In message <Pine.NEB.4.53.0511071021140.9620@david.technoskunk.fur>, "John D. B
aker" writes:
>I've been trying to build optimized kernels for my relatively ancient
>IBM ThinkPad 760XD.  It has an early-generation pentium-mmx 166MHz CPU.
>
>When I build a kernel with any CPU-specific optimization flags
>(-march=pentium-mmx, -march=pentium or even just -mcpu=pentium-mmx,
>-mcpu=pentium which should produce i386-compatible code), the resulting
>kernel hangs immediately upon loading.
>
>As long as the kernel is built with no cpu-optimizations, it boots and
>runs just fine, although probably non-optimally.
>
>Has anyone else experienced a problem like this?  Any clues on what may
>be causing this behavior or ways to build cpu-optimized kernels that will
>run?

Not obviously.  We have been building kernels with those options for a while,
no problems.

-s