Re: [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@xxxxxxx>
> > 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@xxxxxxxxxxx> already sent a patch that
> should fix this:
> https://lore.kernel.org/lkml/20210128095346.2421-1-michel@xxxxxxxxxxx/

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

Regards,
Christian.