Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
On 2020-05-13 12:39 p.m., Rui Salvaterra wrote:
> On Wed, 13 May 2020 at 11:27, Michel Dänzer <michel@daenzer.net> 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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