Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM

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On 2020-05-13 12:39 p.m., Rui Salvaterra wrote:
> On Wed, 13 May 2020 at 11:27, Michel Dänzer <michel@xxxxxxxxxxx> wrote:
>>
>> The only theoretical problem there was that the kernel still had a
>> cacheable mapping of the same memory, and any access via that (e.g.
>> prefetch due to access to a neighbouring page) could trigger a machine
>> check. But I don't remember ever hitting that. Maybe I was just lucky
>> all those years.
> 
> If that's the issue, I assure you nowadays you can hit it quite
> reliably, at least on my iBook G4.

How do you know you're hitting that particular issue?


-- 
Earthling Michel Dänzer               |               https://redhat.com
Libre software enthusiast             |             Mesa and X developer
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