diff -rNup nfs-utils-1.2.3_orig/utils/mountd/rmtab.c nfs-utils-1.2.3/utils/mountd/rmtab.c
--- nfs-utils-1.2.3/utils/mountd/rmtab.c	2010-09-28 14:24:16.000000000 +0200
+++ nfs-utils-1.2.3/utils/mountd/rmtab.c	2011-01-12 14:44:22.320000000 +0100
@@ -205,6 +205,7 @@ mountlist_list(void)
 	}
 	if (stb.st_mtime != last_mtime) {
 		mountlist_freeall(mlist);
+		mlist=NULL;
 		last_mtime = stb.st_mtime;
 
 		setrmtabent("r");