Index: head/sys/geom/part/g_part.c
===================================================================
--- head/sys/geom/part/g_part.c
+++ head/sys/geom/part/g_part.c
@@ -890,7 +890,8 @@
 		if (!entry->gpe_deleted) {
 			/* Notify consumers that provider might be changed. */
 			if (entry->gpe_modified && (
-			    entry->gpe_pp->acw + entry->gpe_pp->ace) == 0)
+			    entry->gpe_pp->acw + entry->gpe_pp->ace +
+			    entry->gpe_pp->acr) == 0)
 				g_media_changed(entry->gpe_pp, M_NOWAIT);
 			entry->gpe_created = 0;
 			entry->gpe_modified = 0;