[Bug 201439] New: Amdgpu: general protection fault at dce110_vblank_set in display resume

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=201439

            Bug ID: 201439
           Summary: Amdgpu: general protection fault at dce110_vblank_set
                    in display resume
           Product: Drivers
           Version: 2.5
    Kernel Version: drm-next-4.21-wip
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: fin4478 at hotmail.com
        Regression: No

Created attachment 279051
  --> https://bugzilla.kernel.org/attachment.cgi?id=279051&action=edit
general protection fault at dce110_vblank_set

My computer blanks the display after couple of minutes of inactivity. When
waking up the display with the keyboard, X freezes and the monitor does not
have the signal. I must reboot with the power button. See the dmesg output
attached. I tested with the drm-next-4.21-wip kernel compiled today and used
updated Oipaf ppa Mesa. This is a regression happened in the AMD wip kernel in
3 weeks.

My system:
xfce at ryzenpc:~$ inxi -bM
System:
  Host: ryzenpc Kernel: 4.19.0-rc6+ x86_64 bits: 64 Desktop: Xfce 4.12.4 
  Distro: Debian GNU/Linux buster/sid 
Machine:
  Type: Desktop Mobo: ASUSTeK model: PRIME B350M-K v: Rev X.0x 
  serial: <root required> UEFI: American Megatrends v: 4023 date: 08/20/2018 
CPU:
  6-Core: AMD Ryzen 5 1600 type: MT MCP speed: 2885 MHz 
Graphics:
  Device-1: AMD Baffin [Polaris11] driver: amdgpu v: kernel 
  Display: x11 server: X.Org 1.20.1 driver: amdgpu,ati 
  unloaded: fbdev,modesetting,vesa resolution: 1920x1080~60Hz 
  OpenGL: renderer: Radeon RX 560 Series (POLARIS11 DRM 3.27.0 4.19.0-rc6+ 
  LLVM 7.0.0) 
  v: 4.5 Mesa 18.3.0-devel

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