols missing>

4   CoreFoundation                     0x00000001ad49e9c0 <system symbols missing>

5   CoreFoundation                     0x00000001ad49bfd4 <system symbols missing>

6   DreamScape                         0x0000000100e3f1d4 -[UnityWebRequestDelegate writeBody]

7   Foundation                         0x00000001adf5ecf4 <system symbols missing>

8   Foundation                         0x00000001ade6adc0 <system symbols missing>

9   Foundation                         0x00000001ade6a2a8 <system symbols missing>

10  Foundation                         0x00000001adf60a78 <system symbols missing>

11  libdispatch.dylib                  0x00000001acf33a38 _dispatch_call_block_and_release

12  libdispatch.dylib                  0x00000001acf347d4 _dispatch_client_callout

13  libdispatch.dylib                  0x00000001aced901c _dispatch_continuation_pop$VARIANT$mp

14  libdispatch.dylib                  0x00000001aced86e0 _dispatch_async_redirect_invoke

15  libdispatch.dylib                  0x00000001acee5030 _dispatch_root_queue_drain

16  libdispatch.dylib                  0x00000001acee58d4 _dispatch_worker_thread2

17  libsystem_pthread.dylib            0x00000001ad1151b4 _pthread_wqthread

18  libsystem_pthread.dylib            0x00000001ad117cd4 start_wqthread



Thread 35

0   libsystem_kernel.dylib             0x00000001ad092b74 __workq_kernreturn

1   libsystem_pthread.dylib            0x00000001ad117cd4 start_wqthread



Thread 36

0   libsystem_kernel.dylib             0x00000001ad092b74 __workq_kernreturn

1   libsystem_pthread.dylib            0x00000001ad117cd4 start_wqthread



Thread 37 (crashed)

0   DreamScape                         0x00000001015d3ea8 UnityWebRequestProto<UnityWebRequestTransport, AtomicRefCounter, RedirectHelper, ResponseHelper, DownloadHandler, UploadHandler, CertificateHandler, HeaderHelper, AsyncOperation>::FinishDoRequest(WebError)

1   DreamScape                         0x0000000100e3f2f8 -[UnityWebRequestDelegate URLSession:task:didCompleteWithError:]

2   CFNetwork                          0x00000001adc7d420 __51-[NSURLSession delegate_task:didCompleteWithError:]_block_invoke.182

3   Foundation                         0x00000001adf5ecf4 <system symbols missing>

4   Foundation                         0x00000001ade6adc0 <system symbols missing>

5   Foundation                         0x00000001ade6a2a8 <system symbols missing>

6   Foundation                         0x00000001adf60a78 <system symbols missing>

7   libdispatch.dylib                  0x00000001acf33a38 _dispatch_call_block_and_release

8   libdispatch.dylib                  0x00000001acf347d4 _dispatch_client_callout

9   libdispatch.dylib                  0x00000001aced901c _dispatch_continuation_pop$VARIANT$mp

10  libdispatch.dylib                  0x00000001aced86e0 _dispatch_async_redirect_invoke

11  libdispatch.dylib                  0x00000001acee5030 _dispatch_root_queue_drain

12  libdispatch.dylib                  0x00000001acee58d4 _dispatch_worker_thread2

13  libsystem_pthread.dylib            0x00000001ad1151b4 _pthread_wqthread

14  libsystem_pthread.dylib            0x00000001ad117cd4 start_wqthread

Unity 2019.2.6f1 iOS -- iPad4,1 -- iOS 12.4.2

 

Would you mind sharing the issue tracker number so I can check the status of this? It's happening a lot for us in 2019.2.5f1.

 

We're just about to release an update, so can not update Unity at this point. Will do a Unity version upgrade asap after this release though, hopefully it has gone away in the latest version. Will let you know.

 

I feel sorry to tell you that in Unity 2020.1.0a22 it is still there

 

But it seems that the frequency of the problem has dropped, and it never occurs on iOS 13 devices again. I'm not sure if it is a coincidence.

 

I do have a stack trace, but it seems that there is something wrong with xcode and I can't get anything useful here:
On main thread,
0 mach_msg_trap
---------------------------
6 UIApplicationMain
7 -[UnityFramework runApplication... in main.mm
8 main
9 start

It is strange that after clicking 'share the crash to the developer' on device I can't see a crash log now. There is only a json manifest file. Maybe my own problem.

---------
Yes, I use UnityWebRequests to load music files from the disk, and I use a lot of them.

 

Hello, guys I am running through the same issue in some apps, seem that after I updated the unity version to 2019.1.6f1 the amount of crashes raised up in a significant amount (more than double), I had the same issue in previous versions, but much less.

Like other people here I use WebRequests to download short small videos and png files, and I have around 20 of these in the app start up.

Hope the stacktrace can be useful

 

Same issue when switch app to backgroud. here is stacktrace. Unity2019.2.0f1

 

Update: I think it is because I am using the UnityWebRequest to get AudioClip objects not in the intended way. I don't know yet whether disposing incorrectly causes the problem. What I did: To work around loading local file, I now set up an http server in the background and load from it. The crash is still there.

 

Hi Aurimas-Cernius,

do you have more information about which versions should have the fix? We're reproducing it in 2019.3.10f1 on devices running iOS 13.5.1. You wrote in early February that a blind fix had been made, so presumably that should have made it into 2019.3.10f1, which shipped in mid April.

The .crash file says

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)

Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000108

VM Region Info: 0x108 is not in any region.  Bytes before following region: 4367187704

      REGION TYPE                      START - END             [ VSIZE] PRT/MAX SHRMOD  REGION DETAIL

      UNUSED SPACE AT START

--->

      __TEXT                 00000001044e0000-00000001044e4000 [   16K] r-x/r-x SM=COW  ....app/Nibblity

Thread 53 name:

Thread 53 Crashed:

0   libsystem_pthread.dylib          0x00000001b16cceb0 _pthread_mutex_fairshare_unlock + 128 (pthread_mutex.c:1032)

1   UnityFramework                    0x000000010563b650 UnityWebRequestProto<UnityWebRequestTransport, AtomicRefCounter, RedirectHelper, ResponseHelper, DownloadHandler, UploadHandler, CertificateHandler, HeaderHelper, AsyncOperation>::FinishDoRequest(W... + 40 (Mutex.h:33)

2   UnityFramework                    0x00000001046e1448 -[UnityWebRequestDelegate URLSession:task:didCompleteWithError:] + 112 (UnityWebRequest.mm:210)

3   CFNetwork                        0x00000001b4dab234 __51-[NSURLSession delegate_task:didCompleteWithError:]_block_invoke.194 + 648 (Session.mm:692)

4   Foundation                        0x00000001b1d833f0 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 16 (NSOperation.m:1541)

5   Foundation                        0x00000001b1c8e710 -[NSBlockOperation main] + 84 (NSOperation.m:1560)

6   Foundation                        0x00000001b1d8564c __NSOPERATION_IS_INVOKING_MAIN__ + 20 (NSOperation.m:2184)

7   Foundation                        0x00000001b1c8e414 -[NSOperation start] + 740 (NSOperation.m:2201)

8   Foundation                        0x00000001b1d86044 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__ + 20 (NSOperation.m:2215)

9   Foundation                        0x00000001b1d85b10 __NSOQSchedule_f + 180 (NSOperation.m:2226)

10  libdispatch.dylib                0x00000001b1634c8c _dispatch_block_async_invoke2 + 104 (queue.c:525)

11  libdispatch.dylib                0x00000001b1682524 _dispatch_client_callout + 16 (object.m:495)

12  libdispatch.dylib                0x00000001b162ae98 _dispatch_continuation_pop$VARIANT$mp + 412 (inline_internal.h:2484)

13  libdispatch.dylib                0x00000001b162a5ec _dispatch_async_redirect_invoke + 656 (queue.c:803)

14  libdispatch.dylib                0x00000001b1637438 _dispatch_root_queue_drain + 376 (inline_internal.h:2525)

15  libdispatch.dylib                0x00000001b1637bf8 _dispatch_worker_thread2 + 124 (queue.c:6628)

16  libsystem_pthread.dylib          0x00000001b16d3b38 _pthread_wqthread + 212 (pthread.c:2364)

17  libsystem_pthread.dylib          0x00000001b16d6740 start_wqthread + 8

the top of the callstack looks the same to me, but it looks like the functions that have called into delegate_task:didCompleteWithError have changed. Unfortunately, we don't have a reliable repro either, but we see similar callstacks with UnityWebRequestProto::FinishDoRequest and UnityWebRequestDelegate::didCompleteWithError coming up in our xcode crash reports every few days.

 

This issue started to happens pretty often for us.

Unity 2019.1.14f1

Percent of devices in the background : 90%
IOS versions distribution:

iOS 13 - 86%
iOS 12 - 11%
iOS 11 - 1%
iOS 9 - 1%
Other - <1%

@Aurimas-Cernius Is this issue fixed in LTS version or in any path?

Code (CSharp):

1. Crashed: com.unity3d.WebOperationQueue (QOS: UNSPECIFIED)
2. 0  libsystem_pthread.dylib        0x1a260ac50 pthread_mutex_lock + 102
3. 1  gamename                      0x1011830c4 UnityWebRequestProto<UnityWebRequestTransport, AtomicRefCounter, RedirectHelper, ResponseHelper, DownloadHandler, UploadHandler, CertificateHandler, HeaderHelper, AsyncOperation>::FinishDoRequest(WebError) + 4349849796
4. 2  gamename                      0x10028b768 -[UnityWebRequestDelegate URLSession:task:didCompleteWithError:] + 204 (UnityWebRequest.mm:204)
5. 3  CFNetwork                      0x1a5d512fc _CFNetworkHTTPConnectionCacheSetLimit + 196508
6. 4  Foundation                     0x1a2cd3cfc __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 24
7. 5  Foundation                     0x1a2bd5c3c -[NSBlockOperation main] + 104
8. 6  Foundation                     0x1a2cd603c __NSOPERATION_IS_INVOKING_MAIN__ + 24
9. 7  Foundation                     0x1a2bd5914 -[NSOperation start] + 752
10. 8  Foundation                     0x1a2cd6a68 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__ + 24
11. 9  Foundation                     0x1a2cd6528 __NSOQSchedule_f + 184
12. 10 libdispatch.dylib              0x1a25acdb4 _dispatch_block_async_invoke2 + 144
13. 11 libdispatch.dylib              0x1a25a033c _dispatch_client_callout + 20
14. 12 libdispatch.dylib              0x1a25a2af8 _dispatch_continuation_pop + 408
15. 13 libdispatch.dylib              0x1a25a2258 _dispatch_async_redirect_invoke + 588
16. 14 libdispatch.dylib              0x1a25af5c0 _dispatch_root_queue_drain + 348
17. 15 libdispatch.dylib              0x1a25afd9c _dispatch_worker_thread2 + 116
18. 16 libsystem_pthread.dylib        0x1a26076d8 _pthread_wqthread + 216
19. 17 libsystem_pthread.dylib        0x1a260d9c8 start_wqthread + 8

Main thread logs

Code (CSharp):

1. com.apple.main-thread
2. 0  libsystem_kernel.dylib         0x1a26e77e4 __ulock_wait + 8
3. 1  libsystem_pthread.dylib        0x1a2608b18 _pthread_join + 404
4. 2  gamename                      0x100f8acd8 PlatformThread::Join(Thread const*) + 131 (PlatformThread.cpp:131)
5. 3  gamename                      0x100f897a0 Thread::WaitForExit(bool) + 4347778976
6. 4  gamename                      0x100f06c54 JobQueue::Shutdown(JobQueue::ShutdownMode) + 4347243604
7. 5  gamename                      0x100c906e8 UnityEngine::Analytics::CloudJobScheduler::Close() + 4344661736
8. 6  gamename                      0x100c93844 DispatcherService::CloseService() + 4344674372
9. 7  gamename                      0x100c841dc BaseUnityAnalytics::CloseService() + 4344611292
10. 8  gamename                      0x100c8b4f4 CallbackArray5<unsigned int, unsigned long long, unsigned long long, unsigned long long, int>::Invoke(unsigned int, unsigned long long, unsigned long long, unsigned long long, int) + 4344640756
11. 9  gamename                      0x100c8b44c AnalyticsSessionService::OnPlayerSessionStateChanged(bool, AnalyticsSessionService::SessionChangeReason, bool) + 4344640588
12. 10 gamename                      0x100c8b3b0 AnalyticsSessionService::OnPlayerStateChanged(AnalyticsSessionService::SessionState, AnalyticsSessionService::SessionChangeReason) + 4344640432
13. 11 gamename                      0x100c8579c CallbackArray::Invoke() + 4344616860
14. 12 gamename                      0x100f3ef30 PlayerCleanup(bool) + 4347473712
15. 13 gamename                      0x1012b8ccc UnityCleanup + 4351118540
16. 14 gamename                      0x10029df0c -[UnityAppController applicationWillTerminate:] + 435 (UnityAppController.mm:435)
17. 15 gamename                      0x1017880a8 -[OneSignalAppDelegate oneSignalApplicationWillTerminate:] + 285 (UIApplicationDelegate+OneSignal.m:285)
18. 16 UIKitCore                      0x1a6a4ea84 -[UIApplication _terminateWithStatus:] + 248
19. 17 UIKitCore                      0x1a61b7718 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 128
20. 18 UIKitCore                      0x1a61b737c -[_UISceneLifecycleMultiplexer forceExitWithTransitionContext:scene:] + 220
21. 19 UIKitCore                      0x1a6a44ac4 -[UIApplication workspaceShouldExit:withTransitionContext:] + 216
22. 20 FrontBoardServices             0x1a7b5bcf8 -[FBSUIApplicationWorkspaceShim workspaceShouldExit:withTransitionContext:] + 88
23. 21 FrontBoardServices             0x1a7b88d68 __83-[FBSWorkspaceScenesClient willTerminateWithTransitionContext:withAcknowledgement:]_block_invoke_2 + 80
24. 22 FrontBoardServices             0x1a7b6debc -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 240
25. 23 FrontBoardServices             0x1a7b88cf4 __83-[FBSWorkspaceScenesClient willTerminateWithTransitionContext:withAcknowledgement:]_block_invoke + 140
26. 24 libdispatch.dylib              0x1a25a033c _dispatch_client_callout + 20
27. 25 libdispatch.dylib              0x1a25a30d4 _dispatch_block_invoke_direct + 264
28. 26 FrontBoardServices             0x1a7baf6c4 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 48
29. 27 FrontBoardServices             0x1a7baf370 -[FBSSerialQueue _queue_performNextIfPossible] + 432
30. 28 FrontBoardServices             0x1a7baf8dc -[FBSSerialQueue _performNextFromRunLoopSource] + 32
31. 29 CoreFoundation                 0x1a287baf4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
32. 30 CoreFoundation                 0x1a287ba48 __CFRunLoopDoSource0 + 84
33. 31 CoreFoundation                 0x1a287b198 __CFRunLoopDoSources0 + 196
34. 32 CoreFoundation                 0x1a2875f38 __CFRunLoopRun + 796
35. 33 CoreFoundation                 0x1a28758f4 CFRunLoopRunSpecific + 480
36. 34 GraphicsServices               0x1acc8c604 GSEventRunModal + 164
37. 35 UIKitCore                      0x1a6a49358 UIApplicationMain + 1944
38. 36 gamename                      0x10028a3f0 main + 41 (main.mm:41)
39. 37 libdyld.dylib                  0x1a26f12dc start + 4

 

This crash is reported via Firebase Crashlytics web service, so unfortunately I can't provide any repro steps. But I have reported bug within report bug tool, and pasted similar information.

 

I have the same issue:

Code (CSharp):

1. Crashed: com.unity3d.WebOperationQueue (QOS: UNSPECIFIED)
2. 0  gamename                          0x10167e6c8 UnityWebRequestProto<UnityWebRequestTransport, AtomicRefCounter, RedirectHelper, ResponseHelper, DownloadHandler, UploadHandler, CertificateHandler, HeaderHelper, AsyncOperation>::FinishDoRequest(WebError) + 593 (UnityWebRequestProto.h:593)
3. 1  gamename                          0x1002ec670 -[UnityWebRequestDelegate URLSession:task:didCompleteWithError:] + 203 (UnityWebRequest.mm:203)
4. 2  CFNetwork                      0x19f2ea420 __51-[NSURLSession delegate_task:didCompleteWithError:]_block_invoke.182 + 252

It happens very frequently, mostly when the user minimizes the application or restores.
For now we are using Unity 2019.2.7f2
@Aurimas-Cernius is this issue fixed in any version?
@vstefaniuk have you figured out how to fix or get around this problem?

 

More similar crash logs (also associated with UnityWebRequestProto):

Code (CSharp):

1. Crashed: Background Job.Worker 2
2. 0  ???                            0xa8c157f4 (Niepełna)
3. 1  gamename                       0x105d971b0 UnityWebRequestProto<UnityWebRequestTransport, AtomicRefCounter, RedirectHelper, ResponseHelper, DownloadHandler, UploadHandler, CertificateHandler, HeaderHelper, AsyncOperation>::Job_ExecuteUnityWebRequest(UnityWebRequestProto<UnityWebRequestTransport, AtomicRefCounter, RedirectHelper, ResponseHelper, DownloadHandler, UploadHandler, CertificateHandler, HeaderHelper, AsyncOperation>*) + 580 (dynamic_array.h:580)
4. 2  gamename                       0x105ad693c JobQueue::Exec(JobInfo*, long long, int) + 393 (JobQueue.cpp:393)
5. 3  gamename                       0x105ad6b0c JobQueue::Steal(JobGroup*, JobInfo*, long long, int, bool) + 667 (JobQueue.cpp:667)
6. 4  gamename                       0x105ad6ca0 JobQueue::ExecuteJobFromQueue() + 824 (JobQueue.cpp:824)
7. 5  gamename                       0x105ad6f3c JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*) + 963 (JobQueue.cpp:963)
8. 6  gamename                       0x105ad6488 JobQueue::WorkLoop(void*) + 1052 (JobQueue.cpp:1052)
9. 7  gamename                       0x105b78e70 Thread::RunThreadWrapper(void*) + 78 (Thread.cpp:78)
10. 8  libsystem_pthread.dylib        0x19d6718fc _pthread_start + 168
11. 9  libsystem_pthread.dylib        0x19d6799d4 thread_start + 8
12.  
13.  
14.  
15.  
16. Crashed: com.unity3d.WebOperationQueue (QOS: UNSPECIFIED)
17. 0  libsystem_pthread.dylib        0x1bd41cc50 pthread_mutex_lock + 102
18. 1  gamename                       0x103e4a63c UnityWebRequestProto<UnityWebRequestTransport, AtomicRefCounter, RedirectHelper, ResponseHelper, DownloadHandler, UploadHandler, CertificateHandler, HeaderHelper, AsyncOperation>::FinishDoRequest(WebError) + 118 (ExtendedAtomicOps-clang-gcc.h:118)
19. 2  gamename                       0x102ab8670 -[UnityWebRequestDelegate URLSession:task:didCompleteWithError:] + 203 (UnityWebRequest.mm:203)
20. 3  CFNetwork                      0x1c0b42904 _CFNetworkHTTPConnectionCacheSetLimit + 196328
21. 4  Foundation                     0x1bdaf2004 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 24
22. 5  Foundation                     0x1bd9f45a4 -[NSBlockOperation main] + 104
23. 6  Foundation                     0x1bdaf4344 __NSOPERATION_IS_INVOKING_MAIN__ + 24
24. 7  Foundation                     0x1bd9f427c -[NSOperation start] + 752
25. 8  Foundation                     0x1bdaf4d70 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__ + 24
26. 9  Foundation                     0x1bdaf4830 __NSOQSchedule_f + 184
27. 10 libdispatch.dylib              0x1bd3bff24 _dispatch_block_async_invoke2 + 144
28. 11 libdispatch.dylib              0x1bd3b35ac _dispatch_client_callout + 20
29. 12 libdispatch.dylib              0x1bd3b5d60 _dispatch_continuation_pop + 408
30. 13 libdispatch.dylib              0x1bd3b54c0 _dispatch_async_redirect_invoke + 588
31. 14 libdispatch.dylib              0x1bd3c2724 _dispatch_root_queue_drain + 348
32. 15 libdispatch.dylib              0x1bd3c2ed0 _dispatch_worker_thread2 + 116
33. 16 libsystem_pthread.dylib        0x1bd4196dc _pthread_wqthread + 216
34. 17 libsystem_pthread.dylib        0x1bd41f9c8 start_wqthread + 8