Hi folks, I tries debug problems with hung of GPU Vega 64 and AMD developers helps me in this: https://lists.freedesktop.org/archives/amd-gfx/2018-December/029903.html But we are stopped because on my setup some files in directory `/sys/kernel/debug/dri/0/` not openens. For example: # cat /sys/kernel/debug/dri/0/amdgpu_gca_config cat: /sys/kernel/debug/dri/0/amdgpu_gca_config: Operation not permitted But some another files are possible to open: # cat /sys/kernel/debug/dri/0/amdgpu_firmware_info VCE feature version: 0, firmware version: 0x37030400 UVD feature version: 0, firmware version: 0x01571100 MC feature version: 0, firmware version: 0x00000000 ME feature version: 40, firmware version: 0x00000099 PFP feature version: 40, firmware version: 0x000000ae CE feature version: 40, firmware version: 0x0000004d RLC feature version: 0, firmware version: 0x00000058 RLC SRLC feature version: 0, firmware version: 0x00000000 RLC SRLG feature version: 0, firmware version: 0x00000000 RLC SRLS feature version: 0, firmware version: 0x00000000 MEC feature version: 40, firmware version: 0x0000018b MEC2 feature version: 40, firmware version: 0x0000018b SOS feature version: 0, firmware version: 0x00080039 ASD feature version: 0, firmware version: 0x00172830 SMC feature version: 0, firmware version: 0x051c1100 SDMA0 feature version: 40, firmware version: 0x000001a8 SDMA1 feature version: 40, firmware version: 0x000001a8 VCN feature version: 0, firmware version: 0x00000000 DMCU feature version: 0, firmware version: 0x00000000 VBIOS version: xxx-xxx-xxx Tom (AMD developer) said that on his machine he could cat amdgpu_gca_config fine. I don't have any ideas why on my system I couldn't cat this file. fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 8), ...}) = 0 openat(AT_FDCWD, "/sys/kernel/debug/dri/0/amdgpu_ring_gfx", O_RDONLY) = -1 EPERM (Operation not permitted) Who can tell where to look problem? Thanks. -- Best Regards, Mike Gavrilov.
