Random crashes while flying mission in 1.2.7

marluk · February 26, 2014

I have crash at random point while flying A-10C mission. I didn't complete mission since 1.2.7 update.

Here is what I have done:

-Delete DCS folder in user saved games folder

-Uninstall DCS and clean install with 'Run as administrator'

-Update/repair c++ runtime and DirectX

-Update graphic card driver

My config is i5, 8GB RAM, SSD, GeForce 760 GTX, HOTAS Worthog, TrackIR 5, Dual monitor but DCS configured to use one fullscreen, Win 7 x64. All DCS modules installed.

These crashes happened while I was flying Sitting Ducks mission but it happens in the others also.

I tried to disable anti virus (avast) and turned of OCGuru too, but crashes persisted.

In attachment are my log files of last two crashes and Windows crash report of last one. If some other data would be useful please let me know (maybe procmon log?).

Any suggestion would be much appreciated.

Thanks

crash_log.zip

Buzpilot · February 26, 2014

Did you change any hardware recently?

marluk · February 26, 2014

No. I didn't added anything new lately.

I'm aware that my description is not enough to diagnose issue, but I hoped that somebody with more experience might recognize cause of the problem from attached log files.

Edited February 26, 2014 by marluk

marluk · February 26, 2014

I took a look into log files. Here are some errors I have found:

dcs.log

00011.716 ERROR WorldPlugIns: Can't load plugin module ./mods/aircrafts/Flaming Cliffs/bin/F15.dll :The specified module could not be found.

...

00016.500 ERROR DXGUI_EDGE_RENDER: Cannot load texture ''

...

00016.802 ERROR VFS: Can't mount './Scripts/Database//CoreModules/WWII Units/Liveries' to '/textures//liveries/'.

00016.804 ERROR VFS: Can't mount './mods/aircrafts/Uh-1H/Liveries' to '/textures//liveries/'.

...

00019.698 ERROR Lua::Config: load error .\Bazar\Effects\Damage/Fire\High\fire.cfg:can't open '.\Bazar\Effects\Damage/Fire\High\fire.cfg'.

...

00026.016 ERROR COCKPITBASE: Cockpit: Clickable - Wrong connector name PNT-BTN-RWR-UNK

...

00351.522 ERROR SOUND: source_is_playing(-1): invalid source

me.log

01219.344 ERROR VFS: add_location {"My Missions", "C:\Users\Marin\Saved Games\DCS\Missions\"}: path already added as "My Missions"

01220.483 ERROR DXGUI_EDGE_RENDER: Cannot load texture ''

Windows exception report

Problem signature:

Problem Event Name: APPCRASH

Application Name: dcs.exe

Application Version: 1.2.7.23803

Application Timestamp: 52f48b5c

Fault Module Name: zlib.dll

Fault Module Version: 1.2.8.0

Fault Module Timestamp: 520bdd97

Exception Code: c00000fd

Exception Offset: 0000000000013417

OS Version: 6.1.7601.2.1.0.256.1

Locale ID: 1050

Additional Information 1: 81d0

Additional Information 2: 81d077d0eebbc275745a36eb9bfd1a91

Additional Information 3: d0f4

Additional Information 4: d0f4b84d8d701b0e6be689fde0a97ef2

Does anybody recognize something?

Thanks!

SkateZilla · February 26, 2014

I took a look into log files. Here are some errors I have found:

dcs.log

00011.716 ERROR WorldPlugIns: Can't load plugin module ./mods/aircrafts/Flaming Cliffs/bin/F15.dll :The specified module could not be found.
...
00016.500 ERROR DXGUI_EDGE_RENDER: Cannot load texture ''
...
00016.802 ERROR VFS: Can't mount './Scripts/Database//CoreModules/WWII Units/Liveries' to '/textures//liveries/'.
00016.804 ERROR VFS: Can't mount './mods/aircrafts/Uh-1H/Liveries' to '/textures//liveries/'.
...
00019.698 ERROR Lua::Config: load error .\Bazar\Effects\Damage/Fire\High\fire.cfg:can't open '.\Bazar\Effects\Damage/Fire\High\fire.cfg'.
...
00026.016 ERROR COCKPITBASE: Cockpit: Clickable - Wrong connector name PNT-BTN-RWR-UNK
...
00351.522 ERROR SOUND: source_is_playing(-1): invalid source

me.log

01219.344 ERROR VFS: add_location {"My Missions", "C:\Users\Marin\Saved Games\DCS\Missions\"}: path already added as "My Missions"
01220.483 ERROR DXGUI_EDGE_RENDER: Cannot load texture ''

Windows exception report

Problem signature:
Problem Event Name: APPCRASH
Application Name: dcs.exe
Application Version: 1.2.7.23803
Application Timestamp: 52f48b5c
Fault Module Name: zlib.dll
Fault Module Version: 1.2.8.0
Fault Module Timestamp: 520bdd97
Exception Code: c00000fd
Exception Offset: 0000000000013417
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1050
Additional Information 1: 81d0
Additional Information 2: 81d077d0eebbc275745a36eb9bfd1a91
Additional Information 3: d0f4
Additional Information 4: d0f4b84d8d701b0e6be689fde0a97ef2

Does anybody recognize something?

Thanks!

Most of the Errors in the ME and DCS Logs are there for everyone.

As for the windows Log:

c00000fd = Stack Overflow, the best why to trace the problem is to do a Stack backtrace

AtaliaA1 · February 26, 2014

Most of the Errors in the ME and DCS Logs are there for everyone.

As for the windows Log:
c00000fd = Stack Overflow, the best why to trace the problem is to do a Stack backtrace

Wasn't a stack overflow related to changing the caching system of Windows? Like deleting caching or setting a limit by doubling the Ram and entering it as the limit for your cache file?

marluk · February 26, 2014

Most of the Errors in the ME and DCS Logs are there for everyone.

As for the windows Log:
c00000fd = Stack Overflow, the best why to trace the problem is to do a Stack backtrace

Wasn't a stack overflow related to changing the caching system of Windows? Like deleting caching or setting a limit by doubling the Ram and entering it as the limit for your cache file?

I'm not sure if I understood this correctly. Are you thinking on virtual memory and page file size?

I saw that exception occurs in zlib.dll. I checked version and it appears that file has latest available version 1.2.8

Stack overflow might be produced by multiple function calls when variables spends all memory reserved for stack. Usually source of the problem is bug in some iteration (usually recursion) that falls in infinite loop. VS has default stack size 1MB so it can be spend really fast no matter how much free RAM you have. I could try some backtraceing but I don't think I will see something useful since I don't have source code?

Indeed I have custom defined page file size because I wanted to be as small as possible. I will monitor memory usage while flying a mission. Maybe we have some type of memory leak in new version that doesn't produce problems when page file is big enough.

marluk · February 27, 2014

I have done little more testing. Overall memory usage stays around 5GB so it is all right.

Anyway, this time I choose to debug application upon crash. Of course I don't have pdb files but I could recognize that DCS crash is caused with problem in uh1_protect.dll. I have two crashes recorded, both with access violation reading exceptions in uh1_protect.dll.

I have bought, installed and registered all dcs modules as befits.

Here are windows exception report, call stack and output from VS for these two crashes. First one happened while flying A-10C in Sitting Ducks mission, and the second one while flying Huey in Fast Mission. Both crashes happened at random point and cannot be brought in connection with any of my actions.

Crash 1

Problem signature:

Problem Event Name: BEX64

Application Name: dcs.exe

Application Version: 1.2.7.23803

Application Timestamp: 52f48b5c

Fault Module Name: StackHash_2d84

Fault Module Version: 0.0.0.0

Fault Module Timestamp: 00000000

Exception Offset: fffffffffffffffe

Exception Code: c0000005

Exception Data: 0000000000000008

OS Version: 6.1.7601.2.1.0.256.1

Locale ID: 1050

Additional Information 1: 2d84

Additional Information 2: 2d842393fab7d89f874ec5e71e270f14

Additional Information 3: 25a5

Additional Information 4: 25a53cf6b06c8c4baddf7793d624b769

Call Stack

> uh1_protect.dll!000000005cf71b29() Unknown

117a1ea066fa0f58() Unknown

b964cb7495e81653() Unknown

000000008afb65a0() Unknown

00000000bba32c30() Unknown

uh1_protect.dll!000000005bc9a66e() Unknown

uh1_protect.dll!000000005bca4ac7() Unknown

uh1_protect.dll!000000005bca4e64() Unknown

uh1_protect.dll!000000005bcb64c7() Unknown

kernel32.dll!000000007785652d() Unknown

ntdll.dll!0000000077a8c541() Unknown

Output window

First-chance exception at 0x000000005CF71B29 (uh1_protect.dll) in DCS.exe: 0xC0000005: Access violation reading location 0x00000000E695829C.

Unhandled exception at 0x000000005CF71B29 (uh1_protect.dll) in DCS.exe: 0xC0000005: Access violation reading location 0x00000000E695829C.

Crash 2

Problem signature:

Problem Event Name: BEX64

Application Name: dcs.exe

Application Version: 1.2.7.23803

Application Timestamp: 52f48b5c

Fault Module Name: StackHash_6762

Fault Module Version: 0.0.0.0

Fault Module Timestamp: 00000000

Exception Offset: fffffffffffffffe

Exception Code: c0000005

Exception Data: 0000000000000008

OS Version: 6.1.7601.2.1.0.256.1

Locale ID: 1050

Additional Information 1: 6762

Additional Information 2: 6762631f3544adef6ee5ae92b80d2d8c

Additional Information 3: f8f6

Additional Information 4: f8f63e6db00ac0554ba71a0bbbd5c265

Call Stack

> uh1_protect.dll!0000000052bd1b29() Unknown

117a1ea066fa0f58() Unknown

b964cb7495e81653() Unknown

000000008afb65a0() Unknown

00000000bba32c30() Unknown

uh1_protect.dll!00000000518fa66e() Unknown

uh1_protect.dll!0000000051904ac7() Unknown

uh1_protect.dll!0000000051904e64() Unknown

uh1_protect.dll!00000000519164c7() Unknown

kernel32.dll!000000007785652d() Unknown

ntdll.dll!0000000077a8c541() Unknown

Output

First-chance exception at 0x0000000052BD1B29 (uh1_protect.dll) in DCS.exe: 0xC0000005: Access violation reading location 0x00000000DC5B829C.

Unhandled exception at 0x0000000052BD1B29 (uh1_protect.dll) in DCS.exe: 0xC0000005: Access violation reading location 0x00000000DC5B829C.

please :helpsmilie:

EDIT: Meanwhile I have found this thread:

http://forums.eagle.ru/showthread.php?t=113757&highlight=uh1_protect.dll

Indeed I have many versions od c++ redistributable installed also. Next time I will try to uninstall some of them and check how it goes.

Edited February 27, 2014 by marluk

Wolf Rider · February 27, 2014

C0000005 errors are memory related

try this => http://support.microsoft.com/kb/929135

and read => http://technet.microsoft.com/en-us/library/cc738483(v=WS.10).aspx

Edited February 27, 2014 by Wolf Rider

marluk · February 27, 2014

C0000005 errors are memory related

try this => http://support.microsoft.com/kb/929135

and read => http://technet.microsoft.com/en-us/library/cc738483(v=WS.10).aspx

Thank you for reply!

I already have DEP tuned to monitor only essential Windows and services. So, I don't see how it could affect DCS execution. Moreover if this is source of exceptions, there would be much more complaints on forum community.

I will try to play with msconfig and turn off some suspicious services.

AtaliaA1 · February 27, 2014

Indeed I have custom defined page file size because I wanted to be as small as possible. I will monitor memory usage while flying a mission. Maybe we have some type of memory leak in new version that doesn't produce problems when page file is big enough.

You must reset the Page File (Windows Cache) back to "System Controlled" C++ runs calls based on having it available at its default level. With out it C++ throws out the call in an infinite loop. (laymen's terms)

marluk · February 28, 2014

You must reset the Page File (Windows Cache) back to "System Controlled" C++ runs calls based on having it available at its default level. With out it C++ throws out the call in an infinite loop. (laymen's terms)

Excuse me. No. This is not true in any terms.

Anyway, eventually I have got BSOD. After turning off some of the overclocking settings in BIOS, finally I didn't have crash while flying a mission. Maybe that was source of my issues but I must fly few more times to be sure.

ENO · February 28, 2014

If you keep having problems I'd recommend if you upgraded from 126 to 127 that you consider doing a clean install of 127...

As a very general rule from experience I find that clean installs during major releases (126 to 127 as an example) help minimize trouble.

However in this case if it was in fact just a bad overclock then so be it- but I still recommend a clean install!

marluk · February 28, 2014

If you keep having problems I'd recommend if you upgraded from 126 to 127 that you consider doing a clean install of 127...

As a very general rule from experience I find that clean installs during major releases (126 to 127 as an example) help minimize trouble.

However in this case if it was in fact just a bad overclock then so be it- but I still recommend a clean install!

Thank you for advice, but I have done that before starting the thread.

I have one more mission without crash. So far so good. Hope it will stay this way.

ENO · March 3, 2014

Yes indeed... good luck!

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Random crashes while flying mission in 1.2.7

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