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[V13-prerc]: REGRESSION: "*ERROR* Timed out waiting for forcewake old ack to clear"

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Jörg Otte

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Nov 16, 2013, 6:30:02 AM11/16/13
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On startup I get the following error display on the console:
"*ERROR* Timed out waiting for forcewake old ack to clear"

I already reported this error a year ago at the time of v3.7
( see https://lkml.org/lkml/2012/11/27/355)
which was fixed later on.

Now this error is back again. Kernel 3.12.0-09888-gf63c48


Jörg
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Daniel Vetter

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Nov 16, 2013, 7:10:01 AM11/16/13
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On Sat, Nov 16, 2013 at 12:28 PM, Jörg Otte <jrg....@gmail.com> wrote:
> On startup I get the following error display on the console:
> "*ERROR* Timed out waiting for forcewake old ack to clear"
>
> I already reported this error a year ago at the time of v3.7
> ( see https://lkml.org/lkml/2012/11/27/355)
> which was fixed later on.
>
> Now this error is back again. Kernel 3.12.0-09888-gf63c48

Please boot with drm.debug=0xe, reproduce the issue and then attach
the complete dmesg (including all the boot message, so if it takes a
while to reproduce please grab an boot dmesg, too).

Also adding the right mailing lists, see MAINTAINERS.

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

Daniel Vetter

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Nov 16, 2013, 10:00:02 AM11/16/13
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On Sat, Nov 16, 2013 at 3:39 PM, Jörg Otte <jrg....@gmail.com> wrote:
> 2013/11/16 Daniel Vetter <daniel...@ffwll.ch>:
>> On Sat, Nov 16, 2013 at 12:28 PM, Jörg Otte <jrg....@gmail.com> wrote:
>>> On startup I get the following error display on the console:
>>> "*ERROR* Timed out waiting for forcewake old ack to clear"
>>>
>>> I already reported this error a year ago at the time of v3.7
>>> ( see https://lkml.org/lkml/2012/11/27/355)
>>> which was fixed later on.
>>>
>>> Now this error is back again. Kernel 3.12.0-09888-gf63c48
>>
>> Please boot with drm.debug=0xe, reproduce the issue and then attach
>> the complete dmesg (including all the boot message, so if it takes a
>> while to reproduce please grab an boot dmesg, too).
>>
>> Also adding the right mailing lists, see MAINTAINERS.
>>
>> Thanks, Daniel
>> --
>> Daniel Vetter
>> Software Engineer, Intel Corporation
>> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
>
> Thanks, Jörg

Yeah, we've broken the early uncore sanitize stuff again :( I'll send
out a patch asap.
-Daniel
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