MPC8540 : What's "SPE used in kernel" ?

[Philippe De Muyter]

Hi Johanness,

On Sat, Feb 23, 2008 at 10:51:08AM +0100, Johannes Berg wrote:
> 
> > My first trial used ARCH=ppc and caused this infinity of "SPE used in kernel"
> > messages, but I then recompiled linux with ARCH=powerpc.  With the message
> > not ifdef'ed out, this second kernel does not emit "SPE used in kernel"
> > messages,
> 
> If I were to venture a guess I'd point to the fact that the arch/powerpc
> Makefile contains
> 
> # No SPE instruction when building kernel
> KBUILD_CFLAGS += $(call cc-option,-mno-spe)  

OK, that's a good point.

But as I said in the same mail, processes still dies unexpectedly.

> 
> while the arch/ppc one doesn't.
> 
> johannes

Philippe