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Fixed in 2021.3.24f1, 2022.2.18f1, 2023.2.0a13



Found in


Issue ID




[iOS] Crash on UnityFramework`::ScheduleDependencies() when Graphics Jobs are enabled



How to reproduce:
1. Open the attached Project
2. Enable "Graphics Jobs (Experimental)" under Project Settings -> Player -> iOS
3. In the Project window, select Assets->_Tech->Build->iOS
4. In the Inspector window, click the "Build" button
5. Launch the built Xcode project on an iOS device
6. Play through the game for 10-15min
7. If a crash does not occur, repeat from step 4

Reproducible with: 2021.3.15f1
Could not test with: 2020.3.44f1, 2021.3.16f1, 2022.2.2f1, 2023.1.0a25 (project requires extensive modification to certain scripts in order to be usable after changing versions)

Reproduced with:
- iPhone 13 (iOS 15.0)
- iPhone 12 mini (iOS 14.1)

- The crash may occur as soon as in the character creation screen, however, it may also occur later

Full stack trace of the crash:
* thread #38, name = 'Metal Submission Thread', stop reason = EXC_BAD_ACCESS (code=1, address=0xbdaec33c3d77c69d)
* frame #0: 0x000000011332eaa0 UnityFramework`::ScheduleDependencies() at JobQueue.cpp:360:11 [opt]
frame #1: 0x000000011333026c UnityFramework`::ScheduleJobMultipleDependencies() at JobQueue.cpp:1593:13 [opt]
frame #2: 0x000000011332bce4 UnityFramework`::SyncFencesNoWorkSteal() at Jobs.cpp:67:40 [opt]
frame #3: 0x0000000113aca180 UnityFramework`DoExecuteSyncFenceForDevices at [opt]
frame #4: 0x0000000113ac9d24 UnityFramework`HandleTaskStream at [opt]
frame #5: 0x0000000113aca1a8 UnityFramework`ThreadEntry at [opt]
frame #6: 0x00000001133e9d78 UnityFramework`::RunThreadWrapper() at Thread.cpp:82:14 [opt]
frame #7: 0x00000001f0c35a60 libsystem_pthread.dylib`_pthread_start + 148

Comments (2)

  1. EminemJ

    Mar 21, 2023 09:50

    Similar issues here. The game randomly crashes when some character(SkinnedMeshRenderer?) meets particle systems.

  2. xodennisxo

    Mar 21, 2023 09:43

    same problem in my project. iphone 14/13 crashes after about 1 min playing. once disabling GRAPHICS JOBS, the crash was gone.
    it rarely crashes on old iphone device, and we didn't meet crash on the android devices we tested.

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