> On Fri, 9 Mar 2001, Matt Dillon wrote:
>
> > You can't safely do FP instructions in the kernel. I do not
> > believe the FP context is saved/restored between processes in kernel
> > mode, only from user mode. The kernel saves and restores the fp
state
> > in the few places it uses FP instructions (for memory copying).
> > In anycase, I think there'd be a problem here.
>
> The last time I tried using FP in a device driver, it caused kernel
> panics (I hate it when that happens...)
Seeing as the original requestor wanted to use FP functions to do number
crunching in screen savers, would adding a few strategic FP save/restore
calls in the syscons driver be enough to allow FP calculations in screen
saver modules?
--
Matt Emmerton
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