Native Crash - LdrpLogFatalUserCallbackException

[Robdon]

Wasn’t sure where to put this, so trying ‘general support’.

Using Windows and built with Unity 2018.4.18f1

About every 3-4 days, I’m getting crash & exception reports in Unity Cloud that our game/demo is crashing with people.

It’s not that often, but it needs to be ‘fixed’ as obviously our game crashing when we are soon to go live is not good, even if it isn’t that often. We’ve had about 200 downloads of our Demo, and probably around 10-15 of these crashes over a month.

I’ve logged a support issue over it, 3 weeks ago, but had nothing back from support to even say what this could be or any help.

Any one any ideas what this could be, there is nothing I can really deduce from the stack trace. And because this is anonymous players playing the game, I don’t have the ability to talk to anyone about it, to help get more info about what the were doing at the time and/or what the effect to them was.

It’s never happened to me personally, and I can’t see any common situation looking at any of the other Meta data from the crash reports in Unity cloud.

I’m presuming this is a bug/problem with the Unity engine/core rather than my code as such, but I’m not sure.

I’m also not 100% sure, but looking at the stack trace, I ‘think’ it might be happening on application exit, rather than ‘mid’ game, but not sure.

Any pointers would be great, thanks.

The stack trace is this:

Thread 0 (crashed)
0 ntdll 0x00007ffe033eb4f4 ZwWaitForMultipleObjects
1 KERNELBASE 0x00007ffdff955fe9 WaitForMultipleObjectsEx
2 KERNELBASE 0x00007ffdff955ede WaitForMultipleObjects
3 UnityPlayer 0x00007ffdac566bfd ?HandleCrash@CrashHandlerInternal@winutils@@QEAAXKKPEBDPEAU_CONTEXT@@PEAU_EXCEPTION_RECORD@@_N@Z
4 UnityPlayer 0x00007ffdac566cae ?HandleCrash@ExternalCrashHandler@winutils@@YAXKKPEAU_EXCEPTION_POINTERS@@@Z
5 UnityPlayer 0x00007ffdac576048 ?ProcessInternalCrash@winutils@@YAHPEAU_EXCEPTION_POINTERS@@_N@Z
6 KERNELBASE 0x00007ffdff9fb980 UnhandledExceptionFilter
7 ntdll 0x00007ffe0341bad1 LdrpLogFatalUserCallbackException
8 ntdll 0x00007ffe033ee640 KiUserCallbackDispatcherHandler
9 ntdll 0x00007ffe033ef7fd RtlpExecuteHandlerForException
10 ntdll 0x00007ffe0335d856 RtlDispatchException
11 ntdll 0x00007ffe033ee72e KiUserExceptionDispatch
12 (<unknown>) 0x000001d67fb303b0 <system symbols missing>
13 UnityPlayer 0x00007ffdac68b1fa ?CleanupClass@Behaviour@@SAXXZ
14 UnityPlayer 0x00007ffdac5e9c30 ?CleanupAllTypes@TypeManager@@QEAAXXZ
15 UnityPlayer 0x00007ffdac7b5c42 ?CleanupEngine@@YAXXZ
16 UnityPlayer 0x00007ffdac7c72a4 ?PlayerCleanup@@YA_N_N@Z
17 UnityPlayer 0x00007ffdac58d226 ?DoQuit@@YA_N_N@Z
18 UnityPlayer 0x00007ffdac594b45 ?PlayerMainWndProc@@YA_JPEAUHWND__@@I_K_J@Z
19 USER32 0x00007ffe01656d91 ?UserCallWinProcCheckWow@@YA_JPEAU_ACTIVATION_CONTEXT@@P6A_JPEAUtagWND@@I_K_J@ZPEAUHWND__@@W4_WM_VALUE@@23PEAXH@Z
20 USER32 0x00007ffe01656a6c DispatchClientMessage
21 USER32 0x00007ffe0165fea3 _fnDWORD
22 ntdll 0x00007ffe033ee6d4 KiUserCallbackDispatcherContinue
23 win32u 0x00007ffe00731164 NtUserMessageCall
24 USER32 0x00007ffe01654746 ?RealDefWindowProcWorker@@YA_JPEAUtagWND@@I_K_JK@Z
25 USER32 0x00007ffe01653f22 ?RealDefWindowProcW@@YA_JPEAUHWND__@@I_K_J@Z
26 uxtheme 0x00007ffdfdaa5d8a <system symbols missing>
27 uxtheme 0x00007ffdfdaaf4c2 <system symbols missing>
28 uxtheme 0x00007ffdfdaa4bb4 <system symbols missing>
29 uxtheme 0x00007ffdfdaa3661 <system symbols missing>
30 USER32 0x00007ffe01654464 DefWindowProcW
31 UnityPlayer 0x00007ffdac595039 ?PlayerMainWndProc@@YA_JPEAUHWND__@@I_K_J@Z
32 USER32 0x00007ffe01656d91 ?UserCallWinProcCheckWow@@YA_JPEAU_ACTIVATION_CONTEXT@@P6A_JPEAUtagWND@@I_K_J@ZPEAUHWND__@@W4_WM_VALUE@@23PEAXH@Z
33 USER32 0x00007ffe01656a6c DispatchClientMessage
34 USER32 0x00007ffe0165fea3 _fnDWORD
35 ntdll 0x00007ffe033ee6d4 KiUserCallbackDispatcherContinue
36 win32u 0x00007ffe007310a4 ZwUserPeekMessage
37 USER32 0x00007ffe01658703 ?_PeekMessage@@YAHPEAUtagMSG@@PEAUHWND__@@IIIH@Z
38 USER32 0x00007ffe01659896 PeekMessageA
39 UnityPlayer 0x00007ffdac5626f0 ?WaitForSignalWithMessagePump@GfxDeviceWorker@@QEAAXXZ
40 UnityPlayer 0x00007ffdac5530c1 ?ShutdownWorkerThread@GfxDeviceClient@@QEAAXXZ
41 UnityPlayer 0x00007ffdac7b5cb1 ?CleanupEngine@@YAXXZ
42 UnityPlayer 0x00007ffdac7c72a4 ?PlayerCleanup@@YA_N_N@Z
43 UnityPlayer 0x00007ffdac58d226 ?DoQuit@@YA_N_N@Z
44 UnityPlayer 0x00007ffdac594b45 ?PlayerMainWndProc@@YA_JPEAUHWND__@@I_K_J@Z
45 USER32 0x00007ffe01656d91 ?UserCallWinProcCheckWow@@YA_JPEAU_ACTIVATION_CONTEXT@@P6A_JPEAUtagWND@@I_K_J@ZPEAUHWND__@@W4_WM_VALUE@@23PEAXH@Z
46 USER32 0x00007ffe01656a6c DispatchClientMessage
47 USER32 0x00007ffe0165fea3 _fnDWORD
48 ntdll 0x00007ffe033ee6d4 KiUserCallbackDispatcherContinue
49 win32u 0x00007ffe00731164 NtUserMessageCall
50 USER32 0x00007ffe01654746 ?RealDefWindowProcWorker@@YA_JPEAUtagWND@@I_K_JK@Z
51 USER32 0x00007ffe01653f22 ?RealDefWindowProcW@@YA_JPEAUHWND__@@I_K_J@Z
52 uxtheme 0x00007ffdfdaa5d8a <system symbols missing>
53 uxtheme 0x00007ffdfdaaf4c2 <system symbols missing>
54 uxtheme 0x00007ffdfdaa4bb4 <system symbols missing>
55 uxtheme 0x00007ffdfdaa3661 <system symbols missing>
56 USER32 0x00007ffe01654464 DefWindowProcW
57 UnityPlayer 0x00007ffdac595039 ?PlayerMainWndProc@@YA_JPEAUHWND__@@I_K_J@Z
58 USER32 0x00007ffe01656d91 ?UserCallWinProcCheckWow@@YA_JPEAU_ACTIVATION_CONTEXT@@P6A_JPEAUtagWND@@I_K_J@ZPEAUHWND__@@W4_WM_VALUE@@23PEAXH@Z
59 USER32 0x00007ffe01656a6c DispatchClientMessage
60 USER32 0x00007ffe0165fea3 _fnDWORD
61 ntdll 0x00007ffe033ee6d4 KiUserCallbackDispatcherContinue
62 win32u 0x00007ffe00731144 NtUserGetMessage
63 USER32 0x00007ffe016658c5 GetMessageA
64 UnityPlayer 0x00007ffdac5929d8 MainMessageLoop
65 UnityPlayer 0x00007ffdac5972b0 ?UnityMainImpl@@YAHPEAUHINSTANCE__@@0PEA_WH@Z
66 UnityPlayer 0x00007ffdac59b50b UnityMain
67 SAMA 0x00007ff779a511fa _scrt_common_main_seh
68 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
69 ntdll 0x00007ffe033c3691 RtlUserThreadStart
70 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 1
0 ntdll 0x00007ffe033ee2f4 NtWaitForWorkViaWorkerFactory
1 ntdll 0x00007ffe03376866 TppWorkerThread
2 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
3 ntdll 0x00007ffe033c3691 RtlUserThreadStart
4 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 2
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 mono-2.0-bdwgc 0x00007ffdb9f25ac8 mono_win32_wait_for_single_object_ex
3 mono-2.0-bdwgc 0x00007ffdba0129fd mono_os_sem_timedwait
4 mono-2.0-bdwgc 0x00007ffdba011795 finalizer_thread
5 mono-2.0-bdwgc 0x00007ffdb9fd4ca8 start_wrapper_internal
6 mono-2.0-bdwgc 0x00007ffdb9fd4a36 start_wrapper
7 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
8 ntdll 0x00007ffe033c3691 RtlUserThreadStart
9 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 3
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 4
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 5
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 6
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 7
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 8
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 9
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 10
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 11
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 12
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 13
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 14
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 15
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 16
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 17
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 18
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 19
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 20
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 21
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 22
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 23
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 24
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 25
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac773abf ?ProcessJobs@JobQueue@@AEAAXPEAX@Z
3 UnityPlayer 0x00007ffdac774c7b ?WorkLoop@JobQueue@@CAPEAXPEAX@Z
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 26
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac8194d5 ?HandleOutOfBufferToReadFrom@ThreadedStreamBuffer@@MEAA?AUDataOffsets@1@U21@@Z
3 UnityPlayer 0x00007ffdac7b8a2c BatchDeleteStep2Threaded
4 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
5 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart
7 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 27
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac688f28 ?StaticThreadEntry@AsyncReadManagerThreaded@@CAPEAXPEAX@Z
3 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
4 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
5 ntdll 0x00007ffe033c3691 RtlUserThreadStart
6 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 28
0 ntdll 0x00007ffe033ee2f4 NtWaitForWorkViaWorkerFactory
1 ntdll 0x00007ffe03376866 TppWorkerThread
2 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
3 ntdll 0x00007ffe033c3691 RtlUserThreadStart
4 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 29
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 UnityPlayer 0x00007ffdac8194d5 ?HandleOutOfBufferToReadFrom@ThreadedStreamBuffer@@MEAA?AUDataOffsets@1@U21@@Z
3 UnityPlayer 0x00007ffdac5592a1 ?RunCommand@GfxDeviceWorker@@IEAA?AW4Status@1@AEAVThreadedStreamBuffer@@@Z
4 UnityPlayer 0x00007ffdac5622ab ?RunExt@GfxDeviceWorker@@MEAAXAEAVThreadedStreamBuffer@@@Z
5 UnityPlayer 0x00007ffdac562387 ?RunGfxDeviceWorker@GfxDeviceWorker@@KAPEAXPEAX@Z
6 UnityPlayer 0x00007ffdac8187e1 ?RunThreadWrapper@Thread@@CAKPEAX@Z
7 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
8 ntdll 0x00007ffe033c3691 RtlUserThreadStart
9 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 30
0 ntdll 0x00007ffe033eaac4 NtRemoveIoCompletion
1 MSWSOCK 0x00007ffdfeedf338 SockAsyncThread
2 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
3 ntdll 0x00007ffe033c3691 RtlUserThreadStart
4 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 31
0 ntdll 0x00007ffe033ee2f4 NtWaitForWorkViaWorkerFactory
1 ntdll 0x00007ffe03376866 TppWorkerThread
2 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
3 ntdll 0x00007ffe033c3691 RtlUserThreadStart
4 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 32
0 win32u 0x00007ffe007396e4 ZwUserMsgWaitForMultipleObjectsEx
1 USER32 0x00007ffe0165fced ?RealMsgWaitForMultipleObjectsEx@@YAKKPEBQEAXKKK@Z
2 dxgi 0x00007ffdfe44d2fa ?WorkerThread@?$ThreadAffinitizedWorkerThread@W4ProxyWindowCommands@@@@KAKPEAX@Z
3 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
4 ntdll 0x00007ffe033c3691 RtlUserThreadStart
5 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 33
0 win32u 0x00007ffe007396e4 ZwUserMsgWaitForMultipleObjectsEx
1 USER32 0x00007ffe0165fced ?RealMsgWaitForMultipleObjectsEx@@YAKKPEBQEAXKKK@Z
2 dxgi 0x00007ffdfe44d2fa ?WorkerThread@?$ThreadAffinitizedWorkerThread@W4ProxyWindowCommands@@@@KAKPEAX@Z
3 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
4 ntdll 0x00007ffe033c3691 RtlUserThreadStart
5 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 34
0 ntdll 0x00007ffe033eaa24 ZwWaitForSingleObject
1 KERNELBASE 0x00007ffdff9491d2 WaitForSingleObjectEx
2 dxgi 0x00007ffdfe436445 FullscreenWatchdogThreadWorker
3 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
4 ntdll 0x00007ffe033c3691 RtlUserThreadStart
5 ntdll 0x00007ffe033c3691 RtlUserThreadStart

Thread 35
0 ntdll 0x00007ffe033ee2f4 NtWaitForWorkViaWorkerFactory
1 ntdll 0x00007ffe03376866 TppWorkerThread
2 KERNEL32 0x00007ffe00e74034 BaseThreadInitThunk
3 ntdll 0x00007ffe033c3691 RtlUserThreadStart
4 ntdll 0x00007ffe033c3691 RtlUserThreadStart

[Soundwolf776]

@Robdon

About every 3-4 days, I’m getting crash & exception reports in Unity Cloud that our game/demo is crashing with people.

Hi,

Had you have any progress with this?
Encountered the same exact issue: demo release, rare crashes with exactly the same report - but I’ve built the demo with 2020.1.0b10. User reported it happened on alt-tab sometimes, but I can’t reproduce it.

[Robdon]

Hi,

No, Unity never responded to my support request or here

I now don’t have crash reporting enabled, as we just launched and I didn’t want to have to deal with GDPR and privacy issues, so we turned it off.

We were getting this one about 2/3 times a week maybe (Along with some other ones that differed though), and I could not figure it out. Totally, I’m guessing we had about 20 reports of it, with about 1000 downloads of the demo, so it’s not a missive problem, but it really should be looked at IMO.

It a shame, and because it is all ‘anonymous’, there was no way I could contact the user at all to ask them what happened and if it was always happening or just once and then it was ok.

[KnuckleCracker]

I see the same issue at about the same ratio. Greater than 10k users of our recent demo, with around 200+ “Ldrp” crashes. I’ve been hopeful that the 2018.4.24 build might fix it (not yet released at the time I write this), since it should address another potential crash issue ( 2019.3 Assertion failed on expression: 'task.rasterData.vertexBuffer == NULL' page-3 ). Memory overwrites can produce mysterious and delayed problems. But, my hope is mostly just wishful thinking.

In my case, I saw it originally get reported twice during a beta of the demo (prior to release). Both times (out of a pool of 30 testers) it did not repeat and happened once to two people. Both times it happened, it was when they were trying to exit the game. In fact in the stack trace, I see “DoQuit” in all of the reports I’ve looked at so far.

I’ve not yet had it reported that it happens when Alt-Tabbing, but then a lot of my players tend to run windowed and never alt-tab.

[ZachAttack9280]

Getting this issue too.

[c3bgames]

It’s occurring for us too a few times every day, we use 2019.4.f1

[fendercodes]

Also seeing this

[rzubek]

Also seeing this native crash, with standalone player build on 2020.2.4f1, with crash reporting enabled.

Looks like a crash… inside the crash handler?

.

Native Crash - LdrpLogFatalUserCallbackException

Native StackTrace:

Thread 0 (crashed)
0   ntdll                              0x00007ff8e942c914 ZwWaitForMultipleObjects
1   KERNELBASE                         0x00007ff8e6c18910 WaitForMultipleObjectsEx
2   KERNELBASE                         0x00007ff8e6c1880e WaitForMultipleObjects
3   UnityPlayer                        0x00007ff8c9adaa7d ?HandleCrash@ExternalCrashHandler@winutils@@AEAAXKKPEBDPEAU_CONTEXT@@PEAU_EXCEPTION_RECORD@@_N@Z
4   UnityPlayer                        0x00007ff8c9adab22 ?HandleCrash@ExternalCrashHandler@winutils@@QEAA_NKKPEAU_EXCEPTION_POINTERS@@@Z
5   UnityPlayer                        0x00007ff8c9aeb1f8 ?ProcessInternalCrash@winutils@@YAHPEAU_EXCEPTION_POINTERS@@_N@Z
6   KERNELBASE                         0x00007ff8e6cdb8b7 UnhandledExceptionFilter
7   ntdll                              0x00007ff8e945f2e8 LdrpLogFatalUserCallbackException
8   ntdll                              0x00007ff8e942fb60 KiUserCallbackDispatcherHandler
9   ntdll                              0x00007ff8e943111f RtlpExecuteHandlerForException
10  ntdll                              0x00007ff8e93db474 RtlDispatchException
11  ntdll                              0x00007ff8e942fc4e KiUserExceptionDispatch
12  UnityPlayer                        0x00007ff8c9b15192 ?RecommitCursorLock@ScreenManagerWin@@QEAAXXZ
13  UnityPlayer                        0x00007ff8c9b1495f ?PlayerMainWndProc@@YA_JPEAUHWND__@@I_K_J@Z
14  USER32                             0x00007ff8e73fe858 ?UserCallWinProcCheckWow@@YA_JPEAU_ACTIVATION_CONTEXT@@P6A_JPEAUtagWND@@I_K_J@ZPEAUHWND__@@W4_WM_VALUE@@23PEAXH@Z
15  USER32                             0x00007ff8e73fe3dc DispatchClientMessage
16  USER32                             0x00007ff8e7410bc3 _fnDWORD
17  ntdll                              0x00007ff8e942fbf4 KiUserCallbackDispatcherContinue
18  win32u                             0x00007ff8e7211064 ZwUserPeekMessage
19  USER32                             0x00007ff8e73fa5c3 ?_PeekMessage@@YAHPEAUtagMSG@@PEAUHWND__@@IIIIH@Z
20  USER32                             0x00007ff8e73f9ad0 PeekMessageA
21  gameoverlayrenderer64              0x00007ff8d811bdbc <system symbols missing>
22  UnityPlayer                        0x00007ff8c9b12798 MainMessageLoop
23  UnityPlayer                        0x00007ff8c9b178c2 ?UnityMainImpl@@YAHPEAUHINSTANCE__@@0PEA_WH@Z
24  UnityPlayer                        0x00007ff8c9b187db UnityMain
25  CoG                                0x00007ff6822a11f2 _scrt_common_main_seh
26  KERNEL32                           0x00007ff8e8786fd4 BaseThreadInitThunk
27  ntdll                              0x00007ff8e93dcec1 RtlUserThreadStart
28  ntdll                              0x00007ff8e93dcec1 RtlUserThreadStart

[Tycho]

I’m getting similar crash reports regularly through cloud diagnostic, but in my case it looks like the crash always happens when the application is quitting, so it’s only a minor issue.

But it would still be nice to be able to fix this, because it’s annoying these keep appearing in the dashboard.

[ElChileVengador]

Just want to add my voice to the chorus here. I’m also getting this error

[wahntin]

Looks very similar to something I have reported over here:

Random unity crashes on windows with 2020.3 URP

Hi, I’m experiencing this crash for multiple users: Native Crash - ?__CxxUnhandledExceptionFilter@@YGJPAU_EXCEPTION_POINTERS@@@Z This is the common ground based on the stats: gpu_version Direct3D 11.0 [level 11.1] GPU: NVIDIA GeForce GTX 1060, NVIDIA GeForce GTX 980 Ti, Radeon RX 580 Series CPU: Multi-core of all kinds Windows 10: 10.0.19041 and 10.0.19042 The thread stack looks like this: Thread 78 (crashed) 0 ntdll 0x00000000771b2f3c _ZwWaitFor…

The only difference is that the UnhandledExceptionFilter is in KERNELBASE - in my case it’s in xinput1_3.

I’m also wondering whether this is just a symptom and the actual exception is buried - at least it seems strange that the thread crashes within the ExternalCrashHandler.

Every crash also has this in one of the threads: HandleOutOfBufferToReadFrom
Is this normal, a symptom of the crash or maybe even the source of the problem?

[Jawsarn]

Getting reports of same native crashes in 2021.3.4f .

[dgoyette]

Getting this on 2021.3.5f:

Thread 0 (crashed)
0 ntdll 0x00007fff5c44da94 NtWaitForMultipleObjects
1 KERNELBASE 0x00007fff5a02cbc0 WaitForMultipleObjectsEx
2 KERNELBASE 0x00007fff5a02cabe WaitForMultipleObjects
3 UnityPlayer 0x00007ffec473bddd winutils::ExternalCrashHandler::HandleCrash (C:\buildslave\unity\build\PlatformDependent\Win\ExternalCrashHandler.cpp:356)
4 UnityPlayer 0x00007ffec473be82 winutils::ExternalCrashHandler::HandleCrash (C:\buildslave\unity\build\PlatformDependent\Win\ExternalCrashHandler.cpp:426)
5 UnityPlayer 0x00007ffec474cdd8 winutils::ProcessInternalCrash (C:\buildslave\unity\build\PlatformDependent\Win\WinUtils.cpp:596)
6 KERNELBASE 0x00007fff5a0f0057 UnhandledExceptionFilter
7 ntdll 0x00007fff5c47f568 LdrpLogFatalUserCallbackException
8 ntdll 0x00007fff5c450ce0 KiUserCallbackDispatcherHandler
9 ntdll 0x00007fff5c45229f RtlpExecuteHandlerForException
10 ntdll 0x00007fff5c401454 RtlDispatchException
11 ntdll 0x00007fff5c450dce KiUserExceptionDispatcher
12 UnityPlayer 0x00000000004db60d (C:\buildslave\unity\build\Runtime\Threads\ThreadedStreamBuffer.h:202)
13 UnityPlayer 0x00000000004db60d (C:\buildslave\unity\build\Runtime\Threads\ThreadedStreamBuffer.h:347)
14 UnityPlayer 0x00000000004db60d (C:\buildslave\unity\build\Runtime\Threads\ThreadedStreamBuffer.h:420)
15 UnityPlayer 0x00007ffec43cb60d CleanupBatchDelete (C:\buildslave\unity\build\Runtime\Misc\BatchDeleteObjects.cpp:59)
16 UnityPlayer 0x00007ffec43c7f5c CleanupEngine (C:\buildslave\unity\build\Runtime\Misc\SaveAndLoadHelper.cpp:595)
17 UnityPlayer 0x00007ffec43db88e PlayerCleanup (C:\buildslave\unity\build\Runtime\Misc\Player.cpp:668)
18 UnityPlayer 0x00007ffec45c05d6 DoQuit (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:216)
19 UnityPlayer 0x00007ffec45c4b89 PlayerMainWndProc (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:985)
20 USER32 0x00007fff5b5be858 UserCallWinProcCheckWow
21 USER32 0x00007fff5b5be3dc DispatchClientMessage
22 USER32 0x00007fff5b5d0bc3 _fnDWORD
23 ntdll 0x00007fff5c450d74 KiUserCallbackDispatcherContinue
24 win32u 0x00007fff59d91124 NtUserMessageCall
25 USER32 0x00007fff5b5bcaf5 RealDefWindowProcWorker
26 USER32 0x00007fff5b5bc2af RealDefWindowProcW
27 uxtheme 0x00007fff570d96f2 ?DoMsgDefault@@YA_JPEBU_THEME_MSG@@@Z
28 uxtheme 0x00007fff570f3452 OnDwpSysCommand
29 uxtheme 0x00007fff570db7d9 ThemeDefWindowProc
30 uxtheme 0x00007fff570db241 ThemeDefWindowProcW
31 USER32 0x00007fff5b5bc7e3 DefWindowProcW
32 UnityPlayer 0x00007ffec45c505e PlayerMainWndProc (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:1119)
33 USER32 0x00007fff5b5be858 UserCallWinProcCheckWow
34 USER32 0x00007fff5b5be3dc DispatchClientMessage
35 USER32 0x00007fff5b5d0bc3 _fnDWORD
36 ntdll 0x00007fff5c450d74 KiUserCallbackDispatcherContinue
37 win32u 0x00007fff59d91064 ZwUserPeekMessage
38 USER32 0x00007fff5b5ba5c3 PeekMessage
39 USER32 0x00007fff5b5b9ad0 PeekMessageA
40 gameoverlayrenderer64 0x00007fff27c87614 <symbols missing for uuid: 2D919B8734FC44F68B5662C23E46C47F2>
41 UnityPlayer 0x00007ffec4293fc4 GfxPlatformSemaphore::WaitForHandleWithMessagePump (C:\buildslave\unity\build\Runtime\GfxDevice\utilities\GfxPlatformSemaphore.cpp:85)
42 UnityPlayer 0x00007ffec43c7ea5 CleanupEngine (C:\buildslave\unity\build\Runtime\Misc\SaveAndLoadHelper.cpp:570)
43 UnityPlayer 0x00007ffec43db88e PlayerCleanup (C:\buildslave\unity\build\Runtime\Misc\Player.cpp:668)
44 UnityPlayer 0x00007ffec45c05d6 DoQuit (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:216)
45 UnityPlayer 0x00007ffec45c4b89 PlayerMainWndProc (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:985)
46 USER32 0x00007fff5b5be858 UserCallWinProcCheckWow
47 USER32 0x00007fff5b5be3dc DispatchClientMessage
48 USER32 0x00007fff5b5d0bc3 _fnDWORD
49 ntdll 0x00007fff5c450d74 KiUserCallbackDispatcherContinue
50 win32u 0x00007fff59d91124 NtUserMessageCall
51 USER32 0x00007fff5b5bcaf5 RealDefWindowProcWorker
52 USER32 0x00007fff5b5bc2af RealDefWindowProcW
53 uxtheme 0x00007fff570d96f2 ?DoMsgDefault@@YA_JPEBU_THEME_MSG@@@Z
54 uxtheme 0x00007fff570f3452 OnDwpSysCommand
55 uxtheme 0x00007fff570db7d9 ThemeDefWindowProc
56 uxtheme 0x00007fff570db241 ThemeDefWindowProcW
57 USER32 0x00007fff5b5bc7e3 DefWindowProcW
58 UnityPlayer 0x00007ffec45c505e PlayerMainWndProc (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:1119)
59 USER32 0x00007fff5b5be858 UserCallWinProcCheckWow
60 USER32 0x00007fff5b5be3dc DispatchClientMessage
61 USER32 0x00007fff5b5d0bc3 _fnDWORD
62 ntdll 0x00007fff5c450d74 KiUserCallbackDispatcherContinue
63 win32u 0x00007fff59d91064 ZwUserPeekMessage
64 USER32 0x00007fff5b5ba5c3 PeekMessage
65 USER32 0x00007fff5b5b9ad0 PeekMessageA
66 gameoverlayrenderer64 0x00007fff27c87614 <symbols missing for uuid: 2D919B8734FC44F68B5662C23E46C47F2>
67 UnityPlayer 0x00007ffec4293fc4 GfxPlatformSemaphore::WaitForHandleWithMessagePump (C:\buildslave\unity\build\Runtime\GfxDevice\utilities\GfxPlatformSemaphore.cpp:85)
68 UnityPlayer 0x00007ffec471cd12 GfxDeviceClient::AcquireThreadOwnership (C:\buildslave\unity\build\Runtime\GfxDevice\threaded\GfxDeviceClient.cpp:3298)
69 UnityPlayer 0x00007ffec45c5fda ScreenManagerWin::SetResolutionImmediate (C:\buildslave\unity\build\PlatformDependent\WinPlayer\ScreenManagerWin.cpp:553)
70 UnityPlayer 0x00007ffec42c443d ScreenManager::SetRequestedResolution (C:\buildslave\unity\build\Runtime\Graphics\ScreenManager.cpp:224)
71 UnityPlayer 0x00007ffec45c5b38 ScreenManagerWin::SetRequestedResolution (C:\buildslave\unity\build\PlatformDependent\WinPlayer\ScreenManagerWin.cpp:441)
72 UnityPlayer 0x00007ffec43cbd7a ExecutePlayerLoop (C:\buildslave\unity\build\Runtime\Misc\PlayerLoop.cpp:384)
73 UnityPlayer 0x00007ffec43cbe20 ExecutePlayerLoop (C:\buildslave\unity\build\Runtime\Misc\PlayerLoop.cpp:408)
74 UnityPlayer 0x00007ffec43ce728 PlayerLoop (C:\buildslave\unity\build\Runtime\Misc\PlayerLoop.cpp:514)
75 UnityPlayer 0x00007ffec45c444a PerformMainLoop (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:330)
76 UnityPlayer 0x00007ffec45c317b MainMessageLoop (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:1246)
77 UnityPlayer 0x00007ffec45c7947 UnityMainImpl (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:1763)
78 UnityPlayer 0x00007ffec45c94ab UnityMain (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:1803)
79 GraviaDemo 0x00000000000011d1 invoke_main (d:\agent_work\63\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:118)
80 GraviaDemo 0x00007ff77bc611f2 _scrt_common_main_seh (d:\agent_work\63\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288)
81 KERNEL32 0x00007fff5b147034 BaseThreadInitThunk
82 ntdll 0x00007fff5c402651 RtlUserThreadStart
83 ntdll 0x00007fff5c402651 RtlUserThreadStart

Would be helpful to get confirmation as to whether this point to an issue with the engine itself, or something users are doing “wrong”.

[OneManArmy3D]

2020.3.39f1
Native Crash - LdrpLogFatalUserCallbackException

Impacted users: 5
Seems that only players on low-end systems affected with integrated graphics.

Thread 0 (crashed)
0 ntdll 0x00007ffe833446d4 NtWaitForMultipleObjects
1 KERNELBASE 0x00007ffe80adfb50 WaitForMultipleObjectsEx
2 KERNELBASE 0x00007ffe80adfa4e WaitForMultipleObjects
3 UnityPlayer 0x00007ffe32332df2 winutils::ExternalCrashHandler::HandleCrash (C:\buildslave\unity\build\PlatformDependent\Win\ExternalCrashHandler.cpp:350)
4 UnityPlayer 0x00007ffe32332e82 winutils::ExternalCrashHandler::HandleCrash (C:\buildslave\unity\build\PlatformDependent\Win\ExternalCrashHandler.cpp:422)
5 UnityPlayer 0x00007ffe323449a8 winutils::ProcessInternalCrash (C:\buildslave\unity\build\PlatformDependent\Win\WinUtils.cpp:596)
6 KERNELBASE 0x00007ffe80bd5e31 UnhandledExceptionFilter
7 ntdll 0x00007ffe8337bd22 LdrpLogFatalUserCallbackException
8 ntdll 0x00007ffe83347a40 KiUserCallbackDispatcherHandler
9 ntdll 0x00007ffe83348b1f RtlpExecuteHandlerForException
10 ntdll 0x00007ffe832d5b9a RtlDispatchException
11 ntdll 0x00007ffe83347b2e KiUserExceptionDispatcher
12 UnityPlayer 0x000000000053fe52 (C:\buildslave\unity\build\Runtime\Graphics\ScreenManager.h:187)
13 UnityPlayer 0x00007ffe3236fe52 ScreenManagerWin::RecommitCursorLock (C:\buildslave\unity\build\PlatformDependent\WinPlayer\ScreenManagerWin.cpp:675)
14 UnityPlayer 0x00007ffe3236f663 PlayerMainWndProc (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:1057)
15 USER32 0x00007ffe82541c4c UserCallWinProcCheckWow
16 USER32 0x00007ffe8254179c DispatchClientMessage
17 USER32 0x00007ffe82554c0d _fnDWORD
18 ntdll 0x00007ffe83347ad4 KiUserCallbackDispatcherContinue
19 win32u 0x00007ffe80a613b4 ZwUserPeekMessage
20 USER32 0x00007ffe82549f0f PeekMessage
21 USER32 0x00007ffe82549c29 PeekMessageA
22 UnityPlayer 0x00007ffe3236d3d6 MainMessageLoop (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:1216)
23 UnityPlayer 0x00007ffe32372582 UnityMainImpl (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:1722)
24 UnityPlayer 0x00007ffe323734fb UnityMain (C:\buildslave\unity\build\PlatformDependent\WinPlayer\WinMain.cpp:1762)
25 SkillWarz 0x00000000000011d1 invoke_main (d:\agent\_work\4\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:118)
26 SkillWarz 0x00007ff70d8511f2 _scrt_common_main_seh (d:\agent\_work\4\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288)
27 KERNEL32 0x00007ffe82c154e0 BaseThreadInitThunk
28 ntdll 0x00007ffe832a485b RtlUserThreadStart
29 ntdll 0x00007ffe832a485b RtlUserThreadStart

Thread 1
0 ntdll 0x00007ffe833446d4 NtWaitForMultipleObjects
1 KERNELBASE 0x00007ffe80adfb50 WaitForMultipleObjectsEx
2 combase 0x00007ffe820efb98 <symbols missing for uuid: 91C40292F04F51FFB7048693F6BCCF7C1>
3 combase 0x00007ffe820efa0a <symbols missing for uuid: 91C40292F04F51FFB7048693F6BCCF7C1>
4 combase 0x00007ffe820ef80c <symbols missing for uuid: 91C40292F04F51FFB7048693F6BCCF7C1>
5 combase 0x00007ffe820ef789 <symbols missing for uuid: 91C40292F04F51FFB7048693F6BCCF7C1>
6 KERNEL32 0x00007ffe82c154e0 BaseThreadInitThunk
7 ntdll 0x00007ffe832a485b RtlUserThreadStart
8 ntdll 0x00007ffe832a485b RtlUserThreadStart

Thread 2
0 ntdll 0x00007ffe83347734 ZwWaitForWorkViaWorkerFactory
1 ntdll 0x00007ffe832b6cdf TppWorkerThread
2 KERNEL32 0x00007ffe82c154e0 BaseThreadInitThunk
3 ntdll 0x00007ffe832a485b RtlUserThreadStart
4 ntdll 0x00007ffe832a485b RtlUserThreadStart

Thread 3
0 ntdll 0x00007ffe83347734 ZwWaitForWorkViaWorkerFactory
1 ntdll 0x00007ffe832b6cdf TppWorkerThread
2 KERNEL32 0x00007ffe82c154e0 BaseThreadInitThunk
3 ntdll 0x00007ffe832a485b RtlUserThreadStart
4 ntdll 0x00007ffe832a485b RtlUserThreadStart

Thread 4
0 ntdll 0x00007ffe83343ca4 ZwRemoveIoCompletion
1 mswsock 0x00007ffe7fca10ab SockAsyncThread
2 KERNEL32 0x00007ffe82c154e0 BaseThreadInitThunk
3 ntdll 0x00007ffe832a485b RtlUserThreadStart
4 ntdll 0x00007ffe832a485b RtlUserThreadStart

Thread 5
0 ntdll 0x00007ffe83347734 ZwWaitForWorkViaWorkerFactory
1 ntdll 0x00007ffe832b6cdf TppWorkerThread
2 KERNEL32 0x00007ffe82c154e0 BaseThreadInitThunk
3 ntdll 0x00007ffe832a485b RtlUserThreadStart
4 ntdll 0x00007ffe832a485b RtlUserThreadStart

[xelanoimis]

Me too
I spot some “DoQuit” in there. Hopefully it’s happening when players are quitting.

Device: 81DE (LENOVO)
OS version: Windows 10 (10.0.0) 64bit
CPU: Intel(R) Core™ i5-8250U CPU @ 1.60GHz
GFX: Intel(R) UHD Graphics 620
Unity version: 2019.4.2f1

Thread 0 (crashed)
0 ntdll 0x00007ff9fdb446d4 NtWaitForMultipleObjects
1 KERNELBASE 0x00007ff9fafbf180 WaitForMultipleObjectsEx
2 KERNELBASE 0x00007ff9fafbf07e WaitForMultipleObjects
3 UnityPlayer 0x00007ff98449a3fd ?HandleCrash@ExternalCrashHandler@winutils@@AEAAXKKPEBDPEAU_CONTEXT@@PEAU_EXCEPTION_RECORD@@N@Z
4 UnityPlayer 0x00007ff98449a4a2 ?HandleCrash@ExternalCrashHandler@winutils@@QEAA_NKKPEAU_EXCEPTION_POINTERS@@@Z
5 UnityPlayer 0x00007ff9844a68b8 ?ProcessInternalCrash@winutils@@YAHPEAU_EXCEPTION_POINTERS@@N@Z
6 KERNELBASE 0x00007ff9fb0b5d81 UnhandledExceptionFilter
7 ntdll 0x00007ff9fdb7bd22 LdrpLogFatalUserCallbackException
8 ntdll 0x00007ff9fdb47a40 KiUserCallbackDispatcherHandler
9 ntdll 0x00007ff9fdb48b1f RtlpExecuteHandlerForException
10 ntdll 0x00007ff9fdad5b9a RtlDispatchException
11 ntdll 0x00007ff9fdb47b2e KiUserExceptionDispatcher
12 () 0x000001c040072a90
13 UnityPlayer 0x00007ff9845c8bba ?CleanupClass@Behaviour@@SAXXZ
14 UnityPlayer 0x00007ff984523400 ?CleanupAllTypes@TypeManager@@QEAAXXZ
15 UnityPlayer 0x00007ff98470cc82 ?CleanupEngine@@YAXXZ
16 UnityPlayer 0x00007ff98471e477 ?PlayerCleanup@@YA_N_N@Z
17 UnityPlayer 0x00007ff9844c81e6 ?DoQuit@@YA_N_N@Z
18 UnityPlayer 0x00007ff9844cbd44 ?PlayerMainWndProc@@YA_JPEAUHWND@@I_K_J@Z
19 USER32 0x00007ff9fd411c4c UserCallWinProcCheckWow
20 USER32 0x00007ff9fd41179c DispatchClientMessage
21 USER32 0x00007ff9fd424c0d fnDWORD
22 ntdll 0x00007ff9fdb47ad4 KiUserCallbackDispatcherContinue
23 win32u 0x00007ff9fb481434 NtUserMessageCall
24 USER32 0x00007ff9fd40e7a8 RealDefWindowProcWorker
25 USER32 0x00007ff9fd40df6f RealDefWindowProcW
26 uxtheme 0x00007ff9f868a210 ?DoMsgDefault@@YA_JPEBU_THEME_MSG@@@Z
27 uxtheme 0x00007ff9f8687132 OnDwpSysCommand
28 uxtheme 0x00007ff9f869032e ThemeDefWindowProc
29 uxtheme 0x00007ff9f868fc91 ThemeDefWindowProcW
30 USER32 0x00007ff9fd40e575 DefWindowProcW
31 UnityPlayer 0x00007ff9844cc19d ?PlayerMainWndProc@@YA_JPEAUHWND_@@I_K_J@Z
32 USER32 0x00007ff9fd411c4c UserCallWinProcCheckWow
33 USER32 0x00007ff9fd41179c DispatchClientMessage
34 USER32 0x00007ff9fd424c0d fnDWORD
35 ntdll 0x00007ff9fdb47ad4 KiUserCallbackDispatcherContinue
36 win32u 0x00007ff9fb4813b4 ZwUserPeekMessage
37 USER32 0x00007ff9fd419f0f PeekMessage
38 USER32 0x00007ff9fd419c29 PeekMessageA
39 gameoverlayrenderer64 0x00007ff9c3297604
40 UnityPlayer 0x00007ff9844952f0 ?WaitForSignalWithMessagePump@GfxDeviceWorker@@QEAAXXZ
41 UnityPlayer 0x00007ff9844838e1 ?ShutdownWorkerThread@GfxDeviceClient@@QEAAXXZ
42 UnityPlayer 0x00007ff98470ccf6 ?CleanupEngine@@YAXXZ
43 UnityPlayer 0x00007ff98471e477 ?PlayerCleanup@@YA_N_N@Z
44 UnityPlayer 0x00007ff9844c81e6 ?DoQuit@@YA_N_N@Z
45 UnityPlayer 0x00007ff9844cbd44 ?PlayerMainWndProc@@YA_JPEAUHWND_@@I_K_J@Z
46 USER32 0x00007ff9fd411c4c UserCallWinProcCheckWow
47 USER32 0x00007ff9fd41179c DispatchClientMessage
48 USER32 0x00007ff9fd424c0d fnDWORD
49 ntdll 0x00007ff9fdb47ad4 KiUserCallbackDispatcherContinue
50 win32u 0x00007ff9fb481434 NtUserMessageCall
51 USER32 0x00007ff9fd40e7a8 RealDefWindowProcWorker
52 USER32 0x00007ff9fd40df6f RealDefWindowProcW
53 uxtheme 0x00007ff9f868a210 ?DoMsgDefault@@YA_JPEBU_THEME_MSG@@@Z
54 uxtheme 0x00007ff9f8687132 OnDwpSysCommand
55 uxtheme 0x00007ff9f869032e ThemeDefWindowProc
56 uxtheme 0x00007ff9f868fc91 ThemeDefWindowProcW
57 USER32 0x00007ff9fd40e575 DefWindowProcW
58 UnityPlayer 0x00007ff9844cc19d ?PlayerMainWndProc@@YA_JPEAUHWND_@@I_K_J@Z
59 USER32 0x00007ff9fd411c4c UserCallWinProcCheckWow
60 USER32 0x00007ff9fd41179c DispatchClientMessage
61 USER32 0x00007ff9fd424c0d fnDWORD
62 ntdll 0x00007ff9fdb47ad4 KiUserCallbackDispatcherContinue
63 win32u 0x00007ff9fb481414 NtUserGetMessage
64 USER32 0x00007ff9fd41a286 GetMessageA
65 gameoverlayrenderer64 0x00007ff9c32974b5
66 UnityPlayer 0x00007ff9844ca328 MainMessageLoop
67 UnityPlayer 0x00007ff9844ce2ec ?UnityMainImpl@@YAHPEAUHINSTANCE_@@0PEA_WH@Z
68 UnityPlayer 0x00007ff9844d1ddb UnityMain
69 Raiders Of The Lost Island 0x00007ff74ba311f2 _scrt_common_main_seh
70 KERNEL32 0x00007ff9fcd95550 BaseThreadInitThunk
71 ntdll 0x00007ff9fdaa485b RtlUserThreadStart
72 ntdll 0x00007ff9fdaa485b RtlUserThreadStart

[PieterM2H]

This is the only thread containing the error we have: RecommitCursorLock

From the little experimention we’ve done, we concluded the error results when

1. Unity is quitting
2. Unloading is taking too long (the window is freezing)
3. The user clicks on the window whilst quitting.

So I think Unity tries to change the CursorLockState whilst freezing, resulting in a crash.

Either Unity needs to apply a fix or Scenes needs to be smaller to unload.
We will just ignore the crashes for now on, since users are already quitting