linux-kernel - Re: Linux 4.11: Reported regressions as of Tuesday, 20176-03-14

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Date:   Wed, 15 Mar 2017 10:59:42 +0900
From:   Michel Dänzer <michel@...nzer.net>
To:     Thorsten Leemhuis <regressions@...mhuis.info>
Cc:     amd-gfx@...ts.freedesktop.org
Subject: Re: Linux 4.11: Reported regressions as of Tuesday, 20176-03-14


[ Moving this sub-thread to the amd-gfx mailing list ]

On 14/03/17 07:02 PM, Thorsten Leemhuis wrote:
> Hi! Find below my first regression report for Linux 4.11. It lists 9
> regressions I'm currently aware of.

[...]

> Desc: DRM BUG while initializing cape verde (2nd card)
> Repo: 2017-03-13 https://bugzilla.kernel.org/show_bug.cgi?id=194867
> Stat: n/a 
> Note: patch proposed by reporter

I don't see any patch.

Looks like the amdgpu driver has never fully initialized GDS support for
SI family GPUs, and this now triggers the DRM_MM_BUG_ON which was added
to drm_mm_init in 4.11.

AMD folks, should this be addressed by fleshing out SI GDS support, or
by completely disabling GDS initialization for SI?


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer