Index: examples/gc_no_raii/test/badlll.c
===================================================================
--- examples/gc_no_raii/test/badlll.c	(revision 90152a4860529aff7214be01cd22abd37012cd19)
+++ examples/gc_no_raii/test/badlll.c	(revision 90152a4860529aff7214be01cd22abd37012cd19)
@@ -0,0 +1,71 @@
+#include "gc.h"
+
+#include <stdio.h>
+
+struct List_t
+{
+	gcpointer(List_t) next;
+	int val;
+};
+
+typedef gcpointer(List_t) LLL;
+
+#define MAX (1024 * 1)
+
+LLL buildLLL(int sz)
+{
+	int i = 0;
+	LLL ll0;
+
+	gcmalloc( &ll0 );
+	List_t* ll0_ptr = get( &ll0 );
+	ll0_ptr->val = i;
+	LLL lll = ll0;
+
+	for (i = 1; i < sz; i++)
+	{
+		LLL llc;
+		gcmalloc( &llc );
+		List_t* llc_ptr = get( &llc );
+		llc_ptr->val = i;
+		List_t* lll_ptr = get( &lll );
+		lll_ptr->next = llc;
+
+		lll = llc;
+	}
+
+	check(is_valid( &ll0.internal ));
+
+	return ll0;
+}
+
+void testLLL(LLL lll)
+{
+	unsigned char *counted;
+
+	counted = (unsigned char *) calloc(MAX, sizeof(unsigned char));
+	while (lll)
+	{
+		List_t* lll_ptr = get( &lll );
+		counted[lll_ptr->val]++;
+		if (counted[lll_ptr->val] > 1)
+		{
+			fprintf(stderr, "ERROR! Encountered %d twice!\n", lll_ptr->val);
+			exit(1);
+		}
+		lll = lll_ptr->next;
+	}
+
+	return;
+}
+
+int main(void)
+{
+	LLL mylll;
+
+	mylll = buildLLL(MAX);
+
+	testLLL(mylll);
+
+	return 0;
+}