Bug We are seeing crashes EXC_BAD_ACCESS KERN_INVALID_ADDRESS on FMOD::SoundGroupI::getNumPlaying

We are using Unity 2021.3.5f1 and on iOS we are seeing these crashes on Firebase Crashlytics, which we are not able to reproduce on our end.

This is the full stack trace:

Crashed: com.apple.main-thread

0  UnityFramework                 0x1256a1c FMOD::SoundGroupI::getNumPlaying(int*) + 3741116

1  UnityFramework                 0x1266c4c FMOD::SystemI::playSound(FMOD_CHANNELINDEX, FMOD::SoundI*, bool, FMOD::ChannelI**) + 3807212

2  UnityFramework                 0x125c840 FMOD::System::playSound(FMOD_CHANNELINDEX, FMOD::Sound*, bool, FMOD::Channel**) + 3765216

3  UnityFramework                 0x88f9d0 SoundHandle::Instance::CreateChannel(SoundHandle&, bool) + 397 (SoundManager.cpp:397)

4  UnityFramework                 0x882530 SampleClip::AllocateChannel(bool, unsigned long long) + 130 (WeakPtr.h:130)

5  UnityFramework                 0x8719e0 AudioSource::Play(double) + 145 (WeakPtr.h:145)

6  UnityFramework                 0x4a1e44 AudioSource_CUSTOM_PlayHelper(ScriptingBackendNativeObjectPtrOpaque*, unsigned long long) + 1379 (AudioBindings.gen.cpp:1379)

7  UnityFramework                 0x14a68f8 UnityEngine.U2D.SpriteShapeGenerator.TessellateContour(UnityEngine.U2D.SpriteShapeGenerator* this) -> void_f7c830754110dc9aeb9050443cd2a04b.cold.10 + 4404193528

8  UnityFramework                 0x1d218b8 UnityEngine.U2D.SpriteShapeGenerator.TessellateContour(UnityEngine.U2D.SpriteShapeGenerator* this) -> void_f7c830754110dc9aeb9050443cd2a04b.cold.10 + 4413085880

9  UnityFramework                 0x1307e80 il2cpp::vm::Runtime::InvokeWithThrow(MethodInfo const*, void*, void**) + 576 (Runtime.cpp:576)

10 UnityFramework                 0x1307cc8 il2cpp::vm::Runtime::Invoke(MethodInfo const*, void*, void**, Il2CppException**) + 570 (Runtime.cpp:570)

11 UnityFramework                 0x6acd00 scripting_method_invoke(ScriptingMethodPtr, ScriptingObjectPtr, ScriptingArguments&, ScriptingExceptionPtr*, bool) + 292 (ScriptingApi_Il2Cpp.cpp:292)

12 UnityFramework                 0x6b9130 ScriptingInvocation::Invoke(ScriptingExceptionPtr*, bool) + 298 (ScriptingInvocation.cpp:298)

13 UnityFramework                 0x6c5e5c Coroutine::InvokeMoveNext(ScriptingExceptionPtr*) + 247 (Coroutine.cpp:247)

14 UnityFramework                 0x6c5a10 Coroutine::Run(bool*) + 271 (Coroutine.cpp:271)

15 UnityFramework                 0x6c5ac4 Coroutine::Run(bool*) + 316 (Coroutine.cpp:316)

16 UnityFramework                 0x503aa0 DelayedCallManager::Update(int) + 187 (CallDelayed.cpp:187)

17 UnityFramework                 0x5bc8ec ExecutePlayerLoop(NativePlayerLoopSystem*) + 383 (PlayerLoop.cpp:383)

18 UnityFramework                 0x5bc92c ExecutePlayerLoop(NativePlayerLoopSystem*) + 407 (PlayerLoop.cpp:407)

19 UnityFramework                 0x5bcb88 PlayerLoop() + 514 (PlayerLoop.cpp:514)

20 UnityFramework                 0xd07244 UnityPlayerLoopImpl(bool) + 330 (LibEntryPoint.mm:330)

21 UnityFramework                 0x16d08 -[UnityAppController(Rendering) repaint] + 238 (UnityAppController+Rendering.mm:238)

22 UnityFramework                 0x16c98 -[UnityAppController(Rendering) repaintDisplayLink] + 72 (UnityAppController+Rendering.mm:72)

23 QuartzCore                     0x28f9c CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 756

24 QuartzCore                     0x155edc CA::Display::DisplayLink::dispatch_deferred_display_links(unsigned int) + 380

25 UIKitCore                      0x652740 _UIUpdateSequenceRun + 84

26 UIKitCore                      0xc99fd0 schedulerStepScheduledMainSection + 172

27 UIKitCore                      0xc9919c runloopSourceCallback + 92

28 CoreFoundation                 0xd5f54 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28

29 CoreFoundation                 0xe232c __CFRunLoopDoSource0 + 176

30 CoreFoundation                 0x66210 __CFRunLoopDoSources0 + 244

31 CoreFoundation                 0x7bba8 __CFRunLoopRun + 836

32 CoreFoundation                 0x80ed4 CFRunLoopRunSpecific + 612

33 GraphicsServices               0x1368 GSEventRunModal + 164

34 UIKitCore                      0x3a23d0 -[UIApplication _run] + 888

35 UIKitCore                      0x3a2034 UIApplicationMain + 340

36 UnityFramework                 0x1683c -[UnityFramework runUIApplicationMainWithArgc:argv:] + 96 (main.mm:96)

On launch we are playing audio from asset bundle [LZ4] programatically.

Any idea what can be the issue.

 

Hi

To give you the context on Splash screen there is VideoPlayer that plays intro video and also title audio that I play before video. Both get loaded on Splash screen launch.

Previously I was playing title audio from Asset Bundle programmatically and to load clip I used

Code (CSharp):

1. AssetBundle.LoadAsset<AudioClip>()

method.

I thought that it could be that audio was not getting loaded from bundle, I removed it from bundle and directly linked it to AudioSource but still seeing the same crash.

What I am not able to figure out why FMOD is crashing.

I am not able to reproduce it on my end.

I am attaching the crash dump from Firebase Crashlytics.

 

I did put

AudioClip.loadState

and that is coming as LOADED and still crashing.