Merge remote branch 'cros/upstream' into tempbranch

client/tests/kvm/kvm_subprocess.py

 #!/usr/bin/python
 """
 A class and functions used for running and controlling child processes.
 
 @copyright: 2008-2009 Red Hat Inc.
 """
 
 import os, sys, pty, select, termios, fcntl
 
 
@@ skipping 543 matching lines @@
     """
     Kill all kvm_tail threads.
 
     After calling this function no new threads should be started.
     """
     global _thread_kill_requested
     _thread_kill_requested = True
     for t in threading.enumerate():
         if hasattr(t, "name") and t.name.startswith("tail_thread"):
             t.join(10)
+    _thread_kill_requested = False
 
 
 class kvm_tail(kvm_spawn):
     """
     This class runs a child process in the background and sends its output in
     real time, line-by-line, to a callback function.
 
     See kvm_spawn's docstring.
 
     This class uses a single pipe reader to read data in real time from the
@@ skipping 629 matching lines @@
         @param timeout: The duration (in seconds) to wait until a match is
                 found
         @param internal_timeout: The timeout to pass to read_nonblocking
         @param print_func: A function to be used to print the data being read
                 (should take a string parameter)
         """
         (status, output) = self.get_command_status_output(command, timeout,
                                                           internal_timeout,
                                                           print_func)
         return output