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I swear I started looking for the serious nouveau bug before the phoronix article, but it wasn't reproducing for me here. I eventually went with detailed code inspection and think I got it.
@airlied The Nouveau kernel driver is pretty old and uses legacy patterns. It isn't suprrising that there are these bad bugs. Has any company/person taken up the effort to write a new kernel driver? Especially for NVK.
@adilarif no a new driver would be a massive undertaking, the current kernel driver has a few area being worked on to bring it up to a newer support level
@airlied That makes sense, especially since Nvidia isn't getting involved with a shared driver unlike AMD. Thank you for the insight!
@airlied and here I'm hitting it after 2 minutes if I try 
I suspect it has to do with how NVK and our OpenGL driver behaves differently in regards to waiting on completed work. But yeah.. I was _thinking_ about doing something similar to your patch, but didn't think hard enough about the code