[bug] 5.11-rc5 brought page allocation failure issue [ttm][amdgpu]

[Christian König]

Am 31.01.21 um 02:03 schrieb David Rientjes:
> On Sat, 30 Jan 2021, David Rientjes wrote:
>
>> On Sun, 31 Jan 2021, Mikhail Gavrilov wrote:
>>
>>> The 5.11-rc5 (git 76c057c84d28) brought a new issue.
>>> Now the kernel log is flooded with the message "page allocation failure".
>>>
>>> Trace:
>>> msedge:cs0: page allocation failure: order:10,
>> Order-10, wow!
>>
>> ttm_pool_alloc() will start at order-10 and back off trying smaller orders
>> if necessary.  This is a regression introduced in
>>
>> commit bf9eee249ac2032521677dd74e31ede5429afbc0
>> Author: Christian König <christian.koenig at amd.com>
>> Date:   Wed Jan 13 14:02:04 2021 +0100
>>
>>      drm/ttm: stop using GFP_TRANSHUGE_LIGHT
>>
>> Namely, it removed the __GFP_NOWARN that we otherwise require.  I'll send
>> a patch in reply.
>>
> Looks like Michel Dänzer <michel at daenzer.net> already sent a patch that
> should fix this:
> https://lore.kernel.org/lkml/20210128095346.2421-1-michel@daenzer.net/

Yeah, known issue. I already pushed Michel's fix to drm-misc-fixes. 
Should land in the next -rc by the weekend.

Regards,
Christian.