platform_KernelErrorPaths: fix grepping bug

server/site_tests/platform_KernelErrorPaths/platform_KernelErrorPaths.py

 # Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging, os
 
 from autotest_lib.client.common_lib import error
 from autotest_lib.client.cros.crash_test import CrashTest as CrashTestDefs
 from autotest_lib.server import test
 
 class platform_KernelErrorPaths(test.test):
     version = 1
 
     def breakme(self, text):
         # This test is ensuring that the machine will reboot on any
         # tyoe of kernel panic.  If the sysctls below are not set
         # correctly, the machine will not reboot.  After verifying
         # that the machine has the proper sysctl state, we make it
         # reboot by writing to a /proc/breakme.
         #
         # 2011.03.09: ARM machines will currently fail due to
         #             'preserved RAM' not being enabled.
         self.client.run('sysctl kernel.panic|grep "kernel.panic = -1"');
         self.client.run('sysctl kernel.panic_on_oops|'
-                        'grep kernel.panic_on_oops = 1');
+                        'grep "kernel.panic_on_oops = 1"');
 
         command = "echo %s > /proc/breakme" % text
         logging.info("KernelErrorPaths: executing '%s' on %s" %
                      (command, self.client.hostname))
         try:
             # Simple sending text into /proc/breakme resets the target
             # immediately, leaving files unsaved to disk and the master ssh
             # connection wedged for a long time. The sequence below borrowed
             # from logging_KernelCrashServer.py makes sure that the test
             # proceeds smoothly.
@@ skipping 48 matching lines @@
         for action, text in test_tuples:
             # Delete crash results, if any
             self.client.run('rm -f %s/*' % crash_log_dir)
             boot_id = self.client.get_boot_id()
             self.breakme(action)  # This should cause target reset.
             self.client.wait_for_restart(timeout=25, old_boot_id=boot_id)
             result = self.client.run('cat %s/kernel.*.kcrash' % crash_log_dir)
             if text not in result.stdout:
                 raise error.TestFail(
                     "No '%s' in the log after sending '%s'" % (text, action))