--- arch/sh/kernel/smp.c

+++ arch/sh/kernel/smp.c

@@ -69,6 +69,7 @@ asmlinkage void __cpuinit start_secondar

unsigned int cpu;

struct mm_struct *mm = &init_mm;

+ enable_mmu();

atomic_inc(&mm->mm_count);

atomic_inc(&mm->mm_users);

current->active_mm = mm;