Index: uspace/Makefile
===================================================================
--- uspace/Makefile	(revision a82d33ddd445f066d5ec3c33c4ded8ca0f89946d)
+++ uspace/Makefile	(revision 02ee69da8615d568777a4ea7affffbf486673e15)
@@ -54,4 +54,5 @@
 	app/nterm \
 	app/redir \
+	app/rcutest \
 	app/sbi \
 	app/sportdmp \
Index: uspace/app/rcutest/Makefile
===================================================================
--- uspace/app/rcutest/Makefile	(revision 02ee69da8615d568777a4ea7affffbf486673e15)
+++ uspace/app/rcutest/Makefile	(revision 02ee69da8615d568777a4ea7affffbf486673e15)
@@ -0,0 +1,41 @@
+#
+# Copyright (c) 2012 Adam Hraska
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# - Redistributions of source code must retain the above copyright
+#   notice, this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright
+#   notice, this list of conditions and the following disclaimer in the
+#   documentation and/or other materials provided with the distribution.
+# - The name of the author may not be used to endorse or promote products
+#   derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+USPACE_PREFIX = ../..
+
+LIBS = $(LIBURCU_PREFIX)/liburcu.a
+
+EXTRA_CFLAGS += -I$(LIBURCU_PREFIX)
+	
+BINARY = rcutest
+
+SOURCES = \
+	rcutest.c
+
+include $(USPACE_PREFIX)/Makefile.common
+
Index: uspace/app/rcutest/rcutest.c
===================================================================
--- uspace/app/rcutest/rcutest.c	(revision 02ee69da8615d568777a4ea7affffbf486673e15)
+++ uspace/app/rcutest/rcutest.c	(revision 02ee69da8615d568777a4ea7affffbf486673e15)
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2012 Adam Hraska
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup test
+ * @{
+ */
+
+/**
+ * @file rcutest.c
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <mem.h>
+#include <errno.h>
+#include <thread.h>
+#include <assert.h>
+
+#include <fibril.h>
+
+#include <rcu.h>
+
+
+static void invoke_rcu(void)
+{
+	rcu_read_lock();
+	rcu_read_lock();
+	/* nop */
+	rcu_read_unlock();
+	rcu_read_unlock();
+	
+	rcu_synchronize();
+	
+	printf("Woohoo, did not crash after invoking rcu functions.\n");
+}
+
+static void print_usage(void)
+{
+	printf("Usage: rcutest \n");
+}
+
+
+int main(int argc, char **argv)
+{
+	if (argc >= 2) {
+		print_usage();
+		return 1;
+	}
+	
+	rcu_register_fibril();
+	
+	invoke_rcu();
+	/* todo: impl */
+	
+	rcu_deregister_fibril();
+	
+	return 0;
+}
+
+
+/**
+ * @}
+ */