[Bug 94158] [amdgpu][tonga] GPU randomly gets stuck at 100% load and high clocks

[Bug 94158] [amdgpu][tonga] GPU randomly gets stuck at 100% load and high clocks

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https://bugs.freedesktop.org/show_bug.cgi?id=94158

            Bug ID: 94158
           Summary: [amdgpu][tonga] GPU randomly gets stuck at 100% load
                    and high clocks
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: csaba.halasz@gmail.com

I have noticed that my GPU fans start running at high speed after some time.
Investigating, I see:

# cat /sys/kernel/debug/dri/0/amdgpu_pm_info 

 [  mclk  ]: 1425 MHz
 [  sclk  ]: 990 MHz
 [GPU load]: 100%

Of course I am not running any graphics intensive programs and radeontop
confirms <1% load. Even shutting down Xorg altogether doesn't help. It may be
related to dpms going to "off" state, the last time it happened while the
monitors were off, or possibly just as they were switching off. I will try to
collect additional data points. Nothing suspicious shows in logs. Powerplay
seems to work fine until the issue occurs. Afterwards, I can manually lower
clocks, but load stays 100%. Side note: dpms transitions seem to reset the
manual power_dpm_force_performance_level back to auto and hence high clock.

System: r9 380, amdgpu git agd5f/drm-fixes-4.5 cc1de6e8 merged with
agd5f/drm-next-4.6-wip fa9e6991, llvm git ae316aa0, mesa git fe14110f, Xorg
1.18

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[Bug 94158] [amdgpu][tonga] GPU randomly gets stuck at 100% load and high clocks

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https://bugs.freedesktop.org/show_bug.cgi?id=94158

--- Comment #1 from Alex Deucher <alexdeucher@gmail.com> ---
Is the GPU also hung when this happens?

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[Bug 94158] [amdgpu][tonga] GPU randomly gets stuck at 100% load and high clocks

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https://bugs.freedesktop.org/show_bug.cgi?id=94158

--- Comment #2 from csaba.halasz@gmail.com ---
No, everything still works as usual and no sign of problem in the syslog (no
dreaded VM_FAULT or "scheduler is timeout").

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[Bug 94158] [amdgpu][tonga] GPU randomly gets stuck at 100% load and high clocks

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https://bugs.freedesktop.org/show_bug.cgi?id=94158

--- Comment #3 from Michael Stenzel <mastergizmo@arcor.de> ---
Hello,

I have the same problem with an rx480. Also think it gets triggered
when monitor goes into dpms "off" state. Sometimes I keep vlc running
etc so monitor does not go into sleep, than the issue never happens.

says gpu load 100% under /sys/kernel/debug/dri/0/amdgpu_pm_info
but I only have chrome open with 1 tab and hexchat nothing else.

System: mesa-13.0.1, xf86-video-amdgpu-1.2.0, xorg-1.19.0 kernel 4.8.13
(slackware64-current), GPU: xfx 480 gtr

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[Bug 94158] [amdgpu][tonga] GPU randomly gets stuck at 100% load and high clocks

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https://bugs.freedesktop.org/show_bug.cgi?id=94158

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #4 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/63.

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