Re: Floating point math in kernel interrupt -- am I doing this right?

On s=F6ndag 05 februari 2006 20.40, Jeremy Friesner wrote:

If I disable the saving and restoring of the FPU registers=20
entirely, they don't seem to occur at all (at least within the bounds of =

my

testing so far -- 15+ hours).

Is this with full mix?

Then I would really suspect the save/restore code.
Saving and restoring floating point state can be very tricky.
Do try to find an example in the manual (or possibly in the kernel itself -=
=20
context switch code)

Until this works reliably there is no point in looking for other error=20
sources.  You could also try to add code inside the save-resore that destro=
ys=20
all of the floating point registers to be able to spot errors.

/RogerL