https://bugs.freedesktop.org/show_bug.cgi?id=107065 --- Comment #10 from Andrey Grodzovsky --- Created attachment 140418 --> https://bugs.freedesktop.org/attachment.cgi?id=140418&action=edit drm/amdgpu: Verify root PD is mapped into kernel address space. dwagner, please try this patch. Fixes the issue for me and I observed no suspend/resume issues. Christian, please take a look at the patch, problem was that in amdgpu_vm_update_directories the parent BO didn't have a kernel mapping and so later inside amdgpu_vm_cpu_set_ptes pe += (unsigned long)amdgpu_bo_kptr(bo); would equal to 0000000000002000 since parent amdgpu_bo_kptr woudld return NULL. The parent was the root PD. This was still working in 67b8d5c Linus Torvalds 7 weeks ago Linux 4.17-rc5 (tag: v4.17-rc5) but I wasn't able to exactly pinpoint which change broke it. I am not sure my fix is the right one so please advise. -- You are receiving this mail because: You are the assignee for the bug.