On Mon, Jun 22, 2020 at 11:30:04AM -0400, Alex Xu (Hello71) wrote: > Yes, it works with SME off with dbed452a078 ("dma-pool: decouple > DMA_REMAP from DMA_COHERENT_POOL") applied. Okay, I can reproduce the problem on my Ryzen System, and the boot log shows various warnings/bugs from the amdgpu driver. I think this should be looked at by the AMDGPU folks first, as I didn't really got far looking into the GPU drivers code. Regards, Joerg