On 01/25/2013 03:06 PM, Jan Kiszka wrote:
> Hi all,
>
> yesterday I pushed a fix to my for-upstream queue that properly disables
> all xsave-dependent CPU features (AVX/AVX2 namely). However, this is no
> real solution for us as it blocks a lot of acceleration potential on
> current Intel CPUs.
>
> Did anyone already look into this in more details? Is it just a matter
> of implementing the necessary context switching bits? Are there known
> pitfalls?
The known pitfalls of FPU support is that we never get it right the
first time. And debugging why it fails is hard.
--
Gilles.
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