diff -up nfs-utils-1.2.3/utils/mountd/rmtab.c.orig nfs-utils-1.2.3/utils/mountd/rmtab.c
--- nfs-utils-1.2.3/utils/mountd/rmtab.c.orig	2011-01-25 11:09:29.484980000 -0500
+++ nfs-utils-1.2.3/utils/mountd/rmtab.c	2011-01-25 11:09:40.693309000 -0500
@@ -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");