Build Crash : DirectX 11 & Unity 5.6

Question

After a whole day trying to understand why my build randomly crash during loadings (any loading) after upgrading to Unity 5.2, I finally found something quite odd.

We tested builds on several configurations :

Windows 10 with Nvidia GPU : crash
WIndows 8 with Nvidia GPU : crash
WIndows 7 with AMD GPU : OK
Windows 8 with AMD : OK

Seems Nvidia related...

Log files have more or less validated this hypothesis :

The crash log :

 **nvwgf2umx.dll caused an Access Violation (0xc0000005)**
   in module nvwgf2umx.dll at 0033:ea1132d0.
 
 Error occurred at 2017-04-10_161742.
 10.exe, run by Admin.
 46% memory in use.
 8139 MB physical memory [4364 MB free].
 9419 MB paging file [4078 MB free].
 134217728 MB user address space [134216469 MB free].
 Read from location 00000001 caused an access violation.
 
 Context:
 RDI:    0x07659fb8  RSI: 0x00000000  RAX:   0x0765ac80
 RBX:    0x00000001  RCX: 0x005d8b20  RDX:   0x07659fb8
 RIP:    0xea1132d0  RBP: 0x0765ac80  SegCs: 0x00000033
 EFlags: 0x00010202  RSP: 0x0b77f810  SegSs: 0x0000002b
 R8:    0x00000000  R9: 0x00000001  R10:   0x00000020
 R11:    0x00000000  R12: 0x00000000  R13:   0xe9f40000
 R14:    0x00000000  R15: 0x00000001
 
 (...)
 
 Module 1
 C:\Windows\SYSTEM32\xinput1_3.dll
 Image Base: 0x00400000  Image Size: 0x0001e000
 File Size:  107368      File Time:  2007-04-04_185422
 Version:
    Company:    Microsoft Corporation
    Product:    Microsoft® DirectX for Windows®
    FileDesc:   Microsoft Common Controller API
    FileVer:    9.18.944.0
    ProdVer:    9.18.944.0
 
 Module 2
 C:\Windows\SYSTEM32\xinput1_2.dll
 Image Base: 0x00400000  Image Size: 0x00018000
 File Size:  83736       File Time:  2006-07-28_093108
 Version:
    Company:    Microsoft Corporation
    Product:    Microsoft® DirectX for Windows®
    FileDesc:   Microsoft Common Controller API
    FileVer:    9.14.701.0
    ProdVer:    9.14.701.0
 
 Module 3
 C:\Windows\SYSTEM32\xinput1_1.dll
 Image Base: 0x00400000  Image Size: 0x00018000
 File Size:  83664       File Time:  2006-03-31_123948
 Version:
    Company:    Microsoft Corporation
    Product:    Microsoft® DirectX for Windows®
    FileDesc:   Microsoft Common Controller API
    FileVer:    9.12.589.0
    ProdVer:    9.12.589.0
 
 Module 4
 C:\Program Files\Bonjour\mdnsNSP.dll
 Image Base: 0x69d10000  Image Size: 0x00035000
 File Size:  193824      File Time:  2010-10-07_123616
 Version:
    Company:    Apple Inc.
    Product:    Bonjour
    FileDesc:   Bonjour Namespace Provider
    FileVer:    2.0.4.0
    ProdVer:    2.0.4.0
 
 
 == [end of error.log] ==
 
 
 
 
 ========== OUTPUTING STACK TRACE ==================
 
 0x00007FFBEA1132D0 (nvwgf2umx) OpenAdapter12
 0x00007FFBEA109F50 (nvwgf2umx) OpenAdapter12
 0x00007FFBEA11155F (nvwgf2umx) OpenAdapter12
 0x00007FFBEA111406 (nvwgf2umx) OpenAdapter12
 0x00007FFBEA109CDD (nvwgf2umx) OpenAdapter12
 0x00007FFBEA7E176A (nvwgf2umx) NVAPI_Thunk
 0x00007FFBEAE46841 (nvwgf2umx) NVAPI_Thunk
 0x00007FFC19BE8364 (KERNEL32) BaseThreadInitThunk
 0x00007FFC1C4270D1 (ntdll) RtlUserThreadStart
 
 ========== END OF STACKTRACE ===========
 
 **** Crash! ****

To have a build running fine once again, here is what I did :

Updating Nvidia Drivers : Still Crashing
upgrading to Unity 5.6 : Still crashing
Enabling x86_64 bits : Still crashing
Enabling / Disabling GPU Skinning, Graphics Job : Still Crashing
Removing some dlls, removing some plugins : Still crashing - Disabling DirectX 11 : no more crashes...

So I found my problem, but the solution is quite odd, and is not really a solution. Cause I'm not really sure that disabling DX11 is a really good idea..

Does anyone have a proper solution or know why do I have this issue ?

Thx by advance.

Answer 1

Answer by Paul_Bronowski · May 02, 2017 at 01:20 PM

Can you take a look at my post and see if yours is similar? There are posts all over the web about NVidia's nvwgf2umx.dll crashing games. I'll try disabling DX11 for our projects...

https://forum.unity3d.com/threads/runtime-crash-gfxdeviceclient-getactiverendersurfacewidth-access-violation-0xc0000005.468823/

thanks

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Le_Lag · May 03, 2017 at 08:28 AM 0

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The link you"ve posted yesterday doesn't seem to be the one you wanted to :)

Answer 2

Answer by Le_Lag · May 03, 2017 at 12:36 PM

The link you"ve posted yesterday doesn't seem to be the one you wanted to :)

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Paul_Bronowski · May 03, 2017 at 07:44 PM 0

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Sorry - the forums had a security breach and my post was nuked in the restore. I created a new one...

http://answers.unity3d.com/questions/1348855/runtime-crash-gfxdeviceclientgetactiverendersurfac.html

thanks

PS: If you have your error.dmp from your crash, load it up in Visual Studio, set the symbol path to something like this and hit play to get a better stack...

$$anonymous$$icrosoft Symbol Servers C:\Program Files\Unity\Editor\ C:\Program Files\Unity\Editor\Data\PlaybackEngines\windowsstandalonesupport\Variations\win64_nondevelopment_mono\ C:\Program Files\Unity\Editor\Data\PlaybackEngines\windowsstandalonesupport\Variations\win64_development_mono C:\Program Files\Unity\$$anonymous$$onoDevelop\bin\ [and path to your .exe/.pdb]

thanks

Answer 3

Answer by MaeL0000 · Nov 21, 2018 at 02:49 PM

Some of our users are reporting the same crash with the dll causing an access violation.

What did you mean with "Disable DirectX11" ? Did you mean to say DirectX12?

@Paul_Bronowski did you find a fix?

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Build Crash : DirectX 11 & Unity 5.6

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