On 04/14/2011 02:11 AM, Ingo Molnar wrote:
>
> I'd strongly suggest we revert back to the old and proven allocation order,
> as
> long as it results in valid layouts. Even if we figure out this particular
> GART/GTT assumption there might be a dozen others in other types of hardware.
>
Yes, but we might also be hiding a real bug which bites other hardware.
We have found real and very serious bugs in the kernel this way before
-- things where drivers scribble over random memory and allocation order
exposed the failure in a predictable way, as opposed to random crashes.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
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