--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test_rwlock-unlock-memcpy.c	Sun Aug 11 12:18:09 2019 -0400
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2018 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <jeffpc/synch.h>
+
+#include "test.c"
+
+void test(void)
+{
+	LOCK_CLASS(lc);
+	struct rwlock a;
+	struct rwlock b;
+
+	RWINIT(&a, &lc);
+
+	b = a;
+
+	test_set_panic_string("lockdep: Aborting - bad rwlock magic");
+
+	RWUNLOCK(&b);
+}