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Date: Mon, 06 Oct 2014 19:30:20 -0400
From: Adam McDougall <mcdouga9@egr.msu.edu>
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To: Konstantin Belousov <kostikbel@gmail.com>
Subject: Re: i915 driver update testing
References: <20141003170258.GG26076@kib.kiev.ua>
 <54315D3A.3090902@egr.msu.edu> <20141005170007.GZ26076@kib.kiev.ua>
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On 10/05/2014 13:00, Konstantin Belousov wrote:
> On Sun, Oct 05, 2014 at 11:01:14AM -0400, Adam McDougall wrote:
>> (kgdb) #0  doadump (textdump=1) at pcpu.h:219
>> #1  0xffffffff80661efd in kern_reboot (howto=260)
>>     at /usr/src/sys/kern/kern_shutdown.c:447
>> #2  0xffffffff80662450 in panic (fmt=<value optimized out>)
>>     at /usr/src/sys/kern/kern_shutdown.c:746
>> #3  0xffffffff808fe52f in trap_fatal (frame=<value optimized out>,
>>     eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:866
>> #4  0xffffffff808fe87c in trap_pfault (frame=0xfffffe01fe0b21b0,
>>     usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:677
>> #5  0xffffffff808fde9e in trap (frame=0xfffffe01fe0b21b0)
>>     at /usr/src/sys/amd64/amd64/trap.c:426
>> #6  0xffffffff808e00a2 in calltrap ()
>>     at /usr/src/sys/amd64/amd64/exception.S:231
>> #7  0xffffffff8166808e in i915_write32 (dev_priv=0xfffff800031f1c00,
>>     reg=20736, val=0)
>>     at
>> /usr/src/sys/modules/drm2/i915kms/../../../dev/drm2/i915/i915_drv.c:992
> In kgdb, from this frame, please do
> p *dev_priv
> p *(dev_priv->dev)
> p *(dev_priv->info)

http://www.egr.msu.edu/~mcdouga9/i915-1b.txt

Sorry for the delay.  I duplicated this on a spare computer of the same
model so I can test easier.