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diff --git a/bertos/kern/proc_test/coop_test.c b/bertos/kern/proc_test/coop_test.c
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+++ b/bertos/kern/proc_test/coop_test.c
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+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2009 Develer S.r.l. (http://www.develer.com/)
+ * -->
+ *
+ *
+ * \brief Test kernel preemption.
+ *
+ * This testcase spawns TASKS parallel threads that runs for TIME seconds. They
+ * continuously spin updating a global counter (one counter for each thread).
+ *
+ * At exit each thread checks if the others have been che chance to update
+ * their own counter. If not, it means the preemption didn't occur and the
+ * testcase returns an error message.
+ *
+ * Otherwise, if all the threads have been able to update their own counter it
+ * means preemption successfully occurs, since there is no active sleep inside
+ * each thread's implementation.
+ *
+ * \author Andrea Righi <arighi@develer.com>
+ *
+ * $test$: cp bertos/cfg/cfg_proc.h $cfgdir/
+ * $test$: echo  "#undef CONFIG_KERN" >> $cfgdir/cfg_proc.h
+ * $test$: echo "#define CONFIG_KERN 1" >> $cfgdir/cfg_proc.h
+ * $test$: cp bertos/cfg/cfg_monitor.h $cfgdir/
+ * $test$: sed -i "s/CONFIG_KERN_MONITOR 0/CONFIG_KERN_MONITOR 1/" $cfgdir/cfg_monitor.h
+ * $test$: cp bertos/cfg/cfg_signal.h $cfgdir/
+ * $test$: echo  "#undef CONFIG_KERN_SIGNALS" >> $cfgdir/cfg_signal.h
+ * $test$: echo "#define CONFIG_KERN_SIGNALS 1" >> $cfgdir/cfg_signal.h
+ *
+ * notest: all
+ */
+
+#include "../proc_test.c"