Re: After Vega 56/64 GPU hang I unable reboot system

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+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.

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