[Bug 205089] amdgpu : drm:amdgpu_cs_ioctl : Failed to initialize parser -125

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=205089

Christine Lemmer-Webber (cwebber@dustycloud.org) changed:

           What    |Removed                     |Added
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                 CC|                            |cwebber@dustycloud.org

--- Comment #34 from Christine Lemmer-Webber (cwebber@dustycloud.org) ---
Hello,

I'm running a mostly stock upstream Linux kernel, 5.16.11 on Guix (using the
nonguix channel to get the upstream kernel).

  05:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Device 164c (rev c1)
model name      : AMD Ryzen 7 5700U with Radeon Graphics

I've been hitting the same error ("[drm:amdgpu_cs_ioctl [amdgpu]] *ERROR*
Failed to initialize parser -125!" as posted in the top of this thread) and it
can take out my whole desktop if using an accelerated compositor like Gnome
Shell.  Here's how to reproduce:

 - Open Blender 3.0
 - click the "New File -> 2D Animation" option from the splash screen
 - if it doesn't crash the first time, try it a few more times

Sometimes the desktop recovers, but often not.  If press ctrl-alt-f1 I see that
error being spit out repeatedly at the STTY.

If I'm running XFCE, it seems like similar issues happen in Blender in that it
stutters, etc, but it seems to make the screen go black for a second, then it's
able to recover.

Here's another way to trigger it: try opening a fresh scene and going to view
-> viewpoint -> camera.  Similarly, you might have to try this a few times. 
Strangely, the issue may be even worse: even on XFCE, Blender can't generally
recover in a usable way, I have to restart it.

Would love to see this fixed!  If I should open a new bug instead, let me know.

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