diff --git a/tuned/hardware/inventory.py b/tuned/hardware/inventory.py
index cc20b7a..160467f 100644
--- a/tuned/hardware/inventory.py
+++ b/tuned/hardware/inventory.py
@@ -25,7 +25,11 @@ class Inventory(object):
 			buffer_size = consts.CFG_DEF_UDEV_BUFFER_SIZE
 
 		if (set_receive_buffer_size):
-			self._udev_monitor.set_receive_buffer_size(buffer_size)
+			try:
+				self._udev_monitor.set_receive_buffer_size(buffer_size)
+			except EnvironmentError:
+				log.warn("cannot set udev monitor receive buffer size, we are probably running inside " +
+					 "container or with limited capabilites, Tuned functionality may be limited")
 
 		if monitor_observer_factory is None:
 			monitor_observer_factory = _MonitorObserverFactory()
diff --git a/tuned/plugins/plugin_cpu.py b/tuned/plugins/plugin_cpu.py
index b6f14b1..de1abad 100644
--- a/tuned/plugins/plugin_cpu.py
+++ b/tuned/plugins/plugin_cpu.py
@@ -150,7 +150,10 @@ class CPULatencyPlugin(base.Plugin):
 			instance._first_instance = False
 			log.info("Latency settings from non-first CPU plugin instance '%s' will be ignored." % instance.name)
 
-		instance._first_device = list(instance.assigned_devices)[0]
+		try:
+			instance._first_device = list(instance.assigned_devices)[0]
+		except IndexError:
+			instance._first_device = None
 
 	def _instance_cleanup(self, instance):
 		if instance._first_instance: