[Bug 204181] NULL pointer dereference regression in amdgpu

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=204181

Sergey Kondakov (virtuousfox at gmail.com) changed:

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--- Comment #12 from Sergey Kondakov (virtuousfox at gmail.com) ---
Created attachment 283741
  --> https://bugzilla.kernel.org/attachment.cgi?id=283741&action=edit
dmesg with "drm.debug=4"

Here's actual debug dmesg. pci subsystem uses 'pci=x=y' syntax, so I wouldn't
have thought that for drm that wouldn't be valid.

Right when I wanted to upload the first dump from hang with debug that happened
in >16 hours of uptime and >30 minutes of video, it crashed before Firefox even
had a chance to render single page which happened to be same Youtube page
everything hanged on because it starts at last opened page. So, after >30
minutes it wasn't even a second to hang again. This dump is from that time.

Haven't tried launching a local video player or a 3D app. Without opening
Youtube in Firefox or video opening Firefox, doing all 2D non-accelerated
desktop stuff doesn't seem to trigger it.

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