On Wed, 12 May 2021, Christoph Hellwig <[email protected]> wrote:
> On Wed, May 12, 2021 at 01:15:03PM +0200, Peter Zijlstra wrote:
>> IIRC it's because of 74ffa5a3e685 ("mm: add remap_pfn_range_notrack"),
>> which added a sanity check to make sure expectations were met. It turns
>> out they were not.
>> 
>> The bug is not new, the warning is. AFAIK the i915 team is aware, but
>> other than that I've not followed.
>
>
> The actual culprit is b12d691ea5e0 ("i915: fix remap_io_sg to verify the
> pgprot"), but otherwise agreed.  Someone the i915 maintainers all seem
> to be on vacation as the previous report did not manage to trigger any
> kind of reply.

We are aware. I've been rattling the cages to get more attention.


BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center
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