x86: add debug of invalid per_cpu map accesses



dont crash survivable situations.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

parent c49a4955

include/asm-x86/topology.h

+5 −4

Original line number	Diff line number	Diff line
		@@ -70,7 +70,8 @@ static inline int cpu_to_node(int cpu)
		if (x86_cpu_to_node_map_early_ptr) {
		printk("KERN_NOTICE cpu_to_node(%d): usage too early!\n",
		(int)cpu);
		BUG();
		dump_stack();
		return ((int *)x86_cpu_to_node_map_early_ptr)[cpu];
		}
		#endif
		if (per_cpu_offset(cpu))