[Bug 207331] New: commit "drm/amdgpu: fix gfx hang during suspend with video playback" breaks reboot/shutdown

[Bug 207331] New: commit "drm/amdgpu: fix gfx hang during suspend with video playback" breaks reboot/shutdown

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207331

            Bug ID: 207331
           Summary: commit "drm/amdgpu: fix gfx hang during suspend with
                    video playback" breaks reboot/shutdown
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.6.5
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: custos.mentis@gmail.com
        Regression: No

Created attachment 288569
  --> https://bugzilla.kernel.org/attachment.cgi?id=288569&action=edit
lspci -vvv

After updating kernel from 5.6.4 to 5.6.5 reboot and shutdown do not work any
more. My laptop Lenovo Thinkpad T495 is simply hanging forever with display
turned off, but the keyboard backlit and power led on.

I did bisection and it points to

drm/amdgpu: fix gfx hang during suspend with video playback (v2)

kernel stable 5.6.x commit: a1f57b87ddcc869b576aca73608f35cb436c3fdc
kernel stable 5.4.x commit: bdac1d76a310578b3ad081df2db97da59e241010

Indeed, after reverting this commit, both kernels reboot or shutdown properly.

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[Bug 207331] commit "drm/amdgpu: fix gfx hang during suspend with video playback" breaks reboot/shutdown

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207331

--- Comment #1 from Grzegorz Kowal (custos.mentis@gmail.com) ---
Created attachment 288571
  --> https://bugzilla.kernel.org/attachment.cgi?id=288571&action=edit
dmesg

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[Bug 207331] commit "drm/amdgpu: fix gfx hang during suspend with video playback" breaks reboot/shutdown

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207331

Grzegorz Kowal (custos.mentis@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |custos.mentis@gmail.com
         Regression|No                          |Yes

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[Bug 207331] commit "drm/amdgpu: fix gfx hang during suspend with video playback" breaks reboot/shutdown

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207331

Alex Deucher (alexdeucher@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #2 from Alex Deucher (alexdeucher@gmail.com) ---
Fixed in my latest -fixes pull:
https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-fixes-5.7&id=b2a7e9735ab2864330be9d00d7f38c961c28de5d

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[Bug 207331] commit "drm/amdgpu: fix gfx hang during suspend with video playback" breaks reboot/shutdown

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207331

--- Comment #3 from Grzegorz Kowal (custos.mentis@gmail.com) ---
Thanks! I applied the patch and the problem is gone. Both reboot and shutdown
work again.

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[Bug 207331] commit "drm/amdgpu: fix gfx hang during suspend with video playback" breaks reboot/shutdown

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207331

hagar-dunor@wanadoo.fr changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hagar-dunor@wanadoo.fr

--- Comment #4 from hagar-dunor@wanadoo.fr ---
*** Bug 207347 has been marked as a duplicate of this bug. ***

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[Bug 207331] commit "drm/amdgpu: fix gfx hang during suspend with video playback" breaks reboot/shutdown

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207331

Grzegorz Kowal (custos.mentis@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |CODE_FIX

--- Comment #5 from Grzegorz Kowal (custos.mentis@gmail.com) ---
Fixed in stable versions 5.6.6 and 5.4.34.

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