Re: [regression 5.7-rc1] System does not power off, just halts

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On Mon, Apr 13, 2020 at 1:47 PM Paul Menzel <pmenzel@xxxxxxxxxxxxx> wrote:
>
> Dear Prike, dear Alex, dear Linux folks,
>
>
> Am 13.04.20 um 10:44 schrieb Paul Menzel:
>
> > A regression between causes a system with the AMD board MSI B350M MORTAR
> > (MS-7A37) with an AMD Ryzen 3 2200G not to power off any more but just
> > to halt.
> >
> > The regression is introduced in 9ebe5422ad6c..b032227c6293. I am in the
> > process to bisect this, but maybe somebody already has an idea.
>
> I found the Easter egg:
>
> > commit 487eca11a321ef33bcf4ca5adb3c0c4954db1b58
> > Author: Prike Liang <Prike.Liang@xxxxxxx>
> > Date:   Tue Apr 7 20:21:26 2020 +0800
> >
> >     drm/amdgpu: fix gfx hang during suspend with video playback (v2)
> >
> >     The system will be hang up during S3 suspend because of SMU is pending
> >     for GC not respose the register CP_HQD_ACTIVE access request.This issue
> >     root cause of accessing the GC register under enter GFX CGGPG and can
> >     be fixed by disable GFX CGPG before perform suspend.
> >
> >     v2: Use disable the GFX CGPG instead of RLC safe mode guard.
> >
> >     Signed-off-by: Prike Liang <Prike.Liang@xxxxxxx>
> >     Tested-by: Mengbing Wang <Mengbing.Wang@xxxxxxx>
> >     Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
> >     Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
> >     Cc: stable@xxxxxxxxxxxxxxx
>
> It reverts cleanly on top of 5.7-rc1, and this fixes the issue.
>
> Greg, please do not apply this to the stable series. The commit message
> doesn’t even reference a issue/bug report, and doesn’t give a detailed
> problem description. What system is it?
>
> Dave, Alex, how to proceed? Revert? I created issue 1094 [1].

Already fixed:
https://patchwork.freedesktop.org/patch/361195/

Alex

>
>
> Kind regards,
>
> Paul
>
>
> [1]: https://gitlab.freedesktop.org/drm/amd/-/issues/1094
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