On Mon, Sep 19, 2016 at 7:41 AM, Vlastimil Babka <vbabka@xxxxxxx> wrote:
>
> There's no __GFP_NOWARN | __GFP_NORETRY, so it clearly wasn't the
> opportunistic "initial higher-order allocation". The logical conclusion is
> that it was a genuine order-3 allocation. 1kB allocation using order-3 would
> silently fail without OOM or warning, and then fallback to order-0.
Yes, I think you're right. The kcalloc() probably *was* a 32kB
allocation. In which case it's really more of a i915 driver issue.
I'll talk to the drm people and see if they can perhaps fix their
allocation patterns.
Linus
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