Immediate iOS crash - il2cpp::vm::Class::IsSubclassOf

[Wawro01]

Hi All !

After porting game to Unity 5.3 game crashes immediately after splash screen on some devices .
Game is crashing at 100% at iPhone 6+ with iOS 8.4. Game crashed 10 times at iPad mini 2 with iOS 8.1.3 and then it started working and never crashed again.

Game was tested at 7 iOS devices, crashes were occured only on 2 of them.

Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Subtype: unknown at 0x0000000107e5fff8
Triggered by Thread: 0

Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 soldiers 0x0000000101a0ae00 il2cpp::vm::Class::IsSubclassOf(TypeInfo*, TypeInfo*, bool) (Class.cpp:690)
1 soldiers 0x0000000101a0ad20 il2cpp::vm::Class::IsSubclassOf(TypeInfo*, TypeInfo*, bool) (Class.cpp:659)
2 soldiers 0x0000000101327ccc CreateMonoScriptCache(UnityStr const&, ScriptingClass*, InitScriptingCacheType, Object*) (MonoScriptCache.cpp:619)
3 soldiers 0x0000000101327f54 FindOrCreateMonoScriptCache(ScriptingClass*, InitScriptingCacheType, Object*) (MonoScriptCache.cpp:636)
4 soldiers 0x00000001013245a4 MonoScript::Rebuild(ScriptingClass*) (MonoScript.cpp:158)
5 soldiers 0x000000010134a35c PersistentManager::PostReadActivationQueue(int, TypeTree const*, bool) (PersistentManager.cpp:1158)
6 soldiers 0x000000010134b0d4 PersistentManager::LoadFileCompletelyThreaded(std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator > const&, long long*, int*, int, bool, LoadProgress&) (PersistentManager.cpp:1624)
7 soldiers 0x000000010134b230 PersistentManager::LoadFileCompletely(std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator > const&) (PersistentManager.cpp:1653)
8 soldiers 0x00000001011a756c PlayerLoadGlobalManagers(char const*, char const*, unsigned int) (ManagerContextLoading.cpp:112)
9 soldiers 0x00000001012db9bc PlayerInitEngineGraphics(bool) (Player.cpp:720)
10 soldiers 0x0000000101544668 UnityInitApplicationGraphics (LibEntryPoint.mm:207)
11 soldiers 0x000000010009b454 -[UnityAppController startUnity:] (UnityAppController.mm:109)
12 Foundation 0x000000018577417c __NSFireDelayedPerform + 420
13 CoreFoundation 0x0000000184838128 CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION + 24
14 CoreFoundation 0x0000000184837dd8 __CFRunLoopDoTimer + 884
15 CoreFoundation 0x0000000184835824 __CFRunLoopRun + 1368
16 CoreFoundation 0x00000001847612d0 CFRunLoopRunSpecific + 392
17 GraphicsServices 0x000000018e1b76f8 GSEventRunModal + 164
18 UIKit 0x000000018935ef3c UIApplicationMain + 1484
19 soldiers 0x0000000100089958 main (main.mm:32)
20 libdyld.dylib 0x0000000196bfea04 start + 0

Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x0000000196cfcc24 kevent64 + 8
1 libdispatch.dylib 0x0000000196be1e6c _dispatch_mgr_invoke + 272
2 libdispatch.dylib 0x0000000196bd3998 _dispatch_mgr_thread + 48

Thread 2:
0 libsystem_kernel.dylib 0x0000000196d17c78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000196db12d8 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000196db0eec start_wqthread + 0

Thread 3:
0 libsystem_kernel.dylib 0x0000000196d17c78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000196db12d8 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000196db0eec start_wqthread + 0

Thread 4:
0 libsystem_kernel.dylib 0x0000000196d17c78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000196db12d8 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000196db0eec start_wqthread + 0

Thread 5:
0 libsystem_kernel.dylib 0x0000000196d17c78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000196db12d8 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000196db0eec start_wqthread + 0

Thread 6 name: GC Finalizer
Thread 6:
0 libsystem_kernel.dylib 0x0000000196d17078 __psynch_cvwait + 8
1 libsystem_pthread.dylib 0x0000000196db2f28 _pthread_cond_wait + 620
2 soldiers 0x0000000101a042c4 il2cpp::os::posix::PosixWaitObject::Wait(unsigned int, bool) (PosixWaitObject.cpp:128)
3 soldiers 0x00000001019ea1e4 FinalizerThread(void*) (gc.cpp:38)
4 soldiers 0x0000000101a011bc il2cpp::os::RunWrapper(void*) (Thread.cpp:86)
5 soldiers 0x0000000101a06ba8 il2cpp::os::ThreadImpl::ThreadStartWrapper(void*) (ThreadImpl.cpp:110)
6 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
7 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
8 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 7 name: BatchDeleteObjects
Thread 7:
0 libsystem_kernel.dylib 0x0000000196cfce48 semaphore_wait_trap + 8
1 libdispatch.dylib 0x0000000196bdff3c _dispatch_semaphore_wait_slow + 252
2 soldiers 0x000000010136b5c4 ThreadedStreamBuffer::HandleReadOverflow(unsigned int&, unsigned int&) (ThreadedStreamBuffer.cpp:306)
3 soldiers 0x00000001012d8130 BatchDeleteStep2Threaded(void*) (BatchDeleteObjects.cpp:97)
4 soldiers 0x000000010136ac3c Thread::RunThreadWrapper(void*) (Thread.cpp:40)
5 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
6 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
7 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 8 name: AsyncReadManager
Thread 8:
0 libsystem_kernel.dylib 0x0000000196cfce48 semaphore_wait_trap + 8
1 libdispatch.dylib 0x0000000196bdff3c _dispatch_semaphore_wait_slow + 252
2 soldiers 0x000000010138c438 AsyncReadManagerThreaded::ThreadEntry() (Semaphore.h:22)
3 soldiers 0x000000010138c254 AsyncReadManagerThreaded::StaticThreadEntry(void*) (AsyncReadManagerThreaded.cpp:53)
4 soldiers 0x000000010136ac3c Thread::RunThreadWrapper(void*) (Thread.cpp:40)
5 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
6 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
7 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 9:
0 libsystem_kernel.dylib 0x0000000196d17c78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000196db12d8 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000196db0eec start_wqthread + 0

Thread 10 name: WebThread
Thread 10:
0 libsystem_kernel.dylib 0x0000000196cfce0c mach_msg_trap + 8
1 libsystem_kernel.dylib 0x0000000196cfcc84 mach_msg + 68
2 CoreFoundation 0x0000000184837720 __CFRunLoopServiceMachPort + 196
3 CoreFoundation 0x0000000184835674 __CFRunLoopRun + 936
4 CoreFoundation 0x00000001847612d0 CFRunLoopRunSpecific + 392
5 WebCore 0x00000001935e02e0 RunWebThread(void*) + 464
6 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
7 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
8 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 11:
0 libsystem_kernel.dylib 0x0000000196d17c78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000196db12d8 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000196db0eec start_wqthread + 0

Thread 12 name: JavaScriptCore::BlockFree
Thread 12:
0 libsystem_kernel.dylib 0x0000000196d17078 __psynch_cvwait + 8
1 libsystem_pthread.dylib 0x0000000196db2f28 _pthread_cond_wait + 620
2 libc++.1.dylib 0x0000000195cd0d5c std::__1::condition_variable::__do_timed_wait(std::__1::unique_lockstd::__1::mutex&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >) + 136
3 JavaScriptCore 0x0000000185ebe574 JSC::BlockAllocator::waitForDuration(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000l> >) + 176
4 JavaScriptCore 0x0000000185d55588 JSC::BlockAllocator::blockFreeingThreadMain() + 76
5 JavaScriptCore 0x0000000185d50b9c WTF::wtfThreadEntryPoint(void*) + 20
6 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
7 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
8 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 13 name: JavaScriptCore::Marking
Thread 13:
0 libsystem_kernel.dylib 0x0000000196d17078 __psynch_cvwait + 8
1 libsystem_pthread.dylib 0x0000000196db2f28 _pthread_cond_wait + 620
2 libc++.1.dylib 0x0000000195cd0cac std::__1::condition_variable::wait(std::__1::unique_lockstd::__1::mutex&) + 52
3 JavaScriptCore 0x0000000185ffeedc JSC::GCThread::waitForNextPhase() + 152
4 JavaScriptCore 0x0000000185ffef80 JSC::GCThread::gcThreadMain() + 88
5 JavaScriptCore 0x0000000185d50b9c WTF::wtfThreadEntryPoint(void*) + 20
6 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
7 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
8 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 14 name: com.apple.NSURLConnectionLoader
Thread 14:
0 libsystem_kernel.dylib 0x0000000196cfce0c mach_msg_trap + 8
1 libsystem_kernel.dylib 0x0000000196cfcc84 mach_msg + 68
2 CoreFoundation 0x0000000184837720 __CFRunLoopServiceMachPort + 196
3 CoreFoundation 0x0000000184835674 __CFRunLoopRun + 936
4 CoreFoundation 0x00000001847612d0 CFRunLoopRunSpecific + 392
5 CFNetwork 0x000000018423e590 +[NSURLConnection(Loader) _resourceLoadLoop:] + 436
6 Foundation 0x0000000185781db4 NSThread__main + 1068
7 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
8 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
9 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 15 name: com.apple.CFSocket.private
Thread 15:
0 libsystem_kernel.dylib 0x0000000196d17498 __select + 8
1 CoreFoundation 0x000000018483d124 __CFSocketManager + 668
2 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
3 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
4 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 16 name: Worker Thread
Thread 16:
0 libsystem_kernel.dylib 0x0000000196cfce48 semaphore_wait_trap + 8
1 libdispatch.dylib 0x0000000196bdff3c _dispatch_semaphore_wait_slow + 252
2 soldiers 0x00000001012282ac CappedSemaphore::WaitForSignal() (CappedSemaphore.h:63)
3 soldiers 0x0000000101227acc JobQueue::ProcessJobs(void*, bool*) (JobQueue.cpp:726)
4 soldiers 0x0000000101227170 JobQueue::WorkLoop(void*) (JobQueue.cpp:732)
5 soldiers 0x000000010136ac3c Thread::RunThreadWrapper(void*) (Thread.cpp:40)
6 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
7 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
8 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 17 name: AVAudioSession Notify Thread
Thread 17:
0 libsystem_kernel.dylib 0x0000000196cfce0c mach_msg_trap + 8
1 libsystem_kernel.dylib 0x0000000196cfcc84 mach_msg + 68
2 CoreFoundation 0x0000000184837720 __CFRunLoopServiceMachPort + 196
3 CoreFoundation 0x0000000184835674 __CFRunLoopRun + 936
4 CoreFoundation 0x00000001847612d0 CFRunLoopRunSpecific + 392
5 libAVFAudio.dylib 0x00000001831d5020 GenericRunLoopThread::Entry(void*) + 160
6 libAVFAudio.dylib 0x00000001831c7a00 CAPThread::Entry(CAPThread*) + 116
7 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
8 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
9 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 18:
0 libsystem_kernel.dylib 0x0000000196cfce48 semaphore_wait_trap + 8
1 soldiers 0x00000001019364a4 FMOD_OS_Semaphore_Wait(FMOD_OS_SEMAPHORE*) + 12
2 soldiers 0x0000000101951af8 FMOD::callback(void*) + 60
3 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
4 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
5 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 19 name: AURemoteIO::IOThread
Thread 19:
0 libsystem_kernel.dylib 0x0000000196cfce0c mach_msg_trap + 8
1 libsystem_kernel.dylib 0x0000000196cfcc84 mach_msg + 68
2 AudioToolbox 0x0000000183e473ac AURemoteIO::IOThread::Run() + 112
3 AudioToolbox 0x0000000183e4ab90 AURemoteIO::IOThread::Entry(void*) + 8
4 AudioToolbox 0x0000000183d6851c CAPThread::Entry(CAPThread*) + 140
5 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
6 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
7 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

Thread 20:
0 libsystem_kernel.dylib 0x0000000196d17570 __semwait_signal + 8
1 libsystem_c.dylib 0x0000000196c3992c nanosleep + 212
2 libsystem_c.dylib 0x0000000196c39848 usleep + 64
3 soldiers 0x0000000101936018 FMOD_OS_Time_Sleep(unsigned int) + 16
4 soldiers 0x0000000101951ae4 FMOD::callback(void*) + 40
5 libsystem_pthread.dylib 0x0000000196db3dc4 _pthread_body + 160
6 libsystem_pthread.dylib 0x0000000196db3d20 _pthread_start + 156
7 libsystem_pthread.dylib 0x0000000196db0ef4 thread_start + 0

[JoshPeterson]

@Wawro01

Hi All !

After porting game to Unity 5.3 game crashes immediately after splash screen on some devices .
Game is crashing at 100% at iPhone 6+ with iOS 8.4. Game crashed 10 times at iPad mini 2 with iOS 8.1.3 and then it started working and never crashed again.

Game was tested at 7 iOS devices, crashes were occured only on 2 of them.

@Wawro01

Can you submit a bug report for this issue and let me know the bug report number? It looks like a problem we should correct. Thanks.

[Wawro01]

@JoshPeterson

@Wawro01

Can you submit a bug report for this issue and let me know the bug report number? It looks like a problem we should correct. Thanks.

Yes, I submitted it yesterday: 752737.
Thanks !

[JoshPeterson]

@Wawro01

Yes, I submitted it yesterday: 752737.
Thanks !

@Wawro01

Thanks for submitting this bug report, we will investigate it.

[ChrTellefsen]

We got the same crash on Unity5.3.0f4. I am now rebuilding our client with Unity5.3.0f2 in order to check whether it was on that version too.

Cheers,
Christian Tellefsen
CTO
Megapop

[JoshPeterson]

@ChrTellefsen

We got the same crash on Unity5.3.0f4. I am now rebuilding our client with Unity5.3.0f2 in order to check whether it was on that version too.

Cheers,
Christian Tellefsen
CTO
Megapop

@ChrTellefsen

Thanks, please let us know the results.

[ChrTellefsen]

Built the client on 5.3.0f2 from the exact same source and it did not crash.

So:

We had the crash on both an old iPhone5, and a brand new iPad Mini (the 2 devices we tested), on Unity 5.3.0f4, every time.
We had no crash on the same devices on 5.3.0f2.

[JoshPeterson]

@ChrTellefsen

Built the client on 5.3.0f2 from the exact same source and it did not crash.

So:

We had the crash on both an old iPhone5, and a brand new iPad Mini (the 2 devices we tested), on Unity 5.3.0f4, every time.
We had no crash on the same devices on 5.3.0f2.

@ChrTellefsen @wawro1

It looks like we have corrected this issue internally. It seems to be an intermittent problem, and unfortunately we don’t have a work around. However, the fix should be available in the 5.3.0p2 release, which is scheduled for Wednesday of next week.

[Wawro01]

@JoshPeterson

@ChrTellefsen @wawro1

It looks like we have corrected this issue internally. It seems to be an intermittent problem, and unfortunately we don’t have a work around. However, the fix should be available in the 5.3.0p2 release, which is scheduled for Wednesday of next week.

Thank Josh So date will be 23.12 ?

[JoshPeterson]

@Wawro01

Thank Josh So date will be 23.12 ?

@Wawro01

Yes, December 23 is the planned date for 5.3.0p2 now. It is possible that the release will slip, but we will try to avoid that.

[ChrTellefsen]

OK, thank you very much!