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StackHash CTD in FS9: check for incomplete photo sceneries!

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Last weekend I tried doing a flight between KMIA (MS default) and SACO in FS9 (default, reworked AFCAD, default terminal buildings added and photoreal ground textures I generated in SBuilder 2). Keeping with Murphy's law, I was getting a CTD just at approach. After checking with AppCrashView, I saw it was a StackHash error, for which the CTD guide did not give me the best hope. I was fearing a reformat...

 

After trying again (I had just saved 30 NM before the airport), I ran Process Monitor along with FS9, until it crashed. After weeding out all the DLL crashes (every single DLL in FS9 reported buffer error), I found the culprit was a missing winter texture (it's winter in Southern Hemisphere). Turns out that I only generated summer and night textures (and autogen), and forgot to generate all other season bitmaps.

 

After generating all season textures, I could land with no issue. Hope this helps when you see this type of CTD.

Best regards,
Luis Hernández 20px-Flag_of_Colombia.svg.png20px-Flag_of_Argentina.svg.png

Main rig: self built, AMD Ryzen 7 5700X3D (with SMT off and CO -50 mV), 2x16 GB DDR4-3200 RAM, Nvidia RTX 5060Ti 16GB, 256 GB M.2 SSD (OS+apps) + 2x1 TB SATA III SSD (sims) + 1 TB 7200 rpm HDD (storage), ID-Cooling SE-224-XTS air cooler, Viewsonic VX2458-MHD 1920x1080@120-144 Hz (G-sync compatible), Windows 11. Running P3D v5.4 (with v4.5 scenery objects as an additional library, just in case), FSX-SE, MSFS2020, MSFS2024 and even FS9! Lossless Scaling for all my sims. What a godsend...

Mobile rig: ASUS Zenbook UM425QA (AMD Ryzen 7 5800H APU @3.2 GHz and boost disabled, 1 TB M.2 SSD, 16 GB RAM, Windows 11 Pro). Running FS9 there .

VKB Gladiator NXT Premium Left + GNX THQ as primary controllers. Xbox Series X|S wireless controller as standby/mobile.

 

 


I ran Process Monitor along with FS9, until it crashed. After weeding out all the DLL crashes (every single DLL in FS9 reported buffer error), I found the culprit was a missing winter texture (it's winter in Southern Hemisphere). Turns out that I only generated summer and night textures (and autogen), and forgot to generate all other season bitmaps.

 

It's good you found the causes of your StackHash(es).  The Buffer Overflow errors are quite common and mean nothing.  Here's an explanation from one Source - http://www.howtogeek.com/school/sysinternals-pro/lesson4/all/ (scroll down to the Buffer Error section).

 

I personally think you will get more StackHashes (it's not an error).  I believe it is bad programming on the part of some developer that causes many of these issues.  StackHashes occur and then go away for a while then they return.  Another member, Ray Proudfoot, and I found a missing object in MyTrafficX caused a StackHash.  Removed the object and the crashes stopped (they alternated between StackHash and the ntdll.dll error.  I hope you did find the error because of missing winter textures.  Were they loading or trying to load about when you got the StackHash?  For me, the culprit has been the AI program and it was caused by the AI program looking for a flight plan for an AI aircraft and couldn't find it.  I knew it was MyTrafficX as Process Monitor was processing AI aircraft when the freeze or the crash occurred.

 

Best regards,

Jim

Jim Young | AVSIM Online! - Simming's Premier Resource!

Member, AVSIM Board of Directors - Serving AVSIM since 2001

Submit News to AVSIM
Important other links: Basic FSX Configuration Guide | AVSIM CTD Guide | AVSIM Prepar3D Guide | Help with AVSIM Site | Signature Rules | Screen Shot Rule | AVSIM Terms of Service (ToS)

I7 8086K  5.0GHz | GTX 1080 TI OC Edition | Dell 34" and 24" Monitors | ASUS Maximus X Hero MB Z370 | Samsung M.2 NVMe 500GB and 1TB | Samsung SSD 500GB x2 | Toshiba HDD 1TB | WDC HDD 1TB | Corsair H115i Pro | 16GB DDR4 3600C17 | Windows 10 

 

  • Author

 

 


Were they loading or trying to load about when you got the StackHash? 

Actually, I was the developer. The CTD was because FS9 was looking for the airport ground winter textures as soon as the airport was in range.The 3-4 crashes I had were all in the same place.

Best regards,
Luis Hernández 20px-Flag_of_Colombia.svg.png20px-Flag_of_Argentina.svg.png

Main rig: self built, AMD Ryzen 7 5700X3D (with SMT off and CO -50 mV), 2x16 GB DDR4-3200 RAM, Nvidia RTX 5060Ti 16GB, 256 GB M.2 SSD (OS+apps) + 2x1 TB SATA III SSD (sims) + 1 TB 7200 rpm HDD (storage), ID-Cooling SE-224-XTS air cooler, Viewsonic VX2458-MHD 1920x1080@120-144 Hz (G-sync compatible), Windows 11. Running P3D v5.4 (with v4.5 scenery objects as an additional library, just in case), FSX-SE, MSFS2020, MSFS2024 and even FS9! Lossless Scaling for all my sims. What a godsend...

Mobile rig: ASUS Zenbook UM425QA (AMD Ryzen 7 5800H APU @3.2 GHz and boost disabled, 1 TB M.2 SSD, 16 GB RAM, Windows 11 Pro). Running FS9 there .

VKB Gladiator NXT Premium Left + GNX THQ as primary controllers. Xbox Series X|S wireless controller as standby/mobile.

Then that makes sense.  My StackHashes were at the exact same spot too.  Thanks for reporting your solution.

 

Best regards,

Jim

Jim Young | AVSIM Online! - Simming's Premier Resource!

Member, AVSIM Board of Directors - Serving AVSIM since 2001

Submit News to AVSIM
Important other links: Basic FSX Configuration Guide | AVSIM CTD Guide | AVSIM Prepar3D Guide | Help with AVSIM Site | Signature Rules | Screen Shot Rule | AVSIM Terms of Service (ToS)

I7 8086K  5.0GHz | GTX 1080 TI OC Edition | Dell 34" and 24" Monitors | ASUS Maximus X Hero MB Z370 | Samsung M.2 NVMe 500GB and 1TB | Samsung SSD 500GB x2 | Toshiba HDD 1TB | WDC HDD 1TB | Corsair H115i Pro | 16GB DDR4 3600C17 | Windows 10 

 

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