FSCAI.dll fun and games

[mjl1966]

I am sure this is an extreme corner case and probably not much you can do about it, but... it's kind of interesting.

So, for some reason, FSCAI.dll started crashing Flytampa KBOS. (Wut?)  Yeah, I know.  But, seriously, any time I select KBOS, I get this in event viewer:

Faulting application name: fsx.exe, version: 10.0.62615.0, time stamp: 0x559f9a9a
Faulting module name: FSCAI.dll_unloaded, version: 0.8.0.22, time stamp: 0x59ef9bf6

Then I tried something crazy: I renamed FSCAI.dll. 

Then started getting this:

Faulting application name: fsx.exe, version: 10.0.62615.0, time stamp: 0x559f9a9a
Faulting module name: FSCaptain.dll_unloaded, version: 1.8.3.1, time stamp: 0x61491e29

But ONLY when I try to load KBOS in free flight.  If I beam over from a different airport, that seems to work better.

Yeah, did the reg thing.  This isn't that.

Logs don't tell us much.

NORMAL:
FSCaptain.DLL:: 12:59:08 Initial CallDispatch Return = 0
FSCaptain.DLL:: 12:59:12 OnRecvOpen Executing...
FSCaptain.DLL:: 12:59:12 Menus Added
FSCaptain.DLL:: 12:59:12 Client Data Receiver is Initialized
FSCaptain.DLL:: 12:59:12 Client Data Transmitter Established
FSCaptain.DLL:: 12:59:12 CallDispatch initial return is 0

KBOS:

FSCaptain.DLL:: 13:08:08 Initial CallDispatch Return = 0
FSCaptain.DLL:: 13:08:13 OnRecvOpen Executing...
FSCaptain.DLL:: 13:08:13 Menus Added
FSCaptain.DLL:: 13:08:13 Client Data Receiver is Initialized
FSCaptain.DLL:: 13:08:13 Client Data Transmitter Established
FSCaptain.DLL:: 13:08:13 CallDispatch initial return is 0
FSCaptain.DLL:: 13:09:40 SimConnect disconnected

Weird, huh?

[Travis]

Weird, yes.

The faulting module names you list "_unloaded" are the routines our DLLs call when they are unloading at simulator shutdown.  So it feels like the simulator was shutting down, and we did something naughty, and the simulator threw a fault because of that.

I've no idea why this would happen, except for a near-OOM condition.  I can launch at FT KBOS in P3D4 with no problem, so I can't possibly check.

Best,

[mjl1966]

Feb 4, 2023 13:54:22 GMT -5 Travis said:

Weird, yes.

The faulting module names you list "_unloaded" are the routines our DLLs call when they are unloading at simulator shutdown.  So it feels like the simulator was shutting down, and we did something naughty, and the simulator threw a fault because of that.

I've no idea why this would happen, except for a near-OOM condition.  I can launch at FT KBOS in P3D4 with no problem, so I can't possibly check.

Best,

Interesting: "_unloaded" are the routines our DLLs call when they are unloading at simulator shutdown.

So probably you just following the crowd there.  BOS is at ground zero here, but that bit of insight points at something else... which actually makes sense.  I've never seen FSC crash FSX.  OK, then, looking under more rocks.