Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <CABXGCsNVp=R5zC9B3PXWJ5nddtt3gkRzDsAsRKvhXq7exGjSAg@mail.gmail.com>
 <f3bc34e1-0eaf-84ef-486e-b7759e60b792@amd.com> <CABXGCsOD+tDdFcM37NP_1nS9eLym7qC=jUQy3iqYkc1m2iQgxw@mail.gmail.com>
 <0d5f66d8-9852-b6a9-0e27-9eb9e736d698@amd.com> <CABXGCsPi68Lyvg+6UjTK2aJm6PVBs83YJuP6x68mcrzAQgpuZg@mail.gmail.com>
 <eef04fc4-741d-606c-c2c6-f054e4e3fffd@amd.com> <CABXGCsNNwEjo_dvWJL7GLULBPy+RmwsC9ObpowR_M1nQ3fKt3g@mail.gmail.com>
 <4d0cbb79-4955-a3ed-4aa2-7f6cdaa00481@gmail.com> <CABXGCsP19VFRgTx5yGn68iCK3NxPxi_b9MTq=AmHtFPv9xR5sA@mail.gmail.com>
 <675a2d33-b286-d1d0-e4e7-05d6516026c0@gmail.com> <CABXGCsOqrB5zPFCeLw-VQjePikwDq4EKFQGc9hbOb5f7tGLDgg@mail.gmail.com>
 <8e54ec49-09da-f345-35cd-430712f5a6ad@gmail.com>
In-Reply-To: <8e54ec49-09da-f345-35cd-430712f5a6ad@gmail.com>
From:   Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Date:   Tue, 18 Oct 2022 03:43:51 +0500
Message-ID: <CABXGCsPXcG4BUDr8AtmtWHZh7kTw6pFsSedhxiEcuej5S0oJ7Q@mail.gmail.com>
Subject: Re: [Bug][5.18-rc0] Between commits ed4643521e6a and 34af78c4e616,
 appears warning "WARNING: CPU: 31 PID: 51848 at drivers/dma-buf/dma-fence-array.c:191
 dma_fence_array_create+0x101/0x120" and some games stopped working.
To:     =?UTF-8?Q?Christian_K=C3=B6nig?= <ckoenig.leichtzumerken@gmail.com>,
        "Deucher, Alexander" <alexander.deucher@amd.com>
Cc:     Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
        amd-gfx list <amd-gfx@lists.freedesktop.org>,
        dri-devel <dri-devel@lists.freedesktop.org>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

On Wed, May 11, 2022 at 5:01 PM Christian K=C3=B6nig
<ckoenig.leichtzumerken@gmail.com> wrote:
>
>
> We have implemented a workaround, but still don't know the exact root cau=
se.
>
> If anybody wants to look into this it would be rather helpful to be able
> to reproduce the issue.
>
> Regards,
> Christian.

I see that issue was returned after this commit
dd80d9c8eecac8c516da5b240d01a35660ba6cb6 is the first bad commit
commit dd80d9c8eecac8c516da5b240d01a35660ba6cb6
Author: Christian K=C3=B6nig <christian.koenig@amd.com>
Date:   Thu Jul 14 10:23:38 2022 +0200

    drm/amdgpu: revert "partial revert "remove ctx->lock" v2"

    This reverts commit 94f4c4965e5513ba624488f4b601d6b385635aec.

    We found that the bo_list is missing a protection for its list entries.
    Since that is fixed now this workaround can be removed again.

    Signed-off-by: Christian K=C3=B6nig <christian.koenig@amd.com>
    Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c  | 21 ++++++---------------
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c |  2 --
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h |  1 -
 3 files changed, 6 insertions(+), 18 deletions(-)

The games Forza Horizon 4 and Cyberpunk 2077 again hangs at start.


--=20
Best Regards,
Mike Gavrilov.