[Bug 111759] [navi10] computer hang ring sdma1 timeout

[Bug 111759] [navi10] computer hang ring sdma1 timeout

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https://bugs.freedesktop.org/show_bug.cgi?id=111759

            Bug ID: 111759
           Summary: [navi10] computer hang ring sdma1 timeout
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: not set
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: kingoipo@gmail.com

Using the soon-to-be linux 5.4.0-rc1 (574cc4539762561d96b456dbc0544d8898bd4c6e)
with oibaf's ppa for DRI, I get the following messages in my kernel.log:

Sep 20 18:12:19 oipo-X570-AORUS-ELITE kernel: [23162.876229]
[drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma1 timeout, signaled
seq=140067, emitted seq=140070
Sep 20 18:12:19 oipo-X570-AORUS-ELITE kernel: [23162.876310]
[drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process GPU
Process pid 16418 thread firefox:cs0 pid 16498
Sep 20 18:12:19 oipo-X570-AORUS-ELITE kernel: [23162.876312] [drm] GPU recovery
disabled.


Music stops playing, desktop becomes completely unresponsive except for mouse.
Mouse can be moved normally.

Hardware: Radeon RX 5700

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[Bug 111759] [navi10] computer hang ring sdma1 timeout

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https://bugs.freedesktop.org/show_bug.cgi?id=111759

--- Comment #1 from Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> ---
See also https://bugs.freedesktop.org/show_bug.cgi?id=111481 were similar
issues were reported.

For now, it seems that the only reliable workaround is to use the Mesa
environment variable "AMD_DEBUG=nodma".

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[Bug 111759] [navi10] computer hang ring sdma1 timeout

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https://bugs.freedesktop.org/show_bug.cgi?id=111759

--- Comment #2 from Michael de Lang <kingoipo@gmail.com> ---
Much appreciated, will test that and if it seems to help, then this can be
closed as duplicate.

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[Bug 111759] [navi10] computer hang ring sdma1 timeout

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https://bugs.freedesktop.org/show_bug.cgi?id=111759

Michael de Lang <kingoipo@gmail.com> changed:

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

--- Comment #3 from Michael de Lang <kingoipo@gmail.com> ---
Confirmed workaround from #111481 to fix freezes.

*** This bug has been marked as a duplicate of bug 111481 ***

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