Index: head/sys/dev/xen/blkfront/blkfront.c
===================================================================
--- head/sys/dev/xen/blkfront/blkfront.c
+++ head/sys/dev/xen/blkfront/blkfront.c
@@ -1578,11 +1578,14 @@
 		break;
 
 	case XenbusStateClosing:
-		if (sc->xbd_users > 0)
-			xenbus_dev_error(dev, -EBUSY,
-			    "Device in use; refusing to close");
-		else
+		if (sc->xbd_users > 0) {
+			device_printf(dev, "detaching with pending users\n");
+			KASSERT(sc->xbd_disk != NULL,
+			    ("NULL disk with pending users\n"));
+			disk_gone(sc->xbd_disk);
+		} else {
 			xbd_closing(dev);
+		}
 		break;	
 	}
 }