linux-kernel - Re: [regression] Re: Linux 4.3-rc1

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Date:	Wed, 23 Sep 2015 23:37:00 +0200
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	Shuah Khan <shuahkh@....samsung.com>
Cc:	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	Jairo Miramontes <jairo.daniel.miramontes.caton@...el.com>
Subject: Re: [regression] Re: Linux 4.3-rc1

On Wed, Sep 23, 2015 at 10:48 PM, Sedat Dilek <sedat.dilek@...il.com> wrote:
> On Wed, Sep 23, 2015 at 3:31 PM, Shuah Khan <shuahkh@....samsung.com> wrote:
>> On 09/23/2015 02:56 AM, Daniel Vetter wrote:
>>> Another regression for Jairo to track.
>>> -Daniel
>>
>> Saw the same problem in 4.3-rc2 as well. Not a one time
>> deal and easily reproducible.
>>
>
> Looks like the patch "drm/i915: Add primary plane to mask if it's
> visible" is the correct fix.
> Did not try it.
>
> - sed@ -
>
> [1] http://cgit.freedesktop.org/drm-intel/commit/?h=drm-intel-fixes&id=721a09f7393de6c28a07516dccd654c6e995944a
>

Pulled in d-i-f [1] on top of Linux v4.3-rc2 and the issue is gone.

- sed@ -

[1] http://cgit.freedesktop.org/drm-intel/log/?h=drm-intel-fixes

>> thanks,
>> -- Shuah
>>>
>>> On Tue, Sep 15, 2015 at 03:26:13AM +0200, Sedat Dilek wrote:
>>>> Hi,
>>>>
>>>> I have reported the same issue in [0]...
>>>>
>>>> You write in [1]...
>>>>
>>>> ------------[ cut here ]------------
>>>> WARNING: CPU: 3 PID: 24 at drivers/gpu/drm/i915/intel_display.c:1377
>>>> assert_planes_disabled+0xe4/0x150 [i915]()
>>>> plane A assertion failure, should be disabled but not
>>>> ...
>>>>
>>>> I can confirm this was not seen in v4.2 here on Ubuntu/precise AMD64.
>>>>
>>>> Regards,
>>>> - Sedat -
>>>>
>>>> [0] http://marc.info/?t=144176663400002&r=1&w=2
>>>> [1] http://marc.info/?l=linux-kernel&m=144227950327112&w=2
>>>
>>
>>
>> --
>> Shuah Khan
>> Sr. Linux Kernel Developer
>> Open Source Innovation Group
>> Samsung Research America (Silicon Valley)
>> shuahkh@....samsung.com | (970) 217-8978
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