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From: Jaswinder Singh Rajput on 13 May 2010 18:30
Hello Chris,

I am also getting display error on another PC :

[ 34.198957] render error detected, EIR: 0x00000010
[ 34.198972] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
[ 34.198998] render error detected, EIR: 0x00000010


dmesg : http://userweb.kernel.org/~jaswinder/P4_HT/dmesg-2634-rc7-tip.txt
..config : http://userweb.kernel.org/~jaswinder/P4_HT/config-2634-rc7-tip.txt
i915_handle_error :
http://userweb.kernel.org/~jaswinder/P4_HT/i915_error_state_P4.txt


If you need more information, please let me know.

Thanks,
--
Jaswinder Singh.
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From: Chris Wilson on 13 May 2010 18:50
On Fri, 14 May 2010 03:59:08 +0530, Jaswinder Singh Rajput <jaswinderlinux(a)gmail.com> wrote:
> Hello Chris,
>
> I am also getting display error on another PC :
>
> [ 34.198957] render error detected, EIR: 0x00000010
> [ 34.198972] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
> [ 34.198998] render error detected, EIR: 0x00000010

Wow. Things are really amiss there. MI_SET_CONTEXT (the first instruction
in the batch) was removed in

commit 45f45c73469f1bd46a1b6fb206f2e9e5e4fd66b3
Author: Eric Anholt <eric(a)anholt.net>
Date: Mon Dec 29 11:26:11 2008 -0800

Remove logical context setup.

which explains why the destination bo is not on the active list, you
have a pre-GEM UMS xf86-video-intel (so the batchbuffer is using absolute
addressing rather than relocs and the kernel memory manager). The hardware
is reporting a PTE error (in the overlay plane!) and the single active
command is to clear the absolute buffer. As it is not being tracked by the
kernel, I can't tell you what's wrong with the buffer, but most probably
either the size or its stride is illegal in the context of that command.
Or maybe even the GTT hasn't been fully initialised for the buffer, it is
impossible to tell.

In short, you can trade this bug against the risk of GTT incoherency that
is endemic on i8xx by updating your driver.

--
Chris Wilson, Intel Open Source Technology Centre
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From: Oliver Neukum on 14 May 2010 02:50
Am Freitag, 14. Mai 2010 00:29:08 schrieb Jaswinder Singh Rajput:
> Hello Chris,
>
> I am also getting display error on another PC :
>
> [ 34.198957] render error detected, EIR: 0x00000010
> [ 34.198972] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
> [ 34.198998] render error detected, EIR: 0x00000010

Can you try using Xvideo and OpenGL at the same time?

Regards
Oliver
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From: Jaswinder Singh Rajput on 14 May 2010 03:30
Hello Oliver,

On Fri, May 14, 2010 at 12:18 PM, Oliver Neukum <oliver(a)neukum.org> wrote:
> Am Freitag, 14. Mai 2010 00:29:08 schrieb Jaswinder Singh Rajput:
>> Hello Chris,
>>
>> I am also getting display error on another PC :
>>
>> [ � 34.198957] render error detected, EIR: 0x00000010
>> [ � 34.198972] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
>> [ � 34.198998] render error detected, EIR: 0x00000010
>
> Can you try using Xvideo and OpenGL at the same time?
>

Can you please let me know how can I do so. Can you tell me some test
procedure. I have Fedora 10 on this PC.

Thanks,
--
Jaswinder Singh.
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From: Jaswinder Singh Rajput on 14 May 2010 03:40
Hello Chris,

On Fri, May 14, 2010 at 4:16 AM, Chris Wilson <chris(a)chris-wilson.co.uk> wrote:
> On Fri, 14 May 2010 03:59:08 +0530, Jaswinder Singh Rajput <jaswinderlinux(a)gmail.com> wrote:
>> Hello Chris,
>>
>> I am also getting display error on another PC :
>>
>> [ � 34.198957] render error detected, EIR: 0x00000010
>> [ � 34.198972] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
>> [ � 34.198998] render error detected, EIR: 0x00000010
>
> Wow. Things are really amiss there. MI_SET_CONTEXT (the first instruction
> in the batch) was removed in
>
> �commit 45f45c73469f1bd46a1b6fb206f2e9e5e4fd66b3
> �Author: Eric Anholt <eric(a)anholt.net>
> �Date: � Mon Dec 29 11:26:11 2008 -0800
>
> � � �Remove logical context setup.
>
> which explains why the destination bo is not on the active list, you
> have a pre-GEM UMS xf86-video-intel (so the batchbuffer is using absolute
> addressing rather than relocs and the kernel memory manager). The hardware
> is reporting a PTE error (in the overlay plane!) and the single active
> command is to clear the absolute buffer. As it is not being tracked by the
> kernel, I can't tell you what's wrong with the buffer, but most probably
> either the size or its stride is illegal in the context of that command.
> Or maybe even the GTT hasn't been fully initialised for the buffer, it is
> impossible to tell.
>
> In short, you can trade this bug against the risk of GTT incoherency that
> is endemic on i8xx by updating your driver.
>

I am getting XWindows on this old machine so this is not so serious
issue, I can ignore the error message ;-)

I am more worried about Acer machine where I am not getting XWindows.

Thanks,
--
Jaswinder Singh.
--
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