diff --git a/cts/CTSlab.py b/cts/CTSlab.py
index 7c4572a456..cc10c8248c 100755
--- a/cts/CTSlab.py
+++ b/cts/CTSlab.py
@@ -1,673 +1,674 @@
 #!/usr/bin/python
 
 '''CTS: Cluster Testing System: Lab environment module
  '''
 
 __copyright__='''
 Copyright (C) 2001,2005 Alan Robertson <alanr@unix.sh>
 Licensed under the GNU GPL.
 '''
 
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
 # as published by the Free Software Foundation; either version 2
 # of the License, or (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
 
 from UserDict import UserDict
 import sys, types, string, string, signal, os, socket
 
 pdir=os.path.dirname(sys.path[0])
 sys.path.insert(0, pdir) # So that things work from the source directory
 
 try:
     from cts.CTSvars    import *
     from cts.CM_ais     import *
     from cts.CM_lha     import crm_lha
     from cts.CTSaudits  import AuditList
     from cts.CTStests   import TestList
     from cts.CTSscenarios import *
 
 except ImportError:
     sys.stderr.write("abort: couldn't find cts libraries in [%s]\n" %
                      ' '.join(sys.path))
     sys.stderr.write("(check your install and PYTHONPATH)\n")
 
     # Now do it again to get more details
     from cts.CTSvars    import *
     from cts.CM_ais     import *
     from cts.CM_lha     import crm_lha
     from cts.CTSaudits  import AuditList
     from cts.CTStests   import TestList
     from cts.CTSscenarios import *
     sys.exit(-1)
 
 cm = None
 Tests = []
 Chosen = []
 scenario = None
 
 # Not really used, the handler in
 def sig_handler(signum, frame) :
     if cm: cm.log("Interrupted by signal %d"%signum)
     if scenario: scenario.summarize()
     if signum == 15 :
         if scenario: scenario.TearDown()
         sys.exit(1)
 
 class LabEnvironment(CtsLab):
 
     def __init__(self):
         CtsLab.__init__(self)
 
         #  Get a random seed for the random number generator.
         self["IPagent"] = "IPaddr2"
         self["DoStandby"] = 1
         self["DoFencing"] = 1
         self["XmitLoss"] = "0.0"
         self["RecvLoss"] = "0.0"
         self["ClobberCIB"] = 0
         self["CIBfilename"] = None
         self["CIBResource"] = 0
         self["DoBSC"]    = 0
         self["use_logd"] = 0
         self["oprofile"] = []
         self["warn-inactive"] = 0
         self["ListTests"] = 0
         self["benchmark"] = 0
         self["Schema"] = "pacemaker-2.0"
         self["Stack"] = "openais"
         self["stonith-type"] = "external/ssh"
         self["stonith-params"] = "hostlist=all,livedangerously=yes"
         self["logger"] = ([StdErrLog(self)])
         self["loop-minutes"] = 60
         self["valgrind-prefix"] = None
         self["valgrind-procs"] = "cib crmd attrd pengine stonith-ng"
         self["valgrind-opts"] = """--leak-check=full --show-reachable=yes --trace-children=no --num-callers=25 --gen-suppressions=all --suppressions="""+CTSvars.CTS_home+"""/cts.supp"""
         #self["valgrind-opts"] = """--trace-children=no --num-callers=25 --gen-suppressions=all --suppressions="""+CTSvars.CTS_home+"""/cts.supp"""
 
         self["experimental-tests"] = 0
         self["container-tests"] = 0
         self["valgrind-tests"] = 0
         self["unsafe-tests"] = 1
         self["loop-tests"] = 1
         self["scenario"] = "random"
         self["stats"] = 0
 
         master = socket.gethostname()
 
         # Use the IP where possible to avoid name lookup failures
         for ip in socket.gethostbyname_ex(master)[2]:
             if ip != "127.0.0.1":
                 master = ip
                 break;
         self["cts-master"] = master
 
 def usage(arg, status=1):
     print "Illegal argument " + arg
     print "usage: " + sys.argv[0] +" [options] number-of-iterations"
     print "\nCommon options: "
     print "\t [--nodes 'node list']        list of cluster nodes separated by whitespace"
     print "\t [--group | -g 'name']        use the nodes listed in the named DSH group (~/.dsh/groups/$name)"
     print "\t [--limit-nodes max]          only use the first 'max' cluster nodes supplied with --nodes"
     print "\t [--stack (v0|v1|cman|corosync|heartbeat|openais)]    which cluster stack is installed"
     print "\t [--list-tests]               list the valid tests"
     print "\t [--benchmark]                add the timing information"
     print "\t "
     print "Options that CTS will usually auto-detect correctly: "
     print "\t [--logfile path]             where should the test software look for logs from cluster nodes"
     print "\t [--syslog-facility name]     which syslog facility should the test software log to"
     print "\t [--at-boot (1|0)]            does the cluster software start at boot time"
     print "\t [--test-ip-base ip]          offset for generated IP address resources"
     print "\t "
     print "Options for release testing: "
     print "\t [--populate-resources | -r]  generate a sample configuration"
     print "\t [--choose name]              run only the named test"
     print "\t [--stonith (1 | 0 | yes | no | rhcs | ssh)]"
     print "\t [--once]                     run all valid tests once"
     print "\t "
     print "Additional (less common) options: "
     print "\t [--clobber-cib | -c ]        erase any existing configuration"
     print "\t [--outputfile path]          optional location for the test software to write logs to"
     print "\t [--trunc]                    truncate logfile before starting"
     print "\t [--xmit-loss lost-rate(0.0-1.0)]"
     print "\t [--recv-loss lost-rate(0.0-1.0)]"
     print "\t [--standby (1 | 0 | yes | no)]"
     print "\t [--fencing (1 | 0 | yes | no | rhcs | lha | openstack )]"
     print "\t [--stonith-type type]"
     print "\t [--stonith-args name=value]"
     print "\t [--bsc]"
     print "\t [--no-loop-tests]            dont run looping/time-based tests"
     print "\t [--no-unsafe-tests]          dont run tests that are unsafe for use with ocfs2/drbd"
     print "\t [--valgrind-tests]           include tests using valgrind"
     print "\t [--experimental-tests]       include experimental tests"
     print "\t [--container-tests]          include pacemaker_remote tests that run in lxc container resources"
     print "\t [--oprofile 'node list']     list of cluster nodes to run oprofile on]"
     print "\t [--qarsh]                    use the QARSH backdoor to access nodes instead of SSH"
     print "\t [--seed random_seed]"
     print "\t [--set option=value]"
     print "\t "
     print "\t Example: "
     print "\t    python ./CTSlab.py -g virt1 --stack cs -r --stonith ssh --schema pacemaker-1.0 500"
 
     sys.exit(status)
 
 
 #
 #   A little test code...
 #
 if __name__ == '__main__':
 
     Environment = LabEnvironment()
     rsh = RemoteExec(None, silent=True)
 
     NumIter = 0
     Version = 1
     LimitNodes = 0
     TruncateLog = 0
     ListTests = 0
     HaveSeed = 0
     node_list = ''
 
     # Set the signal handler
     signal.signal(15, sig_handler)
     signal.signal(10, sig_handler)
 
     # Process arguments...
 
     skipthis=None
     args=sys.argv[1:]
     for i in range(0, len(args)):
        if skipthis:
            skipthis=None
            continue
 
        elif args[i] == "-l" or args[i] == "--limit-nodes":
            skipthis=1
            LimitNodes = int(args[i+1])
 
        elif args[i] == "-r" or args[i] == "--populate-resources":
            Environment["CIBResource"] = 1
            Environment["ClobberCIB"] = 1
 
        elif args[i] == "-L" or args[i] == "--logfile":
            skipthis=1
            Environment["LogFileName"] = args[i+1]
 
        elif args[i] == "--outputfile":
            skipthis=1
            Environment["OutputFile"] = args[i+1]
 
        elif args[i] == "--ip" or args[i] == "--test-ip-base":
            skipthis=1
            Environment["IPBase"] = args[i+1]
            Environment["CIBResource"] = 1
            Environment["ClobberCIB"] = 1
 
        elif args[i] == "--oprofile":
            skipthis=1
            Environment["oprofile"] = args[i+1].split(' ')
 
        elif args[i] == "--trunc":
            Environment["TruncateLog"]=1
 
        elif args[i] == "--list-tests" or args[i] == "--list" :
            Environment["ListTests"]=1
 
        elif args[i] == "--benchmark":
            Environment["benchmark"]=1
 
        elif args[i] == "--bsc":
            Environment["DoBSC"] = 1
            Environment["scenario"] = "basic-sanity"
 
        elif args[i] == "--qarsh":
            Environment.rsh.enable_qarsh()
            rsh.enable_qarsh()
 
        elif args[i] == "--stonith" or args[i] == "--fencing":
            skipthis=1
            if args[i+1] == "1" or args[i+1] == "yes":
                Environment["DoFencing"]=1
            elif args[i+1] == "0" or args[i+1] == "no":
                Environment["DoFencing"]=0
            elif args[i+1] == "rhcs" or args[i+1] == "xvm" or args[i+1] == "virt":
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_xvm"
                Environment["stonith-params"] = "pcmk_arg_map=domain:uname,delay=0"
            elif args[i+1] == "scsi":
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_scsi"
                Environment["stonith-params"] = "delay=0"
            elif args[i+1] == "ssh" or args[i+1] == "lha":
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "external/ssh"
                Environment["stonith-params"] = "hostlist=all,livedangerously=yes"
            elif args[i+1] == "north":
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_apc"
                Environment["stonith-params"] = "ipaddr=north-apc,login=apc,passwd=apc,pcmk_host_map=north-01:2;north-02:3;north-03:4;north-04:5;north-05:6;north-06:7;north-07:9;north-08:10;north-09:11;north-10:12;north-11:13;north-12:14;north-13:15;north-14:18;north-15:17;north-16:19;"
            elif args[i+1] == "south":
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_apc"
                Environment["stonith-params"] = "ipaddr=south-apc,login=apc,passwd=apc,pcmk_host_map=south-01:2;south-02:3;south-03:4;south-04:5;south-05:6;south-06:7;south-07:9;south-08:10;south-09:11;south-10:12;south-11:13;south-12:14;south-13:15;south-14:18;south-15:17;south-16:19;"
            elif args[i+1] == "east":
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_apc"
                Environment["stonith-params"] = "ipaddr=east-apc,login=apc,passwd=apc,pcmk_host_map=east-01:2;east-02:3;east-03:4;east-04:5;east-05:6;east-06:7;east-07:9;east-08:10;east-09:11;east-10:12;east-11:13;east-12:14;east-13:15;east-14:18;east-15:17;east-16:19;"
            elif args[i+1] == "west":
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_apc"
                Environment["stonith-params"] = "ipaddr=west-apc,login=apc,passwd=apc,pcmk_host_map=west-01:2;west-02:3;west-03:4;west-04:5;west-05:6;west-06:7;west-07:9;west-08:10;west-09:11;west-10:12;west-11:13;west-12:14;west-13:15;west-14:18;west-15:17;west-16:19;"
            elif args[i+1] == "openstack":
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_openstack"
 
                print "Obtaining OpenStack credentials from the current environment"
                Environment["stonith-params"] = "region=%s,tenant=%s,auth=%s,user=%s,password=%s" % (
                    os.environ['OS_REGION_NAME'],
                    os.environ['OS_TENANT_NAME'],
                    os.environ['OS_AUTH_URL'],
                    os.environ['OS_USERNAME'],
                    os.environ['OS_PASSWORD']
                    )
 
            elif args[i+1] == "rhevm":
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_rhevm"
 
                print "Obtaining RHEV-M credentials from the current environment"
                Environment["stonith-params"] = "login=%s,passwd=%s,ipaddr=%s,ipport=%s,ssl=1,shell_timeout=10" % (
                    os.environ['RHEVM_USERNAME'],
                    os.environ['RHEVM_PASSWORD'],
                    os.environ['RHEVM_SERVER'],
                    os.environ['RHEVM_PORT'],
                    )
 
            else:
                usage(args[i+1])
 
        elif args[i] == "--stonith-type":
            Environment["stonith-type"] = args[i+1]
            skipthis=1
 
        elif args[i] == "--stonith-args":
            Environment["stonith-params"] = args[i+1]
            skipthis=1
 
        elif args[i] == "--standby":
            skipthis=1
            if args[i+1] == "1" or args[i+1] == "yes":
                Environment["DoStandby"] = 1
            elif args[i+1] == "0" or args[i+1] == "no":
                Environment["DoStandby"] = 0
            else:
                usage(args[i+1])
 
        elif args[i] == "--clobber-cib" or args[i] == "-c":
            Environment["ClobberCIB"] = 1
 
        elif args[i] == "--cib-filename":
            skipthis=1
            Environment["CIBfilename"] = args[i+1]
 
        elif args[i] == "--xmit-loss":
            try:
                float(args[i+1])
            except ValueError:
                print ("--xmit-loss parameter should be float")
                usage(args[i+1])
            skipthis=1
            Environment["XmitLoss"] = args[i+1]
 
        elif args[i] == "--recv-loss":
            try:
                float(args[i+1])
            except ValueError:
                print ("--recv-loss parameter should be float")
                usage(args[i+1])
            skipthis=1
            Environment["RecvLoss"] = args[i+1]
 
        elif args[i] == "--choose":
            skipthis=1
            Chosen.append(args[i+1])
            Environment["scenario"] = "sequence"
 
        elif args[i] == "--nodes":
            skipthis=1
            node_list = args[i+1].split(' ')
 
        elif args[i] == "-g" or args[i] == "--group" or args[i] == "--dsh-group":
            skipthis=1
            Environment["OutputFile"] = "%s/cluster-%s.log" % (os.environ['HOME'], args[i+1])
 
            dsh_file = "%s/.dsh/group/%s" % (os.environ['HOME'], args[i+1])
 
            # Hacks to make my life easier
            if args[i+1] == "r6":
                Environment["Stack"] = "cman"
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_xvm"
                Environment["stonith-params"] = "delay=0"
                Environment["IPBase"] = " fe80::1234:56:7890:4000"
 
            elif args[i+1] == "virt1":
                Environment["Stack"] = "corosync"
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_xvm"
                Environment["stonith-params"] = "delay=0"
                Environment["IPBase"] = " fe80::1234:56:7890:1000"
 
            elif args[i+1] == "east16" or args[i+1] == "nsew":
                Environment["Stack"] = "corosync"
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_apc"
                Environment["stonith-params"] = "ipaddr=east-apc,login=apc,passwd=apc,pcmk_host_map=east-01:2;east-02:3;east-03:4;east-04:5;east-05:6;east-06:7;east-07:9;east-08:10;east-09:11;east-10:12;east-11:13;east-12:14;east-13:15;east-14:18;east-15:17;east-16:19;"
                Environment["IPBase"] = " fe80::1234:56:7890:2000"
 
                if args[i+1] == "east16":
                    # Requires newer python than available via nsew
                    Environment["IPagent"] = "Dummy"
 
            elif args[i+1] == "corosync8":
                Environment["Stack"] = "corosync"
                Environment["DoStonith"]=1
                Environment["stonith-type"] = "fence_rhevm"
 
                print "Obtaining RHEV-M credentials from the current environment"
                Environment["stonith-params"] = "login=%s,passwd=%s,ipaddr=%s,ipport=%s,ssl=1,shell_timeout=10" % (
                    os.environ['RHEVM_USERNAME'],
                    os.environ['RHEVM_PASSWORD'],
                    os.environ['RHEVM_SERVER'],
                    os.environ['RHEVM_PORT'],
                    )
                Environment["IPBase"] = " fe80::1234:56:7890:3000"
 
            if os.path.isfile(dsh_file):
                node_list = []
                f = open(dsh_file, 'r')
                for line in f:
                    l = line.strip().rstrip()
                    if not l.startswith('#'):
                        node_list.append(l)
                f.close()
 
            else:
                print("Unknown DSH group: %s" % args[i+1])
 
        elif args[i] == "--syslog-facility" or args[i] == "--facility":
            skipthis=1
            Environment["SyslogFacility"] = args[i+1]
 
        elif args[i] == "--seed":
            skipthis=1
            Environment.SeedRandom(args[i+1])
 
        elif args[i] == "--warn-inactive":
            Environment["warn-inactive"] = 1
 
        elif args[i] == "--schema":
            skipthis=1
            Environment["Schema"] = args[i+1]
 
        elif args[i] == "--ais":
            Environment["Stack"] = "openais"
 
        elif args[i] == "--at-boot" or args[i] == "--cluster-starts-at-boot":
            skipthis=1
            if args[i+1] == "1" or args[i+1] == "yes":
                Environment["at-boot"] = 1
            elif args[i+1] == "0" or args[i+1] == "no":
                Environment["at-boot"] = 0
            else:
                usage(args[i+1])
 
        elif args[i] == "--heartbeat" or args[i] == "--lha":
            Environment["Stack"] = "heartbeat"
 
        elif args[i] == "--hae":
            Environment["Stack"] = "openais"
            Environment["Schema"] = "hae"
 
        elif args[i] == "--stack":
            if args[i+1] == "fedora" or args[i+1] == "fedora-17" or args[i+1] == "fedora-18":
                Environment["Stack"] = "corosync"
            elif args[i+1] == "rhel-6":
                Environment["Stack"] = "cman"
            elif args[i+1] == "rhel-7":
                Environment["Stack"] = "corosync"
            else:
                Environment["Stack"] = args[i+1]
            skipthis=1
 
        elif args[i] == "--once":
            Environment["scenario"] = "all-once"
 
        elif args[i] == "--boot":
            Environment["scenario"] = "boot"
 
        elif args[i] == "--valgrind-tests":
            Environment["valgrind-tests"] = 1
 
        elif args[i] == "--no-loop-tests":
            Environment["loop-tests"] = 0
 
        elif args[i] == "--loop-minutes":
            skipthis=1
            try:
                Environment["loop-minutes"]=int(args[i+1])
            except ValueError:
                usage(args[i])
 
        elif args[i] == "--no-unsafe-tests":
            Environment["unsafe-tests"] = 0
 
        elif args[i] == "--experimental-tests":
            Environment["experimental-tests"] = 1
 
        elif args[i] == "--container-tests":
            Environment["container-tests"] = 1
 
        elif args[i] == "--set":
            skipthis=1
            (name, value) = args[i+1].split('=')
            Environment[name] = value
            print "Setting %s = %s" % (name, value)
 
        elif args[i] == "--":
            break
 
        else:
            try:
                NumIter=int(args[i])
            except ValueError:
                usage(args[i])
 
     if Environment["DoBSC"]:
         NumIter = 2
         LimitNodes = 1
         Chosen.append("AddResource")
         Environment["ClobberCIB"]  = 1
         Environment["CIBResource"] = 0
         Environment["logger"].append(FileLog(Environment, Environment["LogFileName"]))
 
     elif Environment["OutputFile"]:
         Environment["logger"].append(FileLog(Environment, Environment["OutputFile"]))
 
     elif Environment["SyslogFacility"]:
         Environment["logger"].append(SysLog(Environment))
 
     if Environment["Stack"] == "heartbeat" or Environment["Stack"] == "lha":
         Environment["Stack"]    = "heartbeat"
         Environment['CMclass']  = crm_lha
 
     elif Environment["Stack"] == "openais" or Environment["Stack"] == "ais"  or Environment["Stack"] == "whitetank":
         Environment["Stack"]    = "openais (whitetank)"
         Environment['CMclass']  = crm_whitetank
         Environment["use_logd"] = 0
 
     elif Environment["Stack"] == "corosync" or Environment["Stack"] == "cs" or Environment["Stack"] == "mcp":
         Environment["Stack"]    = "corosync 2.x"
         Environment['CMclass']  = crm_mcp
         Environment["use_logd"] = 0
 
     elif Environment["Stack"] == "cman":
         Environment["Stack"]    = "corosync (cman)"
         Environment['CMclass']  = crm_cman
         Environment["use_logd"] = 0
 
     elif Environment["Stack"] == "v1":
         Environment["Stack"]    = "corosync (plugin v1)"
         Environment['CMclass']  = crm_cs_v1
         Environment["use_logd"] = 0
 
     elif Environment["Stack"] == "v0":
         Environment["Stack"]    = "corosync (plugin v0)"
         Environment['CMclass']  = crm_cs_v0
         Environment["use_logd"] = 0
 
     else:
         print "Unknown stack: "+Environment["Stack"]
         sys.exit(1)
 
     if len(node_list) < 1:
         print "No nodes specified!"
         sys.exit(1)
 
     if LimitNodes > 0:
         if len(node_list) > LimitNodes:
             print("Limiting the number of nodes configured=%d (max=%d)"
                   %(len(node_list), LimitNodes))
             while len(node_list) > LimitNodes:
                 node_list.pop(len(node_list)-1)
 
     Environment["nodes"] = []
     for n in node_list:
        if len(n.strip()):
            Environment["nodes"].append(n.strip())
 
     discover = random.Random().choice(Environment["nodes"])
     Environment["have_systemd"] = not rsh(discover, "systemctl list-units")
 
     # Detect syslog variant
     if not Environment.has_key("syslogd") or not Environment["syslogd"]:
         if Environment["have_systemd"]:
             # Systemd
             Environment["syslogd"] = rsh(discover, "systemctl list-units | grep syslog.*\.service.*active.*running | sed 's:.service.*::'", stdout=1).strip()
         else:
             # SYS-V
             Environment["syslogd"] = rsh(discover, "chkconfig --list | grep syslog.*on | awk '{print $1}' | head -n 1", stdout=1).strip()
 
         if not Environment.has_key("syslogd") or not Environment["syslogd"]:
             # default
             Environment["syslogd"] = "rsyslog"
 
     # Detect if the cluster starts at boot
     if not Environment.has_key("at-boot"):
         atboot = 0
 
         if Environment["have_systemd"]:
             # Systemd
             atboot = atboot or not rsh(discover, "systemctl is-enabled heartbeat.service")
             atboot = atboot or not rsh(discover, "systemctl is-enabled corosync.service")
             atboot = atboot or not rsh(discover, "systemctl is-enabled pacemaker.service")
         else:
             # SYS-V
             atboot = atboot or not rsh(discover, "chkconfig --list | grep -e corosync.*on -e heartbeat.*on -e pacemaker.*on")
 
         Environment["at-boot"] = atboot
 
     # Try to determinw an offset for IPaddr resources
     if Environment["CIBResource"] and not Environment.has_key("IPBase"):
         network=rsh(discover, "ip addr | grep inet | grep -v -e link -e inet6 -e '/32' -e ' lo' | awk '{print $2}'", stdout=1).strip()
         Environment["IPBase"] = rsh(discover, "nmap -sn -n %s | grep 'scan report' | awk '{print $NF}' | sed 's:(::' | sed 's:)::' | sort -V | tail -n 1" % network, stdout=1).strip()
         if not Environment["IPBase"]:
             Environment["IPBase"] = " fe80::1234:56:7890:1000"
             Environment.log("Could not determine an offset for IPaddr resources.  Perhaps nmap is not installed on the nodes.")
             Environment.log("Defaulting to '%s', use --test-ip-base to override" % Environment["IPBase"])
 
         elif int(Environment["IPBase"].split('.')[3]) >= 240:
             Environment.log("Could not determine an offset for IPaddr resources. Upper bound is too high: %s %s"
                             % (Environment["IPBase"], Environment["IPBase"].split('.')[3]))
             Environment["IPBase"] = " fe80::1234:56:7890:1000"
             Environment.log("Defaulting to '%s', use --test-ip-base to override" % Environment["IPBase"])
 
     # Create the Cluster Manager object
     cm = Environment['CMclass'](Environment)
     if TruncateLog:
         Environment.log("Truncating %s" % LogFile)
         lf = open(LogFile, "w");
         if lf != None:
             lf.truncate(0)
             lf.close()
 
     Audits = AuditList(cm)
 
     if Environment["ListTests"] == 1 :
         Tests = TestList(cm, Audits)
         Environment.log("Total %d tests"%len(Tests))
         for test in Tests :
             Environment.log(str(test.name));
         sys.exit(0)
 
-    if len(Chosen) == 0:
+    elif len(Chosen) == 0:
         Tests = TestList(cm, Audits)
 
     else:
+        Tests = []
         for TestCase in Chosen:
            match = None
 
            for test in TestList(cm, Audits):
                if test.name == TestCase:
                    match = test
 
            if not match:
                usage("--choose: No applicable/valid tests chosen")
            else:
                Tests.append(match)
 
     # Scenario selection
     if Environment["scenario"] == "basic-sanity":
         scenario = RandomTests(cm, [ BasicSanityCheck(Environment) ], Audits, Tests)
 
     elif Environment["scenario"] == "all-once":
         NumIter = len(Tests)
         scenario = AllOnce(
             cm, [ BootCluster(Environment), PacketLoss(Environment) ], Audits, Tests)
     elif Environment["scenario"] == "sequence":
         scenario = Sequence(
             cm, [ BootCluster(Environment), PacketLoss(Environment) ], Audits, Tests)
     elif Environment["scenario"] == "boot":
         scenario = Boot(cm, [ LeaveBooted(Environment)], Audits, [])
     else:
         scenario = RandomTests(
             cm, [ BootCluster(Environment), PacketLoss(Environment) ], Audits, Tests)
 
     Environment.log(">>>>>>>>>>>>>>>> BEGINNING " + repr(NumIter) + " TESTS ")
     Environment.log("Stack:                  %s" % Environment["Stack"])
     Environment.log("Schema:                 %s" % Environment["Schema"])
     Environment.log("Scenario:               %s" % scenario.__doc__)
     Environment.log("CTS Master:             %s" % Environment["cts-master"])
     Environment.log("CTS Logfile:            %s" % Environment["OutputFile"])
     Environment.log("Random Seed:            %s" % Environment["RandSeed"])
     Environment.log("Syslog variant:         %s" % Environment["syslogd"].strip())
     Environment.log("System log files:       %s" % Environment["LogFileName"])
 #    Environment.log(" ")
     if Environment.has_key("IPBase"):
         Environment.log("Base IP for resources:  %s" % Environment["IPBase"])
     Environment.log("Cluster starts at boot: %d" % Environment["at-boot"])
 
 
     Environment.dump()
     rc = Environment.run(scenario, NumIter)
     sys.exit(rc)