Re: Kernel preemption

[Hubert Feyrer <hubert%feyrer.de@localhost>]

On Sat, 26 Apr 2008, Andrew Doran wrote:
> - Adds code for the FPU stuff.

I admit I'm too dumb to understand the parts of the patch that covers 
this, but I'm still curious: IIRC FPU state is saved when entering from 
userland to kernel, and restored when going back. Also, IIUC no FPU code 
is used (allowed?) inside the kernel, right?

In what context/scenario does the FPU state need handling, if the above 
assumptions are correct?

Thanks!


 - Hubert

P.S.: On making the kernel preemptible: AWESOME!