ttm: merge ttm_backend & ttm_tt, introduce ttm dma allocator V5

[Jerome Glisse]

On Mon, Nov 14, 2011 at 05:06:42PM +0100, Thomas Hellstrom wrote:
> On 11/14/2011 05:02 PM, Jerome Glisse wrote:
> >On Mon, Nov 14, 2011 at 9:49 AM, Thomas Hellstrom<thellstrom at vmware.com>  wrote:
> >>On 11/11/2011 11:47 PM, j.glisse at gmail.com wrote:
> >>>So attached is updated serie of patch with fixes for swaping issue
> >>>that also impacted memory accounting.
> >>Jerome,
> >>Out of interest, what was the swapping issue?
> >>
> >>/Thomas
> >>
> >>
> >The page list was NULL and some access ended up freaking the kernel
> >and oom kicked in for some reason i still don't understand. Bottom
> >line things were going south in a split second leaving me with no log
> >or access, i thought it was accounting not working as it was what i
> >tested at the time. I should have tested accouting without the
> >patchset
> >
> >Cheers,
> >Jerome
> 
> Still, I think you have a point in the fact that *when* finally the
> OOM killer kicks in,
> it probably doesn't have a way to associate user-space created bos
> with processes
> and kill the right process.
> 
> /Thomas
> 

Btw can you review patch 14 as it touch vmwgfx, i am pretty sure
i got it right.

Cheers,
Jerome