diff -Nru irqbalance-1.0.6/debian/changelog irqbalance-1.0.6/debian/changelog
--- irqbalance-1.0.6/debian/changelog	2014-08-21 11:32:23.000000000 -0400
+++ irqbalance-1.0.6/debian/changelog	2015-07-10 18:08:35.000000000 -0300
@@ -1,3 +1,10 @@
+irqbalance (1.0.6-2ubuntu2) utopic; urgency=medium
+
+  * d/p/0001-bug-893478_warn-once.patch: Only warn once
+    for affinity hint subset empty irqs. (LP: #1321425).
+
+ -- Jorge Niedbalski <jorge.niedbalski@canonical.com>  Fri, 10 Jul 2015 18:07:43 -0300
+
 irqbalance (1.0.6-2ubuntu1) utopic; urgency=medium
 
   * Add support for the $OPTIONS configuration variable in the
diff -Nru irqbalance-1.0.6/debian/patches/0001-bug-893478_warn-once.patch irqbalance-1.0.6/debian/patches/0001-bug-893478_warn-once.patch
--- irqbalance-1.0.6/debian/patches/0001-bug-893478_warn-once.patch	1969-12-31 21:00:00.000000000 -0300
+++ irqbalance-1.0.6/debian/patches/0001-bug-893478_warn-once.patch	2015-07-10 18:07:40.000000000 -0300
@@ -0,0 +1,83 @@
+Description: Only warn once for affinity hint 
+subset empty irqs. (LP: #1321425). 
+
+Origin: upstream, https://github.com/Irqbalance/irqbalance/commit/c9e5f36fe91d2d04d013d96f1093419245585de7
+Bug-Ubuntu: https://bugs.launchpad.net/bugs/1321425
+
+--- irqbalance-1.0.6.orig/activate.c
++++ irqbalance-1.0.6/activate.c
+@@ -1,26 +1,26 @@
+-/* 
++/*
+  * Copyright (C) 2006, Intel Corporation
+- * Copyright (C) 2012, Neil Horman <nhorman@tuxdriver.com> 
+- * 
++ * Copyright (C) 2012, Neil Horman <nhorman@tuxdriver.com>
++ *
+  * This file is part of irqbalance
+  *
+  * This program file 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; version 2 of the License.
+- * 
++ *
+  * 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 in a file named COPYING; if not, write to the 
+- * Free Software Foundation, Inc., 
+- * 51 Franklin Street, Fifth Floor, 
++ * along with this program in a file named COPYING; if not, write to the
++ * Free Software Foundation, Inc.,
++ * 51 Franklin Street, Fifth Floor,
+  * Boston, MA 02110-1301 USA
+  */
+ 
+-/* 
++/*
+  * This file contains the code to communicate a selected distribution / mapping
+  * of interrupts to the kernel.
+  */
+@@ -84,11 +84,14 @@ static void activate_mapping(struct irq_
+ 		if ((hint_policy == HINT_POLICY_SUBSET) &&
+ 		    (!cpus_empty(info->affinity_hint))) {
+ 			cpus_and(applied_mask, applied_mask, info->affinity_hint);
+-			if (!cpus_intersects(applied_mask, unbanned_cpus))
+-				log(TO_ALL, LOG_WARNING,
+-				    "irq %d affinity_hint subset empty\n",
+-				   info->irq);
+-			else
++                        if (!cpus_intersects(applied_mask, unbanned_cpus)) {
++                            if (!info->warned) {
++                                info->warned = 1;
++                                log(TO_ALL, LOG_WARNING,
++                                    "irq %d affinity_hint subset empty\n",
++                                    info->irq);
++                            }
++			} else
+ 				valid_mask = 1;
+ 		} else {
+ 			valid_mask = 1;
+@@ -96,7 +99,7 @@ static void activate_mapping(struct irq_
+ 	}
+ 
+ 	/*
+- 	 * Don't activate anything for which we have an invalid mask 
++ 	 * Don't activate anything for which we have an invalid mask
+  	 */
+ 	if (!valid_mask || check_affinity(info, applied_mask))
+ 		return;
+--- irqbalance-1.0.6.orig/types.h
++++ irqbalance-1.0.6/types.h
+@@ -63,6 +63,7 @@ struct irq_info {
+ 	uint64_t load;
+         int moved;
+         struct topo_obj *assigned_obj;
++        unsigned int warned;
+ };
+ 
+ #endif
diff -Nru irqbalance-1.0.6/debian/patches/series irqbalance-1.0.6/debian/patches/series
--- irqbalance-1.0.6/debian/patches/series	2013-06-06 06:22:45.000000000 -0400
+++ irqbalance-1.0.6/debian/patches/series	2015-07-10 18:07:40.000000000 -0300
@@ -1 +1,2 @@
 irqbalance.1.patch
+0001-bug-893478_warn-once.patch