On Fri, May 27, 2022 at 07:56:48AM +0000, Chen, Guchun wrote: > A patch was available already to protect against such scenario. > > https://patchwork.freedesktop.org/patch/486289/ , "drm/amdgpu/discovery: validate VCN and SDMA instances" > What? That's an unrelated patch and it has already been applied so I took it into consideration when doing my analysis. regards, dan carpenter