BASE_MEMORY
err = uvm_pglistalloc(BASE_MEMORY, 0, (paddr_t)-1, 0, 0,
&sc->ram_backing, BASE_MEMORY/PAGE_SIZE, UVM_PLA_WAITOK);
KASSERT(iter == BASE_MEMORY);
err = uvm_pglistalloc(BASE_MEMORY, 0, (paddr_t)-1, 0, 0,
&sc->ram_backing, BASE_MEMORY/PAGE_SIZE, UVM_PLA_WAITOK);
KASSERT(iter == BASE_MEMORY);