linux-kernel - Re: i915 suspend crash: BUG: unable to handle kernel NULL pointer deferrence

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Date:	Fri, 12 Aug 2011 16:52:26 -0700
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	Keith Packard <keithp@...thp.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	airlied@...ux.ie
Subject: Re: i915 suspend crash: BUG: unable to handle kernel NULL pointer
 deferrence

On 08/12/2011 10:43 AM, Keith Packard wrote:
> On Fri, 12 Aug 2011 10:37:20 -0700, "Justin P. Mattock"<justinmattock@...il.com>  wrote:
>
>>    I have: Enable modesetting on intel by default (DRM_I915_KMS) not set
>>    in my .config. I will enable that and see if this fixes this issue, if
>> not then I will test those patches out.
>
> Could you test the patches without switching to KMS first? Otherwise,
> the underlying bugs aren't going to get fixed for anyone else...
>

Thanks a who lot for that.. machine wakes up perfectly with that patch..

dmesg of a patch applied with a good wakeup:

http://fpaste.org/7GA7/

only really thing now I am seeing is:
[drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking
[ 146.362007] render error detected, EIR: 0x00000010
[ 146.362007] page table error

but might just be cosmetic.

Justin P. Mattock
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