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

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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].


Kind regards,

Paul


[1]: https://gitlab.freedesktop.org/drm/amd/-/issues/1094
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