Etnaviv crashes on glmark2

[Wladimir J. van der Laan]

> Etnaviv isn't CMA based, so this is certainly not a valid fix. It
> probably doesn't crash anymore, as it isn't properly freeing the pages
> backing the GEM object.
> 
> I've seen this crash in the early days of etnaviv a few times, but it
> hasn't happened to me in a long time.

I don't recognize this either, I haven't seen a kernel memory managment error while
running glmark2 (or anything w/ etnaviv) for a long time. Strange.

Regards,
Wladimir