From: Zdenek Pavlas <pavlas@nextra.cz>

On any x86 without cpuid, early_cpu_detect() left x86_cache_alignment as
zero, so kmem_cache_init() calls cache_estimate() with align == 0, and
it loops forever. I've tried this trivial fix, and it works for me.

Andi Kleen looked over this, and ok'd it.