--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test_rwlock-wlock-held-nesting.c	Sun Aug 11 12:18:09 2019 -0400
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2018-2019 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"
+
+#define NLOCKS	(JEFFPC_LOCK_STACK_DEPTH + 1)
+
+void test(void)
+{
+	struct lock_class lc[NLOCKS];
+	struct rwlock lock[NLOCKS];
+	size_t i;
+
+	for (i = 0; i < NLOCKS; i++) {
+		char *name;
+
+		/* initialize the lock class */
+		asprintf(&name, "class %zu", i);
+		memset(&lc[i], 0, sizeof(struct lock_class));
+		lc[i].name = name;
+
+		/* initialize the lock */
+		RWINIT(&lock[i], &lc[i]);
+	}
+
+	/* lock enough to fill up the stack */
+	for (i = 0; i < (NLOCKS - 1); i++)
+		RWLOCK(&lock[i], true);
+
+	/* lock another lock to overflow the stack */
+	RWLOCK(&lock[NLOCKS - 1], true);
+
+	/* TODO: check lockdep state */
+}