Bug 106285

Summary: Multiple Xorg restarts leads to `Surface: can not attach plane_state` (raven ridge)
Product: DRI Reporter: ojab <ojab>
Component: DRM/AMDgpuAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED MOVED QA Contact:
Severity: normal    
Priority: medium CC: harry.wentland
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description ojab 2018-04-27 17:36:26 UTC 
Raven ridge APU (2400g), no external GPU, linux-4.17-rc2, libdrm-2.4.91, mesa-18.1.0-rc1, xorg-server-1.19.6, xf86-video-amdgpu-18.0.1.

So I've tried to reproduce https://bugs.freedesktop.org/show_bug.cgi?id=106276 using simple script:
```
#!/bin/sh
set -ex
while true; do
    set -x
    X&
    XPID=$!
    sleep 1
    kill ${XPID}
    sleep 1
done
```

and ended up with screen showing nothing (i. e. backlight enabled, but all image is black) in both console & X. dmesg is full of
[Fri Apr 27 16:17:33 2018] [drm:dc_add_plane_to_context [amdgpu]] *ERROR* Surface: can not attach plane_state 00000000a97ad24a! Maximum is: 4
[Fri Apr 27 16:17:33 2018] [drm:dc_add_plane_to_context [amdgpu]] *ERROR* Surface: can not attach plane_state 00000000d38d9362! Maximum is: 4
[Fri Apr 27 16:17:33 2018] [drm:dc_add_plane_to_context [amdgpu]] *ERROR* Surface: can not attach plane_state 00000000d38d9362! Maximum is: 4
[Fri Apr 27 16:17:33 2018] [drm:dc_add_plane_to_context [amdgpu]] *ERROR* Surface: can not attach plane_state 00000000d38d9362! Maximum is: 4
[Fri Apr 27 16:18:01 2018] [drm:dc_add_plane_to_context [amdgpu]] *ERROR* Surface: can not attach plane_state 00000000b7ff318d! Maximum is: 4
[Fri Apr 27 16:18:04 2018] [drm:dc_add_plane_to_context [amdgpu]] *ERROR* Surface: can not attach plane_state 00000000b7ff318d! Maximum is: 4
Comment 1 ojab 2018-04-30 14:34:23 UTC 
```
#!/bin/sh
set -ex
while true; do
    set -x
    X&
    sleep 1
    XPID=$!
    kill -9 ${XPID}
    sleep 0.1
done
```
reliably triggers this error in a minute or so.
Comment 2 Martin Peres 2019-11-19 08:36:24 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/357.

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