[coreboot] memset called to somewhere high on the stack (uncached)

[Myles Watson]

I'm seeing code reads to memset() in coreboot_ram interleaved with byte
writes to somewhere high on the stack (_estack -0x1fC).  This is a k8.

I can't find the place during the RAM stage when we are calling memset with
caches disabled.  Does this ring a bell for anyone?

Thanks,
Myles