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Date: Tue, 07 Oct 2014 16:04:54 -0400
From: Adam McDougall <mcdouga9@egr.msu.edu>
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To: Konstantin Belousov <kostikbel@gmail.com>
Subject: Re: Ver 2 of the patch [was: Re: i915 driver update testing]
References: <20141003170258.GG26076@kib.kiev.ua>
 <54315D3A.3090902@egr.msu.edu> <20141005170007.GZ26076@kib.kiev.ua>
 <5433260C.5050901@egr.msu.edu> <20141007042043.GG26076@kib.kiev.ua>
 <5433E408.2010601@egr.msu.edu> <20141007164419.GB2153@kib.kiev.ua>
 <20141007180106.GD2153@kib.kiev.ua>
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On 10/07/2014 14:01, Konstantin Belousov wrote:
> On Tue, Oct 07, 2014 at 07:44:19PM +0300, Konstantin Belousov wrote:
>> >From the same frame, please do
>> p *(struct drm_i915_private *)(dev->private)
> 
> I probably figured out what is wrong, but it is still interesting to
> see this piece of data.
> 
> For everybody who has the issue with blank screen or panic after
> the patch:
> 1. please try the updated patch,
> 	https://www.kib.kiev.ua/kib/drm/i915.2.patch
> 2. if you use "kldload i915kms" to test the patch and get the blank
>    screen, verify do you get panic or just a black screen.  It is
>    expected for sc, not so for vt.  For vt, if you do get blank screen
>    and not a panic, do not load i915kms manually and run the X server.
>    I am interested if running X server does show proper output.
> 

Backtrace seems the same, I repeated the prior commands:
http://www.egr.msu.edu/~mcdouga9/i915-patch2-1.txt