ajz3d
Nevertheless, I can promise you to do the testing once the appropriate driver version becomes available in the official Debian Testing repository.

thanks!
Sorry this issue has been such a pain! :/

I know, but fortunately it's in good hands.

@brians, I report back as promised.
Yesterday 525.85.12 drivers were uploaded to Debian Testing repository, so I loaded up the test scene and it no longer crashes on Crag.

ajz3d
Yesterday 525.85.12 drivers were uploaded to Debian Testing repository, so I loaded up the test scene and it no longer crashes on Crag.

Yay!
thanks for reporting back!

FWIW I had this same issue, (Karma / optix renders failing with "cuda error illegal adress") on Windows with a GTX390, Houdini 19.5.534. Upgrading to Houdini 19.5.569 and Nvidia Studio Driver 631.61 made the issue go away.

We are experiencing XPU crashes on the farm with both older and latest drivers

Houdini_20.0.653

NVIDIA driver version 537.58 and
NVIDIA driver version 551.61

GPU 0: NVIDIA GeForce RTX 3090 @ 1695MHz (compute 8.6) with 24575MB (23780MB available) (NVLink:0)
GPU 1: NVIDIA GeForce RTX 3090 @ 1695MHz (compute 8.6) with 24575MB (23809MB available) (NVLink:0)

KarmaXPU: device Type:Optix ID:1 has registered a critical error , so will now stop functioning. Future error messages will be suppressed
KarmaXPU: device Type:Optix ID:0 has registered a critical error , so will now stop functioning. Future error messages will be

pete4d
KarmaXPU: device Type:Optix ID:1 has registered a critical error , so will now stop functioning. Future error messages will be suppressed
KarmaXPU: device Type:Optix ID:0 has registered a critical error , so will now stop functioning. Future error messages will be

Can you please repost this error? using inline code formatting? (or even a screenshot will do)
The forum strips out anything in square brackets, meaning the actual error has been removed from the text :/

thanks