[Intel-gfx] Recent regression on G965 with KMS

[Jesse Barnes]

On Friday 20 February 2009 00:09:48 Kenny Graunke wrote:
> Hello!
>
> I just pulled from drm-intel-next today, and have had frequent but
> intermittent hangs on my G965 with KMS.  They occur during ordinary use
> (like trying to write this email!)  I do have compiz running, though.
>
> Once it goes haywire, my dmesg is completely full of stuff like this:
> [drm:i915_gem_execbuffer] *ERROR* Failed to pin buffers -12
> [drm:i915_gem_evict_something] *ERROR* inactive empty 1 request empty 1
> flushing empty 1 [drm:i915_gem_object_bind_to_gtt] *ERROR* Failed to evict
> a buffer -12 [drm:i915_gem_object_pin] *ERROR* Failure to bind:
> -12<3>[drm:i915_gem_evict_something] *ERROR* inactive empty 1 request empty
> 1 flushing empty 1
>
> (If it's helpful, the full dmesg is at
> http://www.whitecape.org/files/intel-gfx/kms-dmesg for now.)
>
> I used git bisect, and it seems to have started with this commit:
> commit deb1542d3b69727f7e55bc247796b7716ad95941
>     drm/i915: Keep refs on the object over the lifetime of vmas for GTT
> mmap.
>
> I'd be glad to test any patches or try and grab more information - let me
> know how I can help.

Hm this should only affect the GTT mapped case... lemme look where we might be 
using it...
-- 
Jesse Barnes, Intel Open Source Technology Center