diff --git a/include/linux/irq.h b/include/linux/irq.h
index 1695054e8c63909a62b8e12d16fe5ca1c8cc625c..44657197fcb03de46c060e7634c73f3e126038d7 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -161,6 +161,7 @@ struct irq_desc {
 	unsigned int		wake_depth;	/* nested wake enables */
 	unsigned int		irq_count;	/* For detecting broken IRQs */
 	unsigned int		irqs_unhandled;
+	unsigned long		last_unhandled;	/* Aging timer for unhandled count */
 	spinlock_t		lock;
 #ifdef CONFIG_SMP
 	cpumask_t		affinity;
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index bd9e272d55e9f007984b06e0999f6a37bb7208e1..32b161972fad2cda220f3f4698e9fb565017b6a1 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -172,7 +172,17 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc,
 		    irqreturn_t action_ret)
 {
 	if (unlikely(action_ret != IRQ_HANDLED)) {
-		desc->irqs_unhandled++;
+		/*
+		 * If we are seeing only the odd spurious IRQ caused by
+		 * bus asynchronicity then don't eventually trigger an error,
+		 * otherwise the couter becomes a doomsday timer for otherwise
+		 * working systems
+		 */
+		if (jiffies - desc->last_unhandled > HZ/10)
+			desc->irqs_unhandled = 1;
+		else
+			desc->irqs_unhandled++;
+		desc->last_unhandled = jiffies;
 		if (unlikely(action_ret != IRQ_NONE))
 			report_bad_irq(irq, desc, action_ret);
 	}