[Bug 104756] [bisected] [kabini] [regression] [drm:amdgpufb_create] *ERROR* failed to create fbcon object -12 - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 104756] [bisected] [kabini] [regression] [drm:amdgpufb_create] *ERROR* failed to create fbcon object -12
Date: Tue, 23 Jan 2018 22:23:52 +0000	[thread overview]
Message-ID: <bug-104756-502@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=104756

            Bug ID: 104756
           Summary: [bisected] [kabini] [regression] [drm:amdgpufb_create]
                    *ERROR* failed to create fbcon object -12
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: mike@fireburn.co.uk

Created attachment 136922
  --> https://bugs.freedesktop.org/attachment.cgi?id=136922&action=edit
Dmesg with errors

I've been seeing messages about being unable to allocate an fbcon object

I've bisected it back to:

4983e48c8539282be15f660bdd2c4260467b1190 is the first bad commit
commit 4983e48c8539282be15f660bdd2c4260467b1190
Author: Lucas Stach <l.stach@pengutronix.de>
Date:   Wed Dec 6 17:49:40 2017 +0100

    drm/sched: move fence slab handling to module init/exit

    This is the only part of the scheduler which must not be called from
    different drivers. Move it to module init/exit so it is done a single
    time when loading the scheduler.

    Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
    Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
    Acked-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

I see the issue with both DC and the old display setting code

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