+ /*
+ * Because the user's callback is invoked in eal interrupt
+ * callback, the interrupt callback need to be finished before
+ * it can be unregistered when detaching device. So finish
+ * callback soon and use a deferred removal to detach device
+ * is need. It is a workaround, once the device detaching be
+ * moved into the eal in the future, the deferred removal could
+ * be deleted.
+ */
+ if (rte_eal_alarm_set(100000,
+ rmv_port_callback, (void *)(intptr_t)port_id))
+ RTE_LOG(ERR, EAL,
+ "Could not set up deferred device removal\n");