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Crash with AMD Driver 20.10.1
http://sldev.free.fr/forum/viewtopic.php?f=4&t=2309		 Page 1 of 1
Author:  kathrine [ 2022-10-11 15:36:57 ]
Post subject:  Crash with AMD Driver 20.10.1
Hi Henri,

i saw a crash with the "improved OpenGL" performance branch of the AMD driver.

The stacktrace leads deep into the driver, so i guess there is not much to do there.

It seems there is some problem when the scene is full, like Frogmore (https://maps.secondlife.com/secondlife/Koro/10/143/24), the viewer exploded to like 12-14GB of RAM and froze without any interactions after walking around a little. Reducing the texture decode threads to just 2 didn't help, and draw distance was just 64m.

I guess the driver isn't stable yet. I tried with Firestorm and it did not have this crash behaviour (or i got lucky).

Kathrine

Attachments:
logs.zip [38.3 KiB]
Downloaded 29 times
Author:  Henri Beauchamp [ 2022-10-11 15:41:24 ]
Post subject:  Re: Crash with AMD Driver 20.10.1
Try reducing the maximum bound memory (MaxBoundTexMem) debug setting to 2048MB, in case the driver would eat up more memory than what the viewer expects it to do.
Author:  Henri Beauchamp [ 2022-10-11 15:55:15 ]
Post subject:  Re: Crash with AMD Driver 20.10.1
Went there, and the viewer never ate more than 8.5GB of RAM, with 512m draw distance and all graphics maxed out (excepted no shadows), but the GL bound tex memory did overshoot briefly my default limit (2560MB) while moving around, at the village center... If AMD's driver leaks memory, that could explain the crash around here...

Attachment:
TheShambles.jpg [688.8 KiB]
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Author:  Henri Beauchamp [ 2022-10-11 17:06:26 ]
Post subject:  Re: Crash with AMD Driver 20.10.1
I had a look at your crash dump, but it points at "atio6axx.dll", and no stack frame is shown for calls in the Cool VL Viewer itself (the address of the crash points into a Win64 worker thread used by the driver's DLL), and is therefore not even the direct result of a GL call by the viewer...
Attachment:
CrashDumpAnalysis.jpg [299.81 KiB]
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It means there is strictly nothing I can do, and you should report that crash to AMD so that they fix their driver...
Author:  kathrine [ 2022-10-12 12:47:50 ]
Post subject:  Re: Crash with AMD Driver 20.10.1
Ok, thank you. I'll see if i can find something myself and reported the crash to AMD.

By the way, you know that both NVidia and AMD publish the symbol files for the drivers:

https://developer.nvidia.com/nvidia-dri ... bol-server
https://gpuopen.com/learn/amd-driver-symbol-server/

So the crash is somewhere in the depths of eglGetProcAddress(), but only AMD should be able to figure out why.
Author:  Henri Beauchamp [ 2022-10-12 14:22:50 ]
Post subject:  Re: Crash with AMD Driver 20.10.1
Thanks for the links.
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