Kalle Pokki wrote: > I guess Linux remaps the RAM as copy-back. But snooping should work > with copy-back caches, shouldn't it? Oh, well. The kernel boots just fine if I add flags |= _PAGE_WRITETHRU | _PAGE_COHERENT; in setbat() in arch/ppc/mm/ppc_mmu.c. But this should not depend on this kind of a hack, should it?