1import os, time 2import subprocess 3from autotest_lib.client.bin import test 4from autotest_lib.client.common_lib import utils, error 5 6 7class iosched_bugs(test.test): 8 version = 1 9 preserve_srcdir = True 10 11 def initialize(self): 12 self.job.require_gcc() 13 14 15 def setup(self): 16 os.chdir(self.srcdir) 17 utils.make() 18 19 20 def execute(self): 21 os.chdir(self.tmpdir) 22 (p1, _) = utils.run_bg('dd if=/dev/hda3 of=/dev/null') 23 time.sleep(60) 24 blah = os.path.join(self.tmpdir, 'blah') 25 dirty_bin = os.path.join(self.srcdir, 'dirty') 26 dirty_op = os.path.join(self.tmpdir, 'dirty') 27 utils.system('echo AA > ' + blah) 28 p2 = subprocess.Popen(dirty_bin + ' ' + blah + ' 1 > ' + dirty_op, 29 shell=True) 30 time.sleep(600) 31 if p2.poll() is None: 32 utils.nuke_subprocess(p1) 33 utils.nuke_subprocess(p2) 34 raise error.TestFail('Writes made no progress') 35# Commenting out use of utils.run as there is a timeout bug 36# 37# try: 38# utils.run(dirty_bin + ' ' + blah + '1 > ' + dirty_op, 900, False, 39# None, None) 40# except: 41# utils.nuke_subprocess(p1) 42# raise error.TestFail('Writes made no progress') 43 utils.nuke_subprocess(p1) 44