OpTestPstore.py:This patch checks for new files creation under /sys/fs/pstore

After triggering crash with kdump, it checks for
new files creation under /sys/fs/pstore

Signed-off-by: shirisha Ganta <[email protected]>

Author: shirishaganta

testcases/OpTestPstore.py

@@ -0,0 +1,125 @@
+#!/usr/bin/env python3
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: op-test-framework/testcases/OpTestPstore.py $
+#
+# OpenPOWER Automated Test Project
+#
+# Contributors Listed Below - COPYRIGHT 2020
+# [+] International Business Machines Corp.
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+#
+# IBM_PROLOG_END_TAG
+
+'''
+OpTestPstore
+------------
+
+This module can contain testcases related to Pstore.
+1. Trigger crash.
+2. Check new files are created or not under /sys/fs/pstore
+'''
+
+import time
+import subprocess
+import re
+import sys
+import pexpect
+import os
+import time
+
+
+from common.OpTestConstants import OpTestConstants as BMC_CONST
+from common.OpTestError import OpTestError
+from common.OpTestSOL import OpSOLMonitorThread
+from common import OpTestHMC, OpTestFSP
+
+import unittest
+import OpTestConfiguration
+from common.OpTestSystem import OpSystemState
+from common.OpTestSSH import ConsoleState as SSHConnectionState
+from common.Exceptions import KernelOOPS, KernelKdump, KernelPanic, KernelFADUMP
+
+import logging
+import OpTestLogger
+log = OpTestLogger.optest_logger_glob.get_logger(__name__)
+
+class OpTestPstore(unittest.TestCase):
+    def setUp(self):
+        conf = OpTestConfiguration.conf
+        self.cv_SYSTEM = conf.system()
+        self.con = self.cv_SYSTEM.console
+        self.c = self.cv_SYSTEM.cv_HOST.get_ssh_connection()
+    
+    def kernel_crash(self):
+        try:
+            self.con.run_command( "echo c > /proc/sysrq-trigger")
+        except (KernelOOPS, KernelKdump, KernelPanic, KernelFADUMP):
+            self.cv_SYSTEM.goto_state(OpSystemState.OFF)
+            self.cv_SYSTEM.goto_state(OpSystemState.OS)
+            
+    def pstore_file_check(self):
+        #This function will validate new files are created
+        #or not under /sys/fs/pstore after crash
+        time_init = self.con.run_command( "date +%s")
+        result = self.con.run_command( 'ls -1 /sys/fs/pstore')
+        l = []
+        for line in result:
+            files_list =  "".join(re.findall("[a-zA-Z]",line))
+            l.append(files_list)
+        for i in result:
+            self.con.run_command( "cd /sys/fs/pstore")
+            time_created = self.con.run_command( "stat -c%%Z %s" % i)
+            if (time_init > time_created):
+                print("New file %s is created" % i)
+            else:
+                print("New file %s is not created" % i)
+
+            
+class Pstore(OpTestPstore):
+
+    def setup_test(self):
+        self.con.run_command( "which stty && stty cols 300; which stty && stty rows 30")
+        self.con.run_command( "uname -a")
+        res = self.con.run_command( "cat /etc/os-release | grep NAME | head -1")
+        if 'SLES' in res[0].strip():
+            self.distro = 'SLES'
+            self.con.run_command( "sed -i -e 's/crashkernel=.* / /' -e 's/crashkernel=.*/\"/' /etc/default/grub")
+            self.con.run_command( "grub2-mkconfig -o /boot/grub2/grub.cfg")
+            self.con.run_command( "sync; sync; sleep 5")
+            self.con.run_command( "sed -i '/GRUB_CMDLINE_LINUX_DEFAULT/s/\"$/ crashkernel=2G-4G:512M,4G-64G:1024M,64G-128G:2048M,128G-:4096M\"/' /etc/default/grub")
+            self.con.run_command( "grub2-mkconfig -o /boot/grub2/grub.cfg")
+            self.con.run_command( "sync; sync; sleep 5")
+            self.cv_SYSTEM.goto_state(OpSystemState.OFF)
+            self.cv_SYSTEM.goto_state(OpSystemState.OS)
+        elif 'Red Hat Enterprise Linux' in res[0].strip():
+            self.distro = 'RHEL'
+        else:
+            self.skipTest("Currently test is supported only on sles and rhel")
+        res = self.con.run_command( "systemctl status kdump.service | grep active")
+        if 'exited' not in res[0].strip():
+            print("Kdump service is not configured properly")
+
+    def runTest(self):
+        self.setup_test()
+        print("=================== Testing Kdump=======================")
+        self.kernel_crash()
+        self.pstore_file_check()
+        print("=================Kdump Disable==========================")
+        self.con.run_command("service kdump stop")
+        self.con.run_command("echo 10 > /proc/sys/kernel/panic")
+        self.kernel_crash()
+        self.pstore_file_check()