GPU Hang in Intel Driver

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On Wed, Apr 3, 2013 at 5:58 PM, Dihan Wickremasuriya <
dwickremasuriya at rethinkrobotics.com> wrote:

> Thanks for the quick response and adding the mailing list. I did in fact
> attach the error_state in my original mail. Please let me know if it's not
> the one you were looking for (re-attached).
>

Oops, missed that one. You have a gen7 ivb machine, so the bug you've
reference is _definitely_ not yours - that one's for gen2.

Now looking at your error state I've noticed that your mesa is using a
massively outdated version of 3DSTATE_HIER_DEPTH_BUFFER, which has been
fixed with 8.0, the broken version shipped with 7.11.

Please upgrade to the latest released versions of mesa, libdrm,
xf86-video-intel, your bug is very likely fixed already (since 8.0 is
pretty old for gen7).

Yours, Daniel

>
> Also added a subject to the thread.
>
> Best regards,
> Dihan
>
> On Wed, Apr 3, 2013 at 11:46 AM, Daniel Vetter <daniel.vetter at ffwll.ch>wrote:
>
>> Hi all,
>>
>> Two things:
>> - Please _always_ include a public mailing list when reporting bugs, your
>> dear maintainer sometimes slacks off.
>> - We need to see the error_state before we can assess what kind of hang
>> you have (it's like gettting a SIGSEGV for a normal program, no two gpu
>> hangs are the same ...).
>>
>> Cheers, Daniel
>>
>> On Wed, Apr 3, 2013 at 5:42 PM, Dihan Wickremasuriya <
>> dwickremasuriya at rethinkrobotics.com> wrote:
>>
>>> Hi Chris/Daniel,
>>>
>>> This is Dihan from Rethink Robotics and we were hoping you could help
>>> with the GPU hang problem in the i915 driver mentioned in bug #26345:
>>> https://bugs.freedesktop.org/show_bug.cgi?id=26345
>>>
>>> We are running into the same problem with the 3.8.5 kernel (which has
>>> the fix mentioned in comment #153 of the bug report) when running a Qt 5
>>> application in Gentoo. At times the entire X session would freeze. The
>>> x11-perf tests described in the bug report run without any issues though.
>>>
>>> Would you happen to know whether this is because of an issue in the
>>> driver that is not currently being addressed by the fix? I have attached
>>> the Xorg log, the dmesg output and i915_error_state from a hung session.
>>> Please let me know if you need any more info. Thanks in advance!
>>>
>>> Best regards,
>>> Dihan
>>>
>>
>>
>>
>> --
>> Daniel Vetter
>> Software Engineer, Intel Corporation
>> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
>>
>
>


-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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