I resolved my crashes in 2.7

[Gierasimov]

As many of us, I was getting a lot of crashes in 2.7 beta and submitted numerous crash dumps to the automated process. 

Investigating the error log I noticed that ALL my crashes, while at different times, situations, aircraft, all shared the common message logged in the dump:

 

EDCORE: C:\Windows\SYSTEM32\d3d11.dll (this .dll would then be one of the listed below).
EDCORE: # C0000005 ACCESS_VIOLATION at 6E7F6BAE 00:00000000

 

I also noticed the Event ID 1000 pointing to these things:

 

Top occurrence would be:

Faulting application path: E:\DCS World OpenBeta\bin\DCS.exe
Faulting module path: C:\Windows\SYSTEM32\d3d11.dll 

 

Then less frequent:

 

Faulting application path: E:\DCS World OpenBeta\bin\DCS.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll

 

Couple of:

 

Faulting application path: E:\DCS World OpenBeta\bin\DCS.exe
Faulting module path: E:\DCS World OpenBeta\bin\Transport.dll

 

One:

 

Faulting application path: E:\DCS World OpenBeta\bin\DCS.exe
Faulting module path: E:\DCS World OpenBeta\bin\dx11backend.dll

 

Now, I prefer working DCS, so I decided to disable Windows DEP, just to check if that would help me.

 

It did. 

 

Now, as an systems person, I would not recommend disabling Windows DEP, however, since DCS is a 64-bit application and Windows DEP protects all 64 bit files by default, the only option is to disable it, one cannot make an exception for DCS only. 

 

It helped me a lot. No crashes anymore. If you want to try:

 

Open Command Prompt as administrator, then type:

bcdedit.exe /set {current} nx AlwaysOff

Reboot and test,

If you are not happy with it, you can enable it with bcdedit.exe /set {current} nx AlwaysOff command.

 

Do it if you want, don't do it if you don't want. Sharing it here as my DCS runs flawlessly now and I was struggling to run a stable 1 - hour single player mission before.

----------------------------------------------------------------------------------------------------------------------------------------------------------

 

30.04.21 - I re-enabled my DEP now, and testing the new drivers from nVidia -466.27

 

So far I had no crashes in typical scenarios, but testing in progress. 

 

06.06.21 -- good, stable beta

 

Edited May 6, 2021 by Gierasimov
Status update

[Convexrook]

Risky!

[silverdevil]

I would like to suggest turning DEP for just DCS. https://www.online-tech-tips.com/windows-xp/disable-turn-off-dep-windows/ look for section "How To Configure Or Turn Off DEP" 

[Boogdud]

2 hours ago, silverdevil said:

I would like to suggest turning DEP for just DCS. https://www.online-tech-tips.com/windows-xp/disable-turn-off-dep-windows/ look for section "How To Configure Or Turn Off DEP" 

You can't just disable DEP for DCS, as it is a 64bit application.

[Gierasimov]

4 hours ago, Boogdud said:

Even 64bit can be excluded, but its then an extra work to exclude all of needed applications then.

 

6 hours ago, Convexrook said:

Risky!

I know. But makes my DCS run without issues. 

I always fight with SecOps teams at my workplace trying to balance security with usability...

 

Edited April 28, 2021 by Gierasimov

[XPACT]

I will just say this:

 

when you turn DEP off and it really helps with the issue that means that executing program is not using system memory in a safe manner, all kinds of issues can occur if left like that

 

Not to mention all possible exploits and security risks involved with disabling it. I wouldn't do it except for debugging purposes.

[BIGNEWY]

I will mention this thread to the team, thanks for your feedback

 

 

[Gierasimov]

46 minutes ago, BIGNEWY said:

I will mention this thread to the team, thanks for your feedback

 

 

Thank you.

[icemaker]

Still Got crashes!

I made no changes in DCS and it keeps crashing from yesterday!

No mods enabled neither in DCS nor my user folder.

Made a cleanup and repair.

 

dcs.log-20210428-121907.zip dcs.20210428-122326.crash dcs.log

Edited April 28, 2021 by icemaker

[silverdevil]

@icemaker - you probably should start your own topic. but your issue appears to me to be the following:

 

Quote

2021-04-28 12:23:26.015 INFO    EDCORE: C:\WINDOWS\System32\DriverStore\FileRepository\nvmdi.inf_amd64_fd6b823f03746fed\nvwgf2umx.dll
2021-04-28 12:23:26.015 INFO    EDCORE: # C0000005 ACCESS_VIOLATION at 677FDEA3 00:00000000

 

did a quick search for this file name and found lots of crashes for other games. this is a video driver issue.

[lee1hy]

DEP is not possible with DSC 64.

 

CMD does not work. it say "access denied"

[Col. Kernel]

1 hour ago, silverdevil said:

@icemaker - you probably should start your own topic. but your issue appears to me to be the following:

 

 

did a quick search for this file name and found lots of crashes for other games. this is a video driver issue.

 

I had those errors in my logs too, when DCS suddenly started crashing. For me it has helped to roll back Windows Update KB4589212, which was installed on my rig earlier this week:

https://forums.eagle.ru/topic/270049-windows-woes-random-ctd-fixed-by-rolling-back-win10-update-kb4589212-intel-microcode-update/?tab=comments#comment-4646556

[silverdevil]

Interesting. Further research found that this particular update was released in 2020. It was reissued. It was for Intel Microcode for some vulnerability. It appears to be a forced update. But the file itself is from NVIDIA.

[Burt]

17 minutes ago, silverdevil said:

Interesting. Further research found that this particular update was released in 2020. It was reissued. It was for Intel Microcode for some vulnerability. It appears to be a forced update. But the file itself is from NVIDIA.

How’s your R12 running with DCS ?

[silverdevil]

6 hours ago, Burt said:

How’s your R12 running with DCS ?

excellent. i just tried the t45 takeoff from nellis at 10 PM. it was pitch dark. i flew over the city and got a good video. HD versions are still processing. thanks youtube

 

 

 

Edited April 29, 2021 by silverdevil