blob: aa96b42c65247a15f63611e5260f31f7a8aa1563 [file] [log] [blame]
# Copyright (c) 2010 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, re
from autotest_lib.client.bin import utils
from autotest_lib.client.common_lib import error
from autotest_lib.client.cros import crash_test
_KCRASH_FILE = '/sys/kernel/debug/preserved/kcrash'
class logging_KernelCrash(crash_test.CrashTest):
version = 1
def _test_reporter_startup(self):
"""Test that the crash_reporter is handling kernel crashes."""
if not self._log_reader.can_find('Enabling kernel crash handling'):
if not self._log_reader.can_find(
'Kernel does not support crash dumping'):
raise error.TestFail(
'Could not find kernel crash enabling message')
def _get_kcrash_name(self):
filename_match ='Stored kcrash to (\S+)',
if not filename_match:
return None
def _is_signature_match(self, signature):
return (re.match(r'kernel-write_breakme-[0-9A-F]{8}$', signature) is
not None)
def _test_reporter_kcrash_storage(self):
"""Test that crash_reporter has properly stored the kcrash report."""
if not self._log_reader.can_find('Cleared kernel crash diagnostics'):
raise error.TestFail('Could not find clearing message')
announce_match =
r'Received .* from kernel \(signature ([^\)]+)\) \(([^\)]+)\)',
if not announce_match:
raise error.TestFail('Could not find kernel crash announcement')
if not self._is_signature_match(
raise error.TestFail(
'Kernel crash signature (%s) did not match expected pattern' %
kcrash_report = self._get_kcrash_name()
if self._consent:
if kcrash_report is None:
raise error.TestFail(
'Could not find message with kcrash filename')
if != 'handling':
raise error.TestFail('Did not announce handling of kcrash')
if kcrash_report is not None:
raise error.TestFail('Should not have found kcrash filename')
if != 'ignoring - no consent':
raise error.TestFail('Did not announce ignoring of kcrash')
if not os.path.exists(kcrash_report):
raise error.TestFail('Crash report %s gone' % kcrash_report)
report_contents = utils.read_file(kcrash_report)
if not 'kernel BUG at fs/proc/breakme.c' in report_contents:
raise error.TestFail('Crash report has unexpected contents')
if not os.path.exists(_KCRASH_FILE):
raise error.TestFail('Could not find %s' % _KCRASH_FILE)
kcrash_file_contents = utils.read_file(_KCRASH_FILE)
if kcrash_file_contents != '':
raise error.TestFail('%s was not properly cleared' % _KCRASH_FILE)
def _test_sender_send_kcrash(self):
"""Test that crash_sender properly sends the crash report."""
if not self._consent:
kcrash_report = self._get_kcrash_name()
if not os.path.exists(kcrash_report):
raise error.TestFail('Crash report %s gone' % kcrash_report)
result = self._call_sender_one_crash(
if (not result['send_attempt'] or not result['send_success'] or
raise error.TestFail('kcrash not sent properly')
if result['exec_name'] != 'kernel' or result['report_kind'] != 'kcrash':
raise error.TestFail('kcrash exec name or report kind wrong')
if result['report_payload'] != kcrash_report:
raise error.TestFail('Sent the wrong kcrash report')
if not self._is_signature_match(result['sig']):
raise error.TestFail('Sent the wrong kcrash signature')
def run_once(self, is_before, consent):
# We manage consent saving across tests.
self._automatic_consent_saving = False
self._consent = consent
if is_before:
self.run_crash_tests(['reporter_startup'], must_run_all=False)
# Leave crash sending paused for the kernel crash.
self._leave_crash_sending = False