+Tom Andrey On 12/19/2018 01:35 PM, Mikhail Gavrilov wrote: > On Tue, 18 Dec 2018 at 00:08, Grodzovsky, Andrey > <Andrey.Grodzovsky@xxxxxxx> wrote: >> Please install UMR and dump gfx ring content and waves after the hang is >> happening. >> >> UMR at - https://cgit.freedesktop.org/amd/umr/ >> Waves dump >> sudo umr -O verbose,halt_waves -wa >> GFX ring dump >> sudo umr -O verbose,follow -R gfx[.] >> >> Andrey >> > Thanks for respond. > > What options should I specify in kernel command line? > > On my setup `umr` terminated with message `Could not open ring debugfs > file` and crashes. But I am sure that debugfs enabled. > > $ sudo umr -O verbose,halt_waves -wa > Cannot seek to MMIO address: Bad file descriptor > [ERROR]: Could not open ring debugfs fileSegmentation fault > > > # ls /sys/kernel/debug/dri/0/ > amdgpu_dm_dtn_log amdgpu_ring_comp_1.1.0 amdgpu_vram_mm > amdgpu_evict_gtt amdgpu_ring_comp_1.1.1 amdgpu_wave > amdgpu_evict_vram amdgpu_ring_comp_1.2.0 clients > amdgpu_fence_info amdgpu_ring_comp_1.2.1 crtc-0 > amdgpu_firmware_info amdgpu_ring_comp_1.3.0 crtc-1 > amdgpu_gca_config amdgpu_ring_comp_1.3.1 crtc-2 > amdgpu_gds_mm amdgpu_ring_gfx crtc-3 > amdgpu_gem_info amdgpu_ring_kiq_2.1.0 crtc-4 > amdgpu_gpr amdgpu_ring_sdma0 crtc-5 > amdgpu_gpu_recover amdgpu_ring_sdma1 DP-1 > amdgpu_gtt_mm 'amdgpu_ring_uvd<0>' DP-2 > amdgpu_gws_mm 'amdgpu_ring_uvd_enc0<0>' DP-3 > amdgpu_iomem 'amdgpu_ring_uvd_enc1<0>' framebuffer > amdgpu_oa_mm amdgpu_ring_vce0 gem_names > amdgpu_pm_info amdgpu_ring_vce1 HDMI-A-1 > amdgpu_regs amdgpu_ring_vce2 HDMI-A-2 > amdgpu_regs_didt amdgpu_sa_info HDMI-A-3 > amdgpu_regs_pcie amdgpu_sensors internal_clients > amdgpu_regs_smc amdgpu_test_ib name > amdgpu_ring_comp_1.0.0 amdgpu_vbios state > amdgpu_ring_comp_1.0.1 amdgpu_vram ttm_page_pool > > > > > -- > Best Regards, > Mike Gavrilov.