Hi Paul,

Sorry for the late reply, attached is my proposal:
I've added the ARCH_SLAB_MINALIGN flag, together with some documentation 
and a small restructuring.
What do you think? It's just the mm/slab.c change, you would have to add

#ifndef CONFIG_DEBUG_SLAB
#define ARCH_SLAB_MINALIGN   8
#endif

into your sh64 header files. ARCH_SLAB_MINALIGN includes 
ARCH_KMALLOC_MINALIGN, so you do not have to set that flag. It doesn't 
hurt, though.

Not really tested - it boots on x86, but that probably doesn't count.

--
    Manfred