linux-kernel - Re: [BUG] VAAPI encoder cause kernel panic if encoded video in 4K

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Message-ID: <fff4926a-8f20-8d31-611b-473e84d89af0@amd.com>
Date:   Wed, 21 Apr 2021 08:42:31 +0200
From:   Christian König <christian.koenig@....com>
To:     Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>,
        Christian König <ckoenig.leichtzumerken@...il.com>
Cc:     Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>
Subject: Re: [BUG] VAAPI encoder cause kernel panic if encoded video in 4K



Am 20.04.21 um 20:03 schrieb Mikhail Gavrilov:
> On Wed, 14 Apr 2021 at 11:48, Christian König
> <ckoenig.leichtzumerken@...il.com> wrote:
>>>> commit f63da9ae7584280582cbc834b20cc18bfb203b14
>>>> Author: Philip Yang <Philip.Yang@....com>
>>>> Date:   Thu Apr 1 00:22:23 2021 -0400
>>>>
>>>>        drm/amdgpu: reserve fence slot to update page table
>>>>
>> That is expected behavior, the application is just buggy and causing a
>> page fault on the GPU.
>>
>> The kernel should just not crash with a backtrace.
>>
> Any chance to see this commit to be backported to 5.12?
> I plan to submit a bug report to OBS devs and don't want my system to
> hang again and again when I would test their patches.

I can try, but I'm not sure if we even have the full page fault handling 
for Navi in 5.12.

Regards,
Christian.