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

[Dave Kleikamp <dave.kleikamp@oracle.com>]

On 01/09/2013 01:28 AM, Lijo Antony wrote:
> On 01/09/2013 09:31 AM, Dave Airlie wrote:
>> On Wed, Jan 9, 2013 at 2:25 PM, Greg KH <gregkh@linuxfoundation.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.

I can easily reproduce it running glxgears on 3.8-rc1 or 3.8-rc2.

00:02.0 VGA compatible controller [0300]: Intel Corporation Core
Processor Integrated Graphics Controller [8086:0046] (rev 02)

Thinkpad T410

Shaggy

> 
> -lijo
> 
> 
>