Re: [Intel-gfx] [PATCH] drm/i915: Do not invalidate obj->pages under mempressure

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On 02/11/2015 05:02 AM, Daniel Vetter wrote:
> On Wed, Feb 11, 2015 at 1:55 AM, Sean V Kelley <seanvk@xxxxxxxxx>
> wrote:
>> No corruption seen.  I will add reloc domains to my growing audit
>> list.
> 
> One more for the libva audit list:
> 
> If you do any ioctl directly, please make sure that you clear the 
> ioctl structure with memset(&arg, 0, sizeof(arg)); or similar. 
> Otherwise when we extended them in upstream (which we're just
> doing, the kernel 0-fills the new fields automatically) it'll break
> because after a recompile there's now garbage in the new fields.
> 
> I just spent a while fixing up libdrm ;-) -Daniel
> 

Cleaned up the hybrid driver.  Found numerous instances of the
wrong reloc domain assignments, e.g., write_domain of 0. I've since
verified it was the root cause of the run 2 run issue. Also cleaned up
ioctl and structure clearing.

Thanks,

Sean
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