[Bug 100399] Kernel invalid opcode on unbinding amdgpu

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100399

--- Comment #10 from jimijames.bove at gmail.com ---
OK, that's weird. Running sudo lsof /dev/dri/* doesn't get me any info about
the AMD card at all. I ran it at boot, when it's bound to vfio-pci (I set it up
to be that way at boot), then I ran it after unbinding it to that and binding
it to amdgpu, and then I ran it after attempting (and failing due to this bug)
to unbind it from amdgpu. All 3 times, I got these lines, which are referring
to my NVidia GT 740 (card0), and absolutely no lines that have anything to do
with Xorg or any other video card:

COMMAND    PID USER   FD   TYPE  DEVICE SIZE/OFF  NODE NAME
Xorg       597 root  mem    CHR   226,0          14346 /dev/dri/card0
Xorg       597 root   14u   CHR   226,0      0t0 14346 /dev/dri/card0
Xorg       597 root   16u   CHR   226,0      0t0 14346 /dev/dri/card0
Xorg       597 root   17u   CHR   226,0      0t0 14346 /dev/dri/card0

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