Re: Buying RAM expansion from project money
On Tue, Nov 5, 2013 at 8:00 AM, Michael Schmitz
<schmitz@biophys.uni-duesseldorf.de> wrote:
>> I discussed a bit more with Jens, and he's not worried at all, as no
>> accelerator card implements RMW bus cycles. So it should just work, like
>> with all other memory we're running Linux in now.
>>
>> So, let's try?
>
> What could possibly happen to modify the page tables without the CPU getting
> involved? DMA?
Yep. And the kernel is too blame if it orders a DMA controller to do that...
> Let's give this a try.
Indeed!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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