tests/hwsim/check_kernel.py

   1 # kernel message checker module
   2 #
   3 # Copyright (c) 2013, Intel Corporation
   4 #
   5 # Author: Johannes Berg <johannes@sipsolutions.net>
   6 #
   7 # This software may be distributed under the terms of the BSD license.
   8 # See README for more details.
   9 #
  10 """
  11 Tests for kernel messages to find if there were any issues in them.
  12 """
  13
  14 import re
  15
  16 lockdep_messages = [
  17   'possible circular locking dependency',
  18   '.*-safe -> .*unsafe lock order detected',
  19   'possible recursive locking detected',
  20   'inconsistent lock state',
  21   'possible irq lock inversion dependency',
  22   'suspicious RCU usage',
  23 ]
  24 lockdep = r'(\[\s*)?INFO: (%s)' % ('|'.join(lockdep_messages), )
  25 issue = re.compile('(\[[0-9 .]*\] )?(WARNING:|BUG:|%s).*' % lockdep)
  26
  27 def check_kernel(logfile):
  28     for line in open(logfile, 'r'):
  29         if issue.match(line):
  30             return False
  31     return True