Re: Kernel panic every other reboot/poweroff since 3.19.3 ( commit 9a6f5130143 )

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On Tue, 31 Mar 2015, Steven Honeyman <stevenhoneyman@xxxxxxxxx> wrote:
> On 31 March 2015 at 17:50, Matt Roper <matthew.d.roper@xxxxxxxxx> wrote:
>> On Tue, Mar 31, 2015 at 08:54:19AM +0200, Daniel Vetter wrote:
>>> Adding mailing lists (and hooray for me mixing up addresses, so now
>>> there's a disclaimer at the bottom).
>>> -Daniel
>>
>> It looks like this is caused by 3.19.3 having
>>
>>         commit 77f7ef95e2cf09150e5777454fd5df69af39edcd
>>         Author: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
>>         Date:   Wed Feb 25 13:45:26 2015 +0000
>>
>>             drm: Don't assign fbs for universal cursor support to files
>>
>> without also having
>>
>>         commit 8218c3f4df3bb1c637c17552405039a6dd3c1ee1
>>         Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
>>         Date:   Fri Feb 27 12:58:13 2015 +0100
>>
>>             drm: Fixup racy refcounting in plane_force_disable
>>
>>
>> Can you try cherry-picking 8218c3f4df3bb1c637c17552405039a6dd3c1ee1 and
>> see if it solves the problem?
>>
>>
>> Matt
>
> It does! Thanks Matt.
>
> 5 successful reboots and a successful shutdown. The only change
> between the two kernels was the above patch.

Stable team, please ensure 8218c3f4df3bb1c637c17552405039a6dd3c1ee1,
already tagged cc: stable, is picked up for v3.19.4.

This is also reported as

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=95621


Thanks,
Jani.


-- 
Jani Nikula, Intel Open Source Technology Center
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