On 2018-01-03 12:02 PM, LuÃs Mendes wrote: > > What I believe it seems to be the case is that the GPU lock up only > happens when doing a page flip, since the kernel locks with: > [ 243.693200] kworker/u4:3 D 0 89 2 0x00000000 > [ 243.693232] Workqueue: events_unbound commit_work [drm_kms_helper] > [ 243.693251] [<80b8c6d4>] (__schedule) from [<80b8cdd0>] (schedule+0x4c/0xac) > [ 243.693259] [<80b8cdd0>] (schedule) from [<80b91024>] > (schedule_timeout+0x228/0x444) > [ 243.693270] [<80b91024>] (schedule_timeout) from [<80886738>] > (dma_fence_default_wait+0x2b4/0x2d8) > [ 243.693276] [<80886738>] (dma_fence_default_wait) from [<80885d60>] > (dma_fence_wait_timeout+0x40/0x150) > [ 243.693284] [<80885d60>] (dma_fence_wait_timeout) from [<80887b1c>] > (reservation_object_wait_timeout_rcu+0xfc/0x34c) > [ 243.693509] [<80887b1c>] (reservation_object_wait_timeout_rcu) from > [<7f331988>] (amdgpu_dm_do_flip+0xec/0x36c [amdgpu]) > [ 243.693789] [<7f331988>] (amdgpu_dm_do_flip [amdgpu]) from > [<7f33309c>] (amdgpu_dm_atomic_commit_tail+0xbfc/0xe58 [amdgpu]) > ... Does the problem also occur if you disable DC with amdgpu.dc=0 on the kernel command line? Does it also happen with a kernel built from the amd-staging-drm-next branch instead of drm-next-4.16? -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
