diff --git a/tasks/ktests.c b/kernel/tests.c
similarity index 90%
rename from tasks/ktests.c
rename to kernel/tests.c
index 4ea4e453..0caaec11 100644
--- a/tasks/ktests.c
+++ b/kernel/tests.c
@@ -29,8 +29,6 @@ static sem_t 		consuming, producing;
 static mailbox_int32_t	mbox;
 static int 		val = 0;
 
-int STDCALL userfoo(void* arg);
-
 static int STDCALL consumer(void* arg)
 {
 	int 	i, m = 0;
@@ -85,6 +83,23 @@ static int STDCALL foo(void* arg)
 	return 42;
 }
 
+static int STDCALL userfoo(void* arg)
+{
+	int i;
+
+	if (!arg)
+		return 0;
+
+	for (i = 0; i < 5; i++)
+		SYSCALL3(__NR_write, 0, (char*)arg, strlen((char*)arg));
+
+	// demo of a general protection fault
+	//kprintf("test user\n");
+
+	/* task exit */
+	SYSCALL1(__NR_exit, 0);
+}
+
 static int STDCALL join_test(void* arg)
 {
 	tid_t 	id;