[Bug 111555] [amdgpu/Navi] [powerplay] Failed to send message errors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111555

            Bug ID: 111555
           Summary: [amdgpu/Navi] [powerplay] Failed to send message
                    errors
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: not set
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: shtetldik at gmail.com

I get periodic errors like this in dmesg, which coincides with intermittent
system stalls:

    [Wed Sep  4 00:43:43 2019] amdgpu: [powerplay] Failed to send message 0x12,
response 0xfffffffb param 0x6
    [Wed Sep  4 00:43:43 2019] amdgpu: [powerplay] Failed to export SMU metrics
table!
    [Wed Sep  4 00:44:53 2019] amdgpu: [powerplay] Failed to send message 0xe,
response 0xfffffffb, param 0x80
    [Wed Sep  4 00:44:53 2019] amdgpu: [powerplay] Failed to send message 0xf,
response 0xfffffffb, param 0xa90000
    [Wed Sep  4 00:45:30 2019] amdgpu: [powerplay] Failed to send message 0x12,
response 0xfffffffb, param 0x6
    [Wed Sep  4 00:45:35 2019] amdgpu: [powerplay] Failed to send message 0x12,
response 0xfffffffb param 0x6
    [Wed Sep  4 00:45:35 2019] amdgpu: [powerplay] Failed to export SMU metrics
table!

I'm running kernel 5.3-rc7
GPU: Sapphire Pulse RX 5700XT (Navi 10) with firmware from 
https://people.freedesktop.org/~agd5f/radeon_ucode/navi10/
Distro: Debian testing / KDE.

I noticed, that it starts happening often when I'm using ksysguard, which
queries lm-sensors for amdgpu temperature and fan speed.

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