[Bug 98638] Panic on shutdown with AMDGPU and Ubuntu Plymouth

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98638

            Bug ID: 98638
           Summary: Panic on shutdown with AMDGPU and Ubuntu Plymouth
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: ernstp at gmail.com

Hi,

I think this is another exciting shutdown panic.
I happens with 4.9-rc4 and drm-next-4.10-wip from right now.

It only happens when I have the Ubuntu bootsplash enabled,
the screen stays frozen.

I managed to capture a few lines with netconsole:

[  352.263493] systemd-shutdow: 31 output lines suppressed due to ratelimiting
[  352.533484] sd 4:0:0:0: [sdd] Synchronizing SCSI cache
[  352.733464] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[  352.791916] [drm] amdgpu: finishing device.
 mac_hid psmouse sysfillrect sysimgblt fb_sys_fops e1000e drm fjes ptp wmi
pps_core[  353.908045] CPU: 1 PID: 2072 Comm: plymouthd Not tainted 4.9.0-rc4+
#63
[  353.908045] Hardware name: System manufacturer System Product Name/P8P67 PRO
REV 3.1, BIOS 1704 06/08/2011
[  353.908046]  ffffa86f010f7538
[  353.908047]  ffffffff81615882 ffffa86f010f7588 0000000000000000
ffffa86f010f7578
[  353.908049]  ffffffff812834eb 0000016f00000000 ffff97bc34cce400
ffff97bc3001df68
[  353.908051]  ffff97bc2d670e00[  353.908126]  [<ffffffff81230d10>]
__die+0xa0/0xe0
[  353.908295]  [<ffffffffc03c90e0>] ? drm_mode_getcrtc+0x140/0x140 [drm]
8b 

That's all I got.
I have 2 4K monitors connected to a Fiji Fury card.

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