diff --git a/conts/posix/test0/src/undeftest.c b/conts/posix/test0/src/undeftest.c
new file mode 100644
index 0000000..bf991ce
--- /dev/null
+++ b/conts/posix/test0/src/undeftest.c
@@ -0,0 +1,29 @@
+/* 
+ * undeftest.c:
+ * Tests to see if kernel gracefully handles the undef exception
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <tests.h>
+#include <errno.h>
+#include INC_GLUE(memory.h)
+
+
+int undeftest(void)
+{
+       test_printf("UNDEF: Start\n");
+       
+       /* need a way to report FAIL case */
+       __asm__ __volatile__(".word 0xf1f0feed\n\t"); /* Some pattern for easy recongition */
+       
+       /* If code reaches here its passed */
+       printf("UNDEF TEST          -- PASSED --\n");
+       test_printf("UNDEF: Passed\n");
+
+       return 0;
+}