linux-kernel - Re: i915_hangcheck_hung problem with 3.8-rc2+ (Linus's latest tree)

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Message-ID: <50ED1C12.2090608@gmail.com>
Date:	Wed, 09 Jan 2013 11:28:18 +0400
From:	Lijo Antony <lijo.kernel@...il.com>
To:	Dave Airlie <airlied@...il.com>
CC:	Greg KH <gregkh@...uxfoundation.org>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	daniel.vetter@...ll.ch, intel-gfx@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: i915_hangcheck_hung problem with 3.8-rc2+ (Linus's latest tree)

On 01/09/2013 09:31 AM, Dave Airlie wrote:
> On Wed, Jan 9, 2013 at 2:25 PM, Greg KH <gregkh@...uxfoundation.org> wrote:
>> On Wed, Jan 09, 2013 at 01:42:39PM +1000, Dave Airlie wrote:
>>>>> Hi all,
>>>>>
>>>>> I've hit this 3 times today on Linus's latest 3.8-rc2+ tree:
>>>>>
>>>>> [11868.414648] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
>>>>> [11868.414655] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state
>>>>> [11870.408342] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
>>>>> [11870.408412] [drm:i915_reset] *ERROR* GPU hanging too fast, declaring wedged!
>>>>> [11870.408414] [drm:i915_reset] *ERROR* Failed to reset chip.
>>>>> [11883.083225] gnome-shell[19396]: segfault at 218 ip 00007feef5f32333 sp 00007ffffc1dc930 error 4 in i965_dri.so[7feef5ecb000+d0000]
>>>>
>>>> I just hit this again.  And, as the kernel was asking for it, attached
>>>> is the i915_error_state file, compressed due to the size of it.
>>>>
>>> Welcome to sink hole that is
>>> https://bugs.freedesktop.org/show_bug.cgi?id=55984
>>>
>>> 3 months and ticking, Intel guys are all running away from it saying
>>> they can't reproduce, everyone else on planet seems to reproduce quite
>>> easily.
>>>
>>> Its generally considered a bug in the relocation/shrinker/no idea category,
>>
>> Ugh, what a mess.
>>
>>> Assuming you have an Ironlake machine which I'm going to guess you do.
>>
>> I don't know, it's an old i5 machine that has never had any video
>> problems for many years now.  How do I tell?
>
> lspci -nn probably an 8086:0046 device.
>
> Old i5 probably means original i5 which means ironlake.
>

I have also seen this a couple of times on 3.7 and 3.8-rc1.
Most of the times I was watching youtube video in chrome. Nothing 
crashed though(I am not running gnome shell). System recovered after few 
seconds.

I didn't see this on 3.8-rc2 yet, probably because I haven't watched any 
video.

-lijo



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