[PATCH] drm/amd/amdgpu: set gtt size according to system memory size only

Michel Dänzer michel at daenzer.net
Mon Dec 11 11:29:08 UTC 2017

On 2017-12-11 03:49 AM, He, Roger wrote:
>> From: Michel Dänzer [mailto:michel at daenzer.net] On 2017-12-07 07:07
>> PM, Christian König wrote:
>>> I think I know what is going on here. The max-texture-size keeps
>>>  increasing the texture size as long as it doesn't fails to
>>> allocate one.
>>> So the "Out of kernel memory" message is actually the desired
>>> effect (but we should probably remove the message).
>>> The price question is what happens after that? Those code paths
>>> are probably not very well tested.
>> I'm attaching all the related dmesg output I've captured.
>> Basically, best case is the OOM reaper killing piglit, worst case
>> is no response to SSH => hard reboot.

BTW, even when the machine stays responsive via SSH, the GPU hangs.

>> Until this becomes more robust, this change should probably be
>> reverted.
> I have not got any valuable info from error log. Please revert it now
> as quick solution, later let me check the reason.

I'm busy with other stuff, can you revert it?

Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

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