https://bugs.freedesktop.org/show_bug.cgi?id=82455
--- Comment #23 from charlie 407883775@qq.com ---
So my patch fixes the virtual address allocation failure?
I am must change the code. you patch isn't work .
That should be R600_DEBUG=nodma.
Sorry , i am writing error. Actually, i am using R600_DEBUG=nodma
What did you try running when this happened?
i am using X:0& starting X, and I am runing xterm The GPU is lockup still . ring index is 0
when i am runing startxfce4 , the GPU lookup , ring index is 3.