diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 09a53e7..5814c5a 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1686,6 +1686,18 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd)
 	struct usb_hcd		*hcd = __hcd;
 	int			start = hcd->state;
 
+#ifdef DEBUG
+	static unsigned int _enabled  = 0;
+	static unsigned int _disabled = 0;
+	if (raw_irqs_disabled()) {
+		_disabled++;
+	} else {
+		_enabled++;
+		printk(KERN_CRIT "USB_HCD_IRQ interrupts disabled %d enabled %d\n",
+		       _disabled, _enabled);
+	}
+#endif
+
 	if (unlikely(start == HC_STATE_HALT ||
 	    !test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)))
 		return IRQ_NONE;