[Bug 103736] Sudden system freezes, dmesg errors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103736

            Bug ID: 103736
           Summary: Sudden system freezes, dmesg errors
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: shiverly at mt2015.com

Created attachment 135450
  --> https://bugs.freedesktop.org/attachment.cgi?id=135450&action=edit
dmesg errors

I installed Ubuntu Mate 17.10 and M-bab drivers
(https://github.com/M-Bab/linux-kernel-amdgpu-binaries, without them one
monitor is always black but powered on). 

Almost every day system freezes suddenly after random amount of time, which can
be from 5 minutes to 3+ hours. Only power button helps, no logs are saved but
dmesg has errors. 

I think this is either AMDGPU bug or something ryzen related (most likely not,
because they manifest as sudden reboots, never as system freezes. And last bios
update stopped them 2 months ago).

Graphics:  Card: Advanced Micro Devices [AMD/ATI] Tonga PRO [Radeon R9 285/380]
           Display Server: x11 (X.Org 1.19.5 )
           drivers: ati,amdgpu (unloaded: modesetting,fbdev,vesa,radeon)
           Resolution: 1920x1080 at 60.00hz, 1920x1080 at 60.00hz
           OpenGL: renderer: AMD Radeon R9 200 Series (TONGA / DRM 3.23.0 /
4.13.11+, LLVM 5.0.1)
           version: 4.5 Mesa 17.4.0-devel

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