diff --git a/tempest/api/image/base.py b/tempest/api/image/base.py
index da0ce83..c3205ce 100644
--- a/tempest/api/image/base.py
+++ b/tempest/api/image/base.py
@@ -70,8 +70,10 @@
         container_format = kwargs.pop('container_format')
         disk_format = kwargs.pop('disk_format')
 
-        image = cls.client.create_image(name, container_format,
-                                        disk_format, **kwargs)
+        image = cls.client.create_image(name=name,
+                                        container_format=container_format,
+                                        disk_format=disk_format,
+                                        **kwargs)
         # Image objects returned by the v1 client have the image
         # data inside a dict that is keyed against 'image'.
         if 'image' in image:
@@ -156,7 +158,7 @@
 
     def _create_image(self):
         name = data_utils.rand_name('image')
-        image = self.os_img_client.create_image(name,
+        image = self.os_img_client.create_image(name=name,
                                                 container_format='bare',
                                                 disk_format='raw')
         image_id = image['id']
diff --git a/tempest/api/image/v2/test_images_negative.py b/tempest/api/image/v2/test_images_negative.py
index 71c8c7a..485942e 100644
--- a/tempest/api/image/v2/test_images_negative.py
+++ b/tempest/api/image/v2/test_images_negative.py
@@ -90,10 +90,12 @@
     def test_register_with_invalid_container_format(self):
         # Negative tests for invalid data supplied to POST /images
         self.assertRaises(lib_exc.BadRequest, self.client.create_image,
-                          'test', 'wrong', 'vhd')
+                          name='test', container_format='wrong',
+                          disk_format='vhd')
 
     @test.attr(type=['negative'])
     @test.idempotent_id('70c6040c-5a97-4111-9e13-e73665264ce1')
     def test_register_with_invalid_disk_format(self):
         self.assertRaises(lib_exc.BadRequest, self.client.create_image,
-                          'test', 'bare', 'wrong')
+                          name='test', container_format='bare',
+                          disk_format='wrong')
diff --git a/tempest/api/network/admin/test_agent_management.py b/tempest/api/network/admin/test_agent_management.py
index c5d0d57..64802aa 100644
--- a/tempest/api/network/admin/test_agent_management.py
+++ b/tempest/api/network/admin/test_agent_management.py
@@ -63,7 +63,7 @@
         # one to avoid the negative effect.
         agent_status = {'admin_state_up': origin_status}
         body = self.admin_client.update_agent(agent_id=self.agent['id'],
-                                              agent_info=agent_status)
+                                              agent=agent_status)
         updated_status = body['agent']['admin_state_up']
         self.assertEqual(origin_status, updated_status)
 
@@ -73,7 +73,7 @@
         description = 'description for update agent.'
         agent_description = {'description': description}
         body = self.admin_client.update_agent(agent_id=self.agent['id'],
-                                              agent_info=agent_description)
+                                              agent=agent_description)
         self.addCleanup(self._restore_agent)
         updated_description = body['agent']['description']
         self.assertEqual(updated_description, description)
@@ -84,4 +84,4 @@
         description = self.agent['description'] or ''
         origin_agent = {'description': description}
         self.admin_client.update_agent(agent_id=self.agent['id'],
-                                       agent_info=origin_agent)
+                                       agent=origin_agent)
diff --git a/tempest/api/network/test_routers.py b/tempest/api/network/test_routers.py
index ed191b6..406ad44 100644
--- a/tempest/api/network/test_routers.py
+++ b/tempest/api/network/test_routers.py
@@ -301,7 +301,7 @@
 
         test_routes.sort(key=lambda x: x['destination'])
         extra_route = self.client.update_extra_routes(router['id'],
-                                                      test_routes)
+                                                      routes=test_routes)
         show_body = self.client.show_router(router['id'])
         # Assert the number of routes
         self.assertEqual(routes_num, len(extra_route['router']['routes']))
diff --git a/tempest/api/telemetry/base.py b/tempest/api/telemetry/base.py
index bbd01f0..8b617ac 100644
--- a/tempest/api/telemetry/base.py
+++ b/tempest/api/telemetry/base.py
@@ -77,7 +77,7 @@
     @classmethod
     def create_image(cls, client):
         body = client.create_image(
-            data_utils.rand_name('image'), container_format='bare',
+            name=data_utils.rand_name('image'), container_format='bare',
             disk_format='raw', visibility='private')
         # TODO(jswarren) Move ['image'] up to initial body value assignment
         # once both v1 and v2 glance clients include the full response
diff --git a/tempest/cmd/account_generator.py b/tempest/cmd/account_generator.py
index 297a066..b90ee04 100755
--- a/tempest/cmd/account_generator.py
+++ b/tempest/cmd/account_generator.py
@@ -357,7 +357,7 @@
                 resources['users'].append({
                     'tenant': tenant,
                     'name': user,
-                    'pass': data_utils.rand_name(),
+                    'pass': data_utils.rand_password(),
                     'prefix': user_group['prefix'],
                     'roles': user_group['roles']
                 })
diff --git a/tempest/common/utils/linux/remote_client.py b/tempest/common/utils/linux/remote_client.py
index 6150b4d..b76c356 100644
--- a/tempest/common/utils/linux/remote_client.py
+++ b/tempest/common/utils/linux/remote_client.py
@@ -73,7 +73,7 @@
             return output.split()[1]
 
     def get_number_of_vcpus(self):
-        output = self.exec_command('grep -c processor /proc/cpuinfo')
+        output = self.exec_command('grep -c ^processor /proc/cpuinfo')
         return int(output)
 
     def get_partitions(self):
diff --git a/tempest/config.py b/tempest/config.py
index b2f0baf..b847c06 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -17,9 +17,10 @@
 
 import logging as std_logging
 import os
+import tempfile
 
+from oslo_concurrency import lockutils
 from oslo_config import cfg
-
 from oslo_log import log as logging
 
 from tempest.test_discover import plugins
@@ -1397,6 +1398,8 @@
     def __getattr__(self, attr):
         if not self._config:
             self._fix_log_levels()
+            lock_dir = os.path.join(tempfile.gettempdir(), 'tempest-lock')
+            lockutils.set_defaults(lock_dir)
             self._config = TempestConfigPrivate(config_path=self._path)
 
         return getattr(self._config, attr)
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index a304081..44942b0 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -744,15 +744,23 @@
     def test_port_security_macspoofing_port(self):
         """Tests port_security extension enforces mac spoofing
 
-        1. create a new network
-        2. connect VM to new network
-        4. check VM can ping new network DHCP port
-        5. spoof mac on new new network interface
-        6. check Neutron enforces mac spoofing and blocks pings via spoofed
-            interface
-        7. disable port-security on the spoofed port
-        8. check Neutron allows pings via spoofed interface
+        Neutron security groups always apply anti-spoof rules on the VMs. This
+        allows traffic to originate and terminate at the VM as expected, but
+        prevents traffic to pass through the VM. Anti-spoof rules are not
+        required in cases where the VM routes traffic through it.
+
+        The test steps are :
+        1. Create a new network.
+        2. Connect (hotplug) the VM to a new network.
+        3. Check the VM can ping the DHCP interface of this network.
+        4. Spoof the mac address of the new VM interface.
+        5. Check the Security Group enforces mac spoofing and blocks pings via
+           spoofed interface (VM cannot ping the DHCP interface).
+        6. Disable port-security of the spoofed port- set the flag to false.
+        7. Retest 3rd step and check that the Security Group allows pings via
+        the spoofed interface.
         """
+
         spoof_mac = "00:00:00:00:00:01"
 
         # Create server
diff --git a/tempest/services/image/v2/json/images_client.py b/tempest/services/image/v2/json/images_client.py
index 44062ea..72b203a 100644
--- a/tempest/services/image/v2/json/images_client.py
+++ b/tempest/services/image/v2/json/images_client.py
@@ -55,6 +55,11 @@
         return self._http
 
     def update_image(self, image_id, patch):
+        """Update an image.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-image-v2.html#updateImage-v2
+        """
         data = json.dumps(patch)
         headers = {"Content-Type": "application/openstack-images-v2.0"
                                    "-json-patch"}
@@ -63,21 +68,13 @@
         body = json.loads(body)
         return service_client.ResponseBody(resp, body)
 
-    def create_image(self, name, container_format, disk_format, **kwargs):
-        params = {
-            "name": name,
-            "container_format": container_format,
-            "disk_format": disk_format,
-        }
+    def create_image(self, **kwargs):
+        """Create an image.
 
-        for option in kwargs:
-            value = kwargs.get(option)
-            if isinstance(value, dict) or isinstance(value, tuple):
-                params.update(value)
-            else:
-                params[option] = value
-
-        data = json.dumps(params)
+        Available params: see http://developer.openstack.org/
+                              api-ref-image-v2.html#createImage-v2
+        """
+        data = json.dumps(kwargs)
         resp, body = self.post('v2/images', data)
         self.expected_success(201, resp.status)
         body = json.loads(body)
diff --git a/tempest/services/network/json/network_client.py b/tempest/services/network/json/network_client.py
index 459891f..6e3b0fe 100644
--- a/tempest/services/network/json/network_client.py
+++ b/tempest/services/network/json/network_client.py
@@ -240,15 +240,18 @@
         uri = '/ports?device_id=%s' % uuid
         return self.list_resources(uri)
 
-    def update_agent(self, agent_id, agent_info):
+    def update_agent(self, agent_id, **kwargs):
         """Update agent
 
         :param agent_info: Agent update information.
         E.g {"admin_state_up": True}
         """
+        # TODO(piyush): Current api-site doesn't contain this API description.
+        # After fixing the api-site, we need to fix here also for putting the
+        # link to api-site.
+        # LP: https://bugs.launchpad.net/openstack-api-site/+bug/1526673
         uri = '/agents/%s' % agent_id
-        agent = {"agent": agent_info}
-        return self.update_resource(uri, agent)
+        return self.update_resource(uri, kwargs)
 
     def show_agent(self, agent_id, **fields):
         uri = '/agents/%s' % agent_id
@@ -270,6 +273,7 @@
         # TODO(piyush): Current api-site doesn't contain this API description.
         # After fixing the api-site, we need to fix here also for putting the
         # link to api-site.
+        # LP: https://bugs.launchpad.net/openstack-api-site/+bug/1526670
         uri = '/agents/%s/l3-routers' % agent_id
         return self.create_resource(uri, kwargs)
 
@@ -290,13 +294,14 @@
                                                network_id)
         return self.delete_resource(uri)
 
-    def update_extra_routes(self, router_id, routes):
+    def update_extra_routes(self, router_id, **kwargs):
+        """Update Extra routes.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-networking-v2-ext.html#updateExtraRoutes
+        """
         uri = '/routers/%s' % router_id
-        put_body = {
-            'router': {
-                'routes': routes
-            }
-        }
+        put_body = {'router': kwargs}
         return self.update_resource(uri, put_body)
 
     def delete_extra_routes(self, router_id):
diff --git a/tempest/tests/common/utils/linux/test_remote_client.py b/tempest/tests/common/utils/linux/test_remote_client.py
index 6b02d02..9c2b99e 100644
--- a/tempest/tests/common/utils/linux/test_remote_client.py
+++ b/tempest/tests/common/utils/linux/test_remote_client.py
@@ -79,7 +79,7 @@
     def test_get_number_of_vcpus(self):
         self.ssh_mock.mock.exec_command.return_value = '16'
         self.assertEqual(self.conn.get_number_of_vcpus(), 16)
-        self._assert_exec_called_with('grep -c processor /proc/cpuinfo')
+        self._assert_exec_called_with('grep -c ^processor /proc/cpuinfo')
 
     def test_get_partitions(self):
         proc_partitions = """major minor  #blocks  name