Messages in this thread | | | Date | Sun, 29 Jun 2008 15:07:00 +0200 | From | Andi Kleen <> | Subject | Re: ABI change for device drivers using future AVX instruction set |
| |
>>> We could change kernel_fpu_begin() not to disable >>> preemption, but instead set a task flag. When we get the "no device" >>> fault, if the flag is set, save the fpu state into the kernel fpu save >>> area >> >> What kernel fpu save area do you mean? >> > > A new one, of course. >
With that we would be eventually in the mess Agner talked about.
-Andi
| |