[Bug 97500] Cannot unbind GPU from AMDGPU

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Bug ID 97500
Summary Cannot unbind GPU from AMDGPU
Product DRI
Version XOrg git
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter commendsarnex@gmail.com

Created attachment 126056 [details]
dmesg

Hi guys. With AMDGPU, if I try to unbind my GPU from amdgpu, I get a hard
kernel lockup. My GPU is the RX 480. I'm currently on 4.7.2, but I've tried
drm-next-4.9 also. I've tried both echo $CARD_PCI_LOCATION > unbind, and
unbinding the vtcon and then modprobe -r amdgpu. When I had my HD 7950, the
echo $CARD_PCI_LOCATION > unbind method worked every time. I'm not sure how to
get any debug info, since even an ssh session locks up. I tried using pstore,
but no logs were saved.

Please let me know if you have any ideas or need any more info.

Thanks,
Sarnex


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