Add RCU Torture Test to Linux-Linaro Kernel.

This test code is to add RCU Torture test to Linux-linaro Kernel based images.

https://www.kernel.org/doc/Documentation/RCU/torture.txt

It has been validated in LAVA on both LSK 3.10 and 3.14

Signed-off by: Botao Sun <botao.sun@linaro.org>

Change-Id: I15ba99aac346abb13b94396059aa0ef776ac007d

1 files changed, 100 insertions, 0 deletions

diff --git a/ubuntu/scripts/rcutorture.py b/ubuntu/scripts/rcutorture.py
new file mode 100755
index 0000000..9e16c3b
--- /dev/null
+++ b/ubuntu/scripts/rcutorture.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+#
+# RCU Torture test for Linux Kernel.
+#
+# Copyright (C) 2010 - 2014, Linaro Limited.
+#
+# This program 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# Author: Botao Sun <botao.sun@linaro.org>
+
+import os
+import sys
+import time
+import shlex
+import subprocess
+
+# Result collection for LAVA
+debug_switcher = False
+def collect_result(testcase, result):
+    if debug_switcher == False:
+        subprocess.call(['lava-test-case', testcase, '--result', result])
+    else:
+        print ['lava-test-case', testcase, '--result', result]
+
+# Switch to home path of current user
+home_path = os.path.expanduser("~")
+os.chdir(home_path)
+print os.getcwd()
+
+# RCU Torture start check
+rcutorture_start = 'modprobe rcutorture'
+rcutorture_time = sys.argv[1]
+start_return = subprocess.call(shlex.split(rcutorture_start))
+if start_return != 0:
+    collect_result('rcutorture-start', 'fail')
+    collect_result('rcutorture-module-check', 'skip')
+    collect_result('rcutorture-end', 'skip')
+    sys.exit(1)
+else:
+    print 'RCU Torture test started. Test time is ' + str(rcutorture_time) + ' Seconds.'
+    collect_result('rcutorture-start', 'pass')
+    time.sleep(int(rcutorture_time))
+
+# RCU Torture module check
+lsmod_output = subprocess.check_output(['lsmod'])
+print lsmod_output
+lsmod_list = lsmod_output.split()
+torture_list = filter(lambda x:x.find('torture')!=-1, lsmod_list)
+if torture_list == []:
+    print 'Cannot find rcutorture module in lsmod, abort!'
+    collect_result('rcutorture-module-check', 'fail')
+    collect_result('rcutorture-end', 'skip')
+    sys.exit(1)
+elif len(torture_list) == 1:
+    rcutorture_end = 'rmmod ' + torture_list[0]
+    collect_result('rcutorture-module-check', 'pass')
+elif len(torture_list) > 1:
+    print 'More than one item with torture in name, please check it manually.'
+    collect_result('rcutorture-module-check', 'fail')
+    collect_result('rcutorture-end', 'skip')
+    sys.exit(1)
+
+# RCU Torture result check
+end_keyword = 'rcu-torture:--- End of test'
+end_return = subprocess.call(shlex.split(rcutorture_end))
+if end_return != 0:
+    print 'RCU Torture terminate command ran failed.'
+    collect_result('rcutorture-end', 'fail')
+    sys.exit(1)
+else:
+    keyword_counter = 0
+    output = subprocess.check_output(['dmesg'])
+    output_list = output.split('\n')
+    for item in output_list:
+        if end_keyword in item:
+            keyword_counter = keyword_counter + 1
+            print 'RCU Torture test has finished.'
+            if 'SUCCESS' in item:
+                collect_result('rcutorture-end', 'pass')
+                sys.exit(0)
+            else:
+                print 'RCU Torture finished with issues.'
+                collect_result('rcutorture-end', 'fail')
+                sys.exit(1)
+
+    if keyword_counter == 0:
+        print 'Cannot find the ending of this RCU Torture test.'
+        collect_result('rcutorture-end', 'fail')