--- src/sys/i386/i386/Attic/nexus.c	2005/05/24 20:59:05	1.14
+++ src/sys/i386/i386/Attic/nexus.c	2005/05/25 01:44:04	1.15
@@ -538,15 +538,19 @@ nexus_setup_intr(device_t bus, device_t
 		mask = &cam_imask;
 		break;
 	case INTR_TYPE_CLK:
-		mask = 0;
+		mask = NULL;
 		printf("nexus: Warning: do not know what imask to use for INTR_TYPE_CLK\n");
 		break;
 	case INTR_TYPE_MISC:
-		mask = 0;
+		mask = NULL;
 		break;
 	default:
 		panic("still using grody create_intr interface");
 	}
+	if (serializer && mask != NULL) {
+		device_printf(child, "nexus_setup_intr: Warning, driver must set interrupt type to INTR_TYPE_MISC when using a serializer.\n");
+		mask = NULL;
+	}
 	if (flags & INTR_FAST)
 		icflags |= INTR_FAST;