Bug 98003 - Tonga fails to boot since drm/amdgpu:exclude 5dw digest for entry
Summary: Tonga fails to boot since drm/amdgpu:exclude 5dw digest for entry
Status: RESOLVED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: DRI git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
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Reported: 2016-10-01 14:12 UTC by Andy Furniss
Modified: 2016-10-04 22:39 UTC (History)
2 users (show)

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Description Andy Furniss 2016-10-01 14:12:14 UTC 
R9285 tonga agd5f drm-next-4.9-wip since below booting from power off fails just after drm initializing. Monitor off, no logs, can SysRq.

Works rebooting from a working kernel.

 commit 1e746dcbd1fb104b53c7b93d83e3013aa028ce8b
Author: Monk Liu <Monk.Liu@amd.com>
Date:   Tue Sep 27 13:44:44 2016 +0800

    drm/amdgpu:exclude 5dw digest for entry
Comment 1 Ernst Sjöstrand 2016-10-01 14:32:16 UTC 
Sounds like what I've seen on my Fury also. Haven't had time to track it down yet...
Comment 2 Ernst Sjöstrand 2016-10-02 13:25:33 UTC 
Nvm, I have another issue.
Comment 3 Michel Dänzer 2016-10-03 02:48:55 UTC 
Monk, any ideas?
Comment 4 Grazvydas Ignotas 2016-10-04 12:41:31 UTC 
It seems this Monk's patch series is problematic, for me "4/9 drm/amdgpu:keep bo pinned in prefered domain" is causing ring test failures on polaris 10, the one in this bug report is 1/9.

bug 98016 might also be related to this, I've also had a hang once while bisecting, but then it just went away without changing anything. I wasn't doing cold boots though, bug 98016 suggests that may be required to fully reproduce this.
Comment 5 Andy Furniss 2016-10-04 22:39:52 UTC 
I see this is gone from latest 4.9-wip which is booting OK so closing.

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