13 May
2020
13 May
'20
10:57 a.m.
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?
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Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer