1 import logging, time, shutil 2 from autotest_lib.client.common_lib import error 3 from autotest_lib.client.virt import virt_utils 4 5 6 def run_watchdog(test, params, env): 7 """ 8 Configure watchdog, crash the guest and check if watchdog_action occurs. 9 @param test: kvm test object. 10 @param params: Dictionary with test parameters. 11 @param env: Dictionary with the test environment. 12 """ 13 vm = env.get_vm(params["main_vm"]) 14 vm.verify_alive() 15 timeout = int(params.get("login_timeout", 360)) 16 session = vm.wait_for_login(timeout=timeout) 17 relogin_timeout = int(params.get("relogin_timeout", 240)) 18 watchdog_enable_cmd = "chkconfig watchdog on && service watchdog start" 19 20 def watchdog_action_reset(): 21 """ 22 Trigger a crash dump through sysrq-trigger 23 Ensure watchdog_action(reset) occur. 24 """ 25 session = vm.wait_for_login(timeout=timeout) 26 27 logging.info("Triggering crash on vm") 28 crash_cmd = "echo c > /proc/sysrq-trigger" 29 session.sendline(crash_cmd) 30 31 if not virt_utils.wait_for(lambda: not session.is_responsive(), 32 240, 0, 1): 33 raise error.TestFail("Could not trigger crash") 34 35 logging.info("Waiting for kernel watchdog_action to take place") 36 session = vm.wait_for_login(timeout=relogin_timeout) 37 38 logging.info("Enabling watchdog service...") 39 session.cmd(watchdog_enable_cmd, timeout=320) 40 watchdog_action_reset() 41 42 # Close stablished session 43 session.close() 44
