Index: busdma_machdep.c
===================================================================
RCS file: /space2/ncvs/src/sys/ia64/ia64/busdma_machdep.c,v
retrieving revision 1.10
diff -u -p -r1.10 busdma_machdep.c
--- busdma_machdep.c	4 Oct 2002 20:40:35 -0000	1.10
+++ busdma_machdep.c	18 Jan 2003 17:16:11 -0000
@@ -325,7 +325,7 @@ bus_dmamap_destroy(bus_dma_tag_t dmat, b
 #endif
 	}
 
-	if (map != NULL) {
+	if (map != NULL && map != &nobounce_dmamap) {
 		if (STAILQ_FIRST(&map->bpages) != NULL)
 			return (EBUSY);
 		free(map, M_DEVBUF);