diff --git a/platform/avr-ravenusb/cdc_task.c b/platform/avr-ravenusb/cdc_task.c
index de2981e96..c1c4b0483 100644
--- a/platform/avr-ravenusb/cdc_task.c
+++ b/platform/avr-ravenusb/cdc_task.c
@@ -581,7 +581,22 @@ extern uip_ds6_netif_t uip_ds6_if;
 				PRINTF_P(PSTR("  * Configuration: %d, USB<->ETH is "), usb_configuration_nb);
                 if (usb_eth_is_active == 0) PRINTF_P(PSTR("not "));
                 PRINTF_P(PSTR("active\n\r"));
-                
+
+#if CONFIG_STACK_MONITOR
+/* See contiki-raven-main.c for initialization of the magic numbers */
+{
+extern uint16_t __bss_end;
+uint16_t p=(uint16_t)&__bss_end;
+    do {
+      if (*(uint16_t *)p != 0x4242) {
+        printf_P(PSTR("  * Never-used stack > %d bytes\n\r"),p-(uint16_t)&__bss_end);
+        break;
+      }
+      p+=100;
+    } while (p<RAMEND-100);
+}
+#endif
+             
 				break;
 
 			case 'e':
diff --git a/platform/avr-ravenusb/contiki-conf.h b/platform/avr-ravenusb/contiki-conf.h
index f1ada7b0e..aa9426b41 100644
--- a/platform/avr-ravenusb/contiki-conf.h
+++ b/platform/avr-ravenusb/contiki-conf.h
@@ -99,6 +99,9 @@ unsigned long clock_seconds(void);
 /* Starting address for code received via the codeprop facility. Not tested on Jackdaw */
 //#define EEPROMFS_ADDR_CODEPROP 0x8000
 
+/* Simple stack monitor. Status is displayed from the USB menu with 'm' command */
+#define CONFIG_STACK_MONITOR 1
+
 /* ************************************************************************** */
 //#pragma mark USB Ethernet Hooks
 /* ************************************************************************** */
@@ -349,7 +352,7 @@ extern void mac_log_802_15_4_rx(const uint8_t* buffer, size_t total_len);
 #define UIP_CONF_ND6_RETRANS_TIMER  10000
 
 /* Save all the RAM we can */
-#define PROCESS_CONF_NO_PROCESS_NAMES 0
+#define PROCESS_CONF_NO_PROCESS_NAMES 1
 #undef QUEUEBUF_CONF_NUM
 #define QUEUEBUF_CONF_NUM           2
 #undef QUEUEBUF_CONF_REF_NUM
diff --git a/platform/avr-ravenusb/contiki-raven-main.c b/platform/avr-ravenusb/contiki-raven-main.c
index 57288dc31..4a6bb7401 100644
--- a/platform/avr-ravenusb/contiki-raven-main.c
+++ b/platform/avr-ravenusb/contiki-raven-main.c
@@ -157,7 +157,8 @@ PROCESS_THREAD(border_router_process, ev, data)
   memcpy_P(buf,dag_id,sizeof(dag_id));
   dag = rpl_set_root((uip_ip6addr_t *)buf);
 
-/* Assign bbbb::11 to the uip stack, and bbbb::1 to the host network interface, e.g. $ip -6 address add bbbb::1/64 dev usb0 */
+/* Assign bbbb::200 to the uip stack, and bbbb::1 to the host network interface, e.g. $ip -6 address add bbbb::1/64 dev usb0 */
+/* Note the jackdaw uip stack will get packets intended for usb if they have the same address! */
 /* $ifconfig usb0 -arp on Ubuntu to skip the neighbor solicitations. Add explicit neighbors on other OSs */
   if(dag != NULL) {
     PRINTF("created a new RPL dag\n");
@@ -168,7 +169,7 @@ PROCESS_THREAD(border_router_process, ev, data)
 
 #else
     uip_ip6addr_t ipaddr;
-    uip_ip6addr(&ipaddr, 0xbbbb, 0, 0, 0, 0, 0, 0, 0x1);
+    uip_ip6addr(&ipaddr, 0xbbbb, 0, 0, 0, 0, 0, 0, 0x200);
     uip_ds6_addr_add(&ipaddr, 0, ADDR_MANUAL);
     rpl_set_prefix(dag, &ipaddr, 64);
 #endif
@@ -304,6 +305,20 @@ static void initialize(void) {
   watchdog_init();
   watchdog_start();
 
+#if CONFIG_STACK_MONITOR
+  /* Simple stack pointer highwater monitor. The 'm' command in cdc_task.c
+   * looks for the first overwritten magic number.
+   */
+{
+extern uint16_t __bss_end;
+uint16_t p=(uint16_t)&__bss_end;
+    do {
+      *(uint16_t *)p = 0x4242;
+      p+=100;
+    } while (p<RAMEND-100);
+}
+#endif
+
   /* Initialize hardware */
   // Checks for "finger", jumps to DFU if present.
   init_lowlevel();