irq_stack 419 arch/x86/include/asm/processor.h char irq_stack[IRQ_STACK_SIZE]; irq_stack 458 arch/x86/include/asm/processor.h DECLARE_PER_CPU(struct irq_stack *, hardirq_stack); irq_stack 459 arch/x86/include/asm/processor.h DECLARE_PER_CPU(struct irq_stack *, softirq_stack);