@alexander-deucher

CPU model: AMD Ryzen 7 2700U with Radeon Vega Mobile Gfx
Kernel: 5.10.49
Firmware:
VCE feature version: 0, firmware version: 0x00000000
UVD feature version: 0, firmware version: 0x00000000
MC feature version: 0, firmware version: 0x00000000
ME feature version: 52, firmware version: 0x000000a4
PFP feature version: 52, firmware version: 0x000000bc
CE feature version: 52, firmware version: 0x0000004f
RLC feature version: 1, firmware version: 0x00000213
RLC SRLC feature version: 1, firmware version: 0x00000001
RLC SRLG feature version: 1, firmware version: 0x00000001
RLC SRLS feature version: 1, firmware version: 0x00000001
MEC feature version: 52, firmware version: 0x000001c2
MEC2 feature version: 52, firmware version: 0x000001c2
SOS feature version: 0, firmware version: 0x00000000
ASD feature version: 0, firmware version: 0x21000055
TA RAS feature version: 0x00000000, firmware version: 0x2100002b
TA XGMI feature version: 0x00000000, firmware version: 0x2100002b
TA HDCP feature version: 0x17000011, firmware version: 0x2100002b
TA DTM feature version: 0x12000003, firmware version: 0x2100002b
SMC feature version: 0, firmware version: 0x00001e49
SDMA0 feature version: 41, firmware version: 0x00000028
VCN feature version: 0, firmware version: 0x0210c005
DMCU feature version: 0, firmware version: 0x00000000
DMCUB feature version: 0, firmware version: 0x00000000
VBIOS version: 113-RAVEN-107

Also affected

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https://bugs.launchpad.net/bugs/1928393

Title:
  linux-firmware 1.197 causes kernel to report error "amdgpu: [gfxhub0]
  retry page fault"

Status in amd:
  New
Status in linux-firmware package in Ubuntu:
  Incomplete
Status in mesa package in Ubuntu:
  Confirmed

Bug description:
  After upgrading linux-firmware from 1.190.5 to 1.197 (as part of the
  upgrade from Ubuntu 20.10 to 21.04), I started experiencing frequent
  and severe GPU instability. When this happens, I see this error in
  dmesg:

  [20061.061069] amdgpu 0000:03:00.0: amdgpu: [gfxhub0] retry page fault 
(src_id:0 ring:0 vmid:1 pasid:32769, for process Xorg pid 1141 thread Xorg:cs0 
pid 1236)
  [20061.061103] amdgpu 0000:03:00.0: amdgpu:   in page starting at address 
0x800000401000 from client 27
  [20061.061135] amdgpu 0000:03:00.0: amdgpu: 
VM_L2_PROTECTION_FAULT_STATUS:0x00101031
  [20061.061147] amdgpu 0000:03:00.0: amdgpu:      Faulty UTCL2 client ID: TCP 
(0x8)
  [20061.061157] amdgpu 0000:03:00.0: amdgpu:      MORE_FAULTS: 0x1
  [20061.061167] amdgpu 0000:03:00.0: amdgpu:      WALKER_ERROR: 0x0
  [20061.061174] amdgpu 0000:03:00.0: amdgpu:      PERMISSION_FAULTS: 0x3
  [20061.061183] amdgpu 0000:03:00.0: amdgpu:      MAPPING_ERROR: 0x0
  [20061.061189] amdgpu 0000:03:00.0: amdgpu:      RW: 0x0

  I'll attach a couple of full dmesgs that I collected.

  Many of the times when this happens, the screen and keyboard freeze
  irreversibly (I tried waiting for more than 30 minutes, but it doesn't
  help). I can still log in via ssh though. When there's no freeze, I
  can continue using the computer normally, but the laptop fans keep
  running are always running and the battery depletes fast. There's
  probably something on a permanent loop either in the kernel or in the
  GPU.

  This bug happens several times a day, rendering the machine so
  unstable as to be almost unusable. It is a severe regression and I'm
  aghast that it passed AMD's Quality Assurance.

  After downgrading back to linux-firmware 1.190.5, the machine is back
  to the previous, mostly-reliable state. Which is to say, this bug is
  gone, I'm just left with the other amdgpu suspend bug I've learned to
  live with since I bought this computer.

  Please revert the amdgpu firmware in this package as soon as possible.
  This is unbearable.

  Relevant information:
  Ubuntu version: 21.04
  Linux kernel: 5.11.0-17-generic x86_64
  CPU model: AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx
  GPU: 03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. 
[AMD/ATI] Picasso (rev c1)
  Laptop model: Lenovo Ideapad S145

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