cannot attach an iSCSI volume to an instance

[Muneyuki Noguchi]

Attaching an iSCSI volume to an instance fails in lp:nova rev.857 because arguments of some _execute() aren't split in the iSCSI driver.

Output of nova-compute is as follows:
2011-03-24 09:09:55,761 ERROR nova [-] Exception during message handling
(nova): TRACE: Traceback (most recent call last):
(nova): TRACE: File "/home/nttdata/nova/nova/rpc.py", line 200, in _receive
(nova): TRACE: rval = node_func(context=ctxt, **node_args)
(nova): TRACE: File "/home/nttdata/nova/nova/compute/manager.py", line 99, in decorated_function
(nova): TRACE: function(self, context, instance_id, *args, **kwargs)
(nova): TRACE: File "/home/nttdata/nova/nova/compute/manager.py", line 694, in attach_volume
(nova): TRACE: volume_id)
(nova): TRACE: File "/home/nttdata/nova/nova/volume/manager.py", line 163, in setup_compute_volume
(nova): TRACE: path = self.driver.discover_volume(context, volume_ref)
(nova): TRACE: File "/home/nttdata/nova/nova/volume/driver.py", line 458, in discover_volume
(nova): TRACE: self._run_iscsiadm(iscsi_properties, "--login")
(nova): TRACE: File "/home/nttdata/nova/nova/volume/driver.py", line 430, in _run_iscsiadm
(nova): TRACE: (out, err) = self._execute(command)
(nova): TRACE: File "/home/nttdata/nova/nova/utils.py", line 157, in execute
(nova): TRACE: env=env)
(nova): TRACE: File "/usr/lib/pymodules/python2.6/eventlet/green/subprocess.py", line 25, in __init__
(nova): TRACE: subprocess_orig.Popen.__init__(self, args, 0, *argss, **kwds)
(nova): TRACE: File "/usr/lib/python2.6/subprocess.py", line 623, in __init__
(nova): TRACE: errread, errwrite)
(nova): TRACE: File "/usr/lib/python2.6/subprocess.py", line 1141, in _execute_child
(nova): TRACE: raise child_exception
(nova): TRACE: OSError: [Errno 2] No such file or directory
(nova): TRACE: