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diff --git a/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/struct/err.D_PROTO_ARG.DupStructAssoc.d b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/struct/err.D_PROTO_ARG.DupStructAssoc.d
new file mode 100644
index 000000000000..0eea2d8dafc2
--- /dev/null
+++ b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/struct/err.D_PROTO_ARG.DupStructAssoc.d
@@ -0,0 +1,80 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+/*
+ * ASSERTION:
+ * Declaring an associative array with a struct to be its key type and trying to
+ * index with another struct having the same composition throws an error.
+ *
+ * SECTION: Structs and Unions/Structs
+ *
+ */
+
+#pragma D option quiet
+
+struct record {
+ int position;
+ char content;
+};
+
+struct pirate {
+ int position;
+ char content;
+};
+
+struct record r1;
+struct record r2;
+struct pirate p1;
+struct pirate p2;
+
+BEGIN
+{
+ r1.position = 1;
+ r1.content = 'a';
+
+ r2.position = 2;
+ r2.content = 'b';
+
+ p1.position = 1;
+ p1.content = 'a';
+
+ p2.position = 2;
+ p2.content = 'b';
+
+ assoc_array[r1] = 1000;
+ assoc_array[r2] = 2000;
+ assoc_array[p1] = 3333;
+ assoc_array[p2] = 4444;
+
+ printf("assoc_array[r1]: %d\n", assoc_array[r1]);
+ printf("assoc_array[r2]: %d\n", assoc_array[r2]);
+ printf("assoc_array[p1]: %d\n", assoc_array[p1]);
+ printf("assoc_array[p2]: %d\n", assoc_array[p2]);
+
+ exit(0);
+}