--On Thursday, May 12, 2005 10:07 PM +0000 "Kentaro A. Kurahone" <kurahone@sigusr1.org> wrote:
>
> Early C3 designs lack cmpxchg8.  GCC -march=i686 generates code that
> uses cmpxchg8, leading to the illegal opcode fauilure.  You may want to
> target either 486 or 586.  Sufficiently new gcc supposedly has a c3
> arch, which also works around this problem.


Shouldn't the boot code be compiled using the lowest possible common denominator (presumably i386 in this case)?