extern void swap_low_mappings(void);
-extern void oops_begin(void);
-extern void die(const char *,struct pt_regs *,long);
-extern void __die(const char * str, struct pt_regs * regs, long err);
extern void __show_regs(struct pt_regs * regs);
extern void show_regs(struct pt_regs * regs);
extern void select_idle_routine(const struct cpuinfo_x86 *c);
extern void swiotlb_init(void);
-extern unsigned long max_mapnr;
-extern unsigned long end_pfn;
extern unsigned long table_start, table_end;
extern int exception_trace;