Index: geom_slice.c
===================================================================
RCS file: /usr/repo/src/sys/geom/geom_slice.c,v
retrieving revision 1.57
diff -u -p -r1.57 geom_slice.c
--- geom_slice.c	3 Nov 2004 09:08:10 -0000	1.57
+++ geom_slice.c	13 Sep 2005 11:40:09 -0000
@@ -339,6 +339,7 @@ g_slice_config(struct g_geom *gp, u_int 
 			return (0);
 		if (bootverbose)
 			printf("GEOM: Deconfigure %s\n", pp->name);
+		pp->flags |= G_PF_WITHER;
 		g_orphan_provider(pp, ENXIO);
 		gsl->provider = NULL;
 		gsp->nprovider--;