[Intel-gfx] [i915gm] kernel warning: failed to unbind object for tiling switch

[Adam Lantos]

Hi,

Sure, I would have ran gpu-dump if I had sshd enabled, which
-apparently- wasn't the case.
Next time I encounter a lockup, I'll post the register dump.


thanks,
 Adam


On Mon, Apr 27, 2009 at 11:30 PM, Eric Anholt <eric at anholt.net> wrote:
> On Mon, 2009-04-27 at 22:50 +0200, Adam Lantos wrote:
>> Hello Eric,
>>
>> Unfortunately no, I was using kde-4.2.2 with compositing on, nothing
>> graphics-heavy app in particular, only opera,okular,pidgin,dolphin
>> were running. I had some lockups like this before, but I cannot
>> reproduce it, and the previous ones haven't left traces in logs like
>> this one.
>>
>> If I remember well, 3 out of 5 lockups appeared when someone wrote me
>> in pidgin and plasma highlighted the window entry in the taskbar. But
>> it can be some weird coincidence, and even if they are related, only
>> 1% of events trigger this issue.
>
> Thanks!  That's a lot more detail.  I don't think any of us are running
> the kwin compositor (the GNOME desktop's pretty dominant around here),
> and maybe we should be playing with that more.
>
> I did just compare the 2D driver code in master to 2.7, and it doesn't
> look like anything is missing that would affect this.  There should only
> be a couple of paths that switch tiling modes on objects, and the only
> one I can think of that could potentially interact with pinning is a
> mode switch, which you didn't say you were doing.
>
> If you've got any more details on how to trigger it, I'd love to see it
> in a bug report.
>
> For other hangs (not correlated with that warning), intel-gpu-dump with
> how to reproduce if possible would be great.
>
> --
> Eric Anholt
> eric at anholt.net                         eric.anholt at intel.com
>
>
>